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Merge branch 'main' into jcogs33/update-externalapi-charpredicate

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This commit is contained in:
Jami
2022-12-12 16:01:22 -05:00
committed by GitHub
parent 123fe5edfe 636d5e341c
commit 84b69deb55
329 changed files with 5786 additions and 3464 deletions
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21
.github/workflows/check-query-ids.yml vendored Normal file
View File

@@ -0,0 +1,21 @@
name: Check query IDs
on:
pull_request:
paths:
- "**/src/**/*.ql"
- misc/scripts/check-query-ids.py
- .github/workflows/check-query-ids.yml
branches:
- main
- "rc/*"
workflow_dispatch:
jobs:
check:
name: Check query IDs
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- name: Check for duplicate query IDs
run: python3 misc/scripts/check-query-ids.py

1
.github/workflows/swift.yml vendored
View File

@@ -65,6 +65,7 @@ jobs:
if : ${{ github.event_name == 'pull_request' }}
needs: build-and-test-macos
runs-on: macos-12-xl
timeout-minutes: 60
steps:
- uses: actions/checkout@v3
- uses: ./swift/actions/run-integration-tests

9
config/identical-files.json
View File

@@ -470,6 +470,10 @@
"javascript/ql/src/Comments/CommentedOutCodeReferences.inc.qhelp",
"python/ql/src/Lexical/CommentedOutCodeReferences.inc.qhelp"
],
"ThreadResourceAbuse qhelp": [
"java/ql/src/experimental/Security/CWE/CWE-400/LocalThreadResourceAbuse.qhelp",
"java/ql/src/experimental/Security/CWE/CWE-400/ThreadResourceAbuse.qhelp"
],
"IDE Contextual Queries": [
"cpp/ql/lib/IDEContextual.qll",
"csharp/ql/lib/IDEContextual.qll",
@@ -537,6 +541,11 @@
"ruby/ql/lib/codeql/ruby/frameworks/data/internal/ApiGraphModels.qll",
"python/ql/lib/semmle/python/frameworks/data/internal/ApiGraphModels.qll"
],
"ApiGraphModelsExtensions": [
"javascript/ql/lib/semmle/javascript/frameworks/data/internal/ApiGraphModelsExtensions.qll",
"ruby/ql/lib/codeql/ruby/frameworks/data/internal/ApiGraphModelsExtensions.qll",
"python/ql/lib/semmle/python/frameworks/data/internal/ApiGraphModelsExtensions.qll"
],
"TaintedFormatStringQuery Ruby/JS": [
"javascript/ql/lib/semmle/javascript/security/dataflow/TaintedFormatStringQuery.qll",
"ruby/ql/lib/codeql/ruby/security/TaintedFormatStringQuery.qll"

4
cpp/ql/lib/change-notes/2022-12-08-support-getaddrinfo-dataflow.md Normal file
View File

@@ -0,0 +1,4 @@
---
category: minorAnalysis
---
* The `getaddrinfo` function is now recognized as a flow source.

4
cpp/ql/lib/change-notes/2022-12-08-support-scanf-dataflow.md Normal file
View File

@@ -0,0 +1,4 @@
---
category: minorAnalysis
---
* The `scanf` and `fscanf` functions and their variants are now recognized as flow sources.

4
cpp/ql/lib/change-notes/2022-12-09-generalize-argv-source.md Normal file
View File

@@ -0,0 +1,4 @@
---
category: minorAnalysis
---
* The `ArgvSource` flow source has been generalized to handle cases where the argument vector of `main` is not named `argv`.

2
cpp/ql/lib/semmle/code/cpp/models/Models.qll
View File

@@ -27,7 +27,7 @@ private import implementations.StdString
private import implementations.Swap
private import implementations.GetDelim
private import implementations.SmartPointer
private import implementations.Sscanf
private import implementations.Scanf
private import implementations.Send
private import implementations.Recv
private import implementations.Accept

2
cpp/ql/lib/semmle/code/cpp/models/implementations/Fread.qll
View File

@@ -15,6 +15,6 @@ private class Fread extends AliasFunction, RemoteFlowSourceFunction {
override predicate hasRemoteFlowSource(FunctionOutput output, string description) {
output.isParameterDeref(0) and
description = "String read by " + this.getName()
description = "string read by " + this.getName()
}
}

2
cpp/ql/lib/semmle/code/cpp/models/implementations/GetDelim.qll
View File

@@ -36,6 +36,6 @@ private class GetDelimFunction extends TaintFunction, AliasFunction, SideEffectF
override predicate hasRemoteFlowSource(FunctionOutput output, string description) {
output.isParameterDeref(0) and
description = "String read by " + this.getName()
description = "string read by " + this.getName()
}
}

8
cpp/ql/lib/semmle/code/cpp/models/implementations/Gets.qll
View File

@@ -49,10 +49,10 @@ private class FgetsFunction extends DataFlowFunction, TaintFunction, ArrayFuncti
override predicate hasRemoteFlowSource(FunctionOutput output, string description) {
output.isParameterDeref(0) and
description = "String read by " + this.getName()
description = "string read by " + this.getName()
or
output.isReturnValue() and
description = "String read by " + this.getName()
description = "string read by " + this.getName()
}
override predicate hasArrayWithVariableSize(int bufParam, int countParam) {
@@ -98,10 +98,10 @@ private class GetsFunction extends DataFlowFunction, ArrayFunction, AliasFunctio
override predicate hasLocalFlowSource(FunctionOutput output, string description) {
output.isParameterDeref(0) and
description = "String read by " + this.getName()
description = "string read by " + this.getName()
or
output.isReturnValue() and
description = "String read by " + this.getName()
description = "string read by " + this.getName()
}
override predicate hasArrayWithUnknownSize(int bufParam) { bufParam = 0 }

39
cpp/ql/lib/semmle/code/cpp/models/implementations/Inet.qll
View File

@@ -1,9 +1,10 @@
import semmle.code.cpp.models.interfaces.Taint
import semmle.code.cpp.models.interfaces.Alias
import semmle.code.cpp.models.interfaces.ArrayFunction
import semmle.code.cpp.models.interfaces.FlowSource
private class InetNtoa extends TaintFunction {
InetNtoa() { hasGlobalName("inet_ntoa") }
InetNtoa() { this.hasGlobalName("inet_ntoa") }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
input.isParameter(0) and
@@ -12,7 +13,7 @@ private class InetNtoa extends TaintFunction {
}
private class InetAton extends TaintFunction, ArrayFunction {
InetAton() { hasGlobalName("inet_aton") }
InetAton() { this.hasGlobalName("inet_aton") }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
input.isParameterDeref(0) and
@@ -32,7 +33,7 @@ private class InetAton extends TaintFunction, ArrayFunction {
}
private class InetAddr extends TaintFunction, ArrayFunction, AliasFunction {
InetAddr() { hasGlobalName("inet_addr") }
InetAddr() { this.hasGlobalName("inet_addr") }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
input.isParameterDeref(0) and
@@ -51,7 +52,7 @@ private class InetAddr extends TaintFunction, ArrayFunction, AliasFunction {
}
private class InetNetwork extends TaintFunction, ArrayFunction {
InetNetwork() { hasGlobalName("inet_network") }
InetNetwork() { this.hasGlobalName("inet_network") }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
input.isParameterDeref(0) and
@@ -64,7 +65,7 @@ private class InetNetwork extends TaintFunction, ArrayFunction {
}
private class InetMakeaddr extends TaintFunction {
InetMakeaddr() { hasGlobalName("inet_makeaddr") }
InetMakeaddr() { this.hasGlobalName("inet_makeaddr") }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
(
@@ -76,7 +77,7 @@ private class InetMakeaddr extends TaintFunction {
}
private class InetLnaof extends TaintFunction {
InetLnaof() { hasGlobalName("inet_lnaof") }
InetLnaof() { this.hasGlobalName("inet_lnaof") }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
input.isParameter(0) and
@@ -85,7 +86,7 @@ private class InetLnaof extends TaintFunction {
}
private class InetNetof extends TaintFunction {
InetNetof() { hasGlobalName("inet_netof") }
InetNetof() { this.hasGlobalName("inet_netof") }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
input.isParameter(0) and
@@ -94,7 +95,7 @@ private class InetNetof extends TaintFunction {
}
private class InetPton extends TaintFunction, ArrayFunction {
InetPton() { hasGlobalName("inet_pton") }
InetPton() { this.hasGlobalName("inet_pton") }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
(
@@ -114,7 +115,7 @@ private class InetPton extends TaintFunction, ArrayFunction {
}
private class Gethostbyname extends TaintFunction, ArrayFunction {
Gethostbyname() { hasGlobalName("gethostbyname") }
Gethostbyname() { this.hasGlobalName("gethostbyname") }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
input.isParameterDeref(0) and
@@ -127,7 +128,7 @@ private class Gethostbyname extends TaintFunction, ArrayFunction {
}
private class Gethostbyaddr extends TaintFunction, ArrayFunction {
Gethostbyaddr() { hasGlobalName("gethostbyaddr") }
Gethostbyaddr() { this.hasGlobalName("gethostbyaddr") }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
(
@@ -142,3 +143,21 @@ private class Gethostbyaddr extends TaintFunction, ArrayFunction {
override predicate hasArrayWithNullTerminator(int bufParam) { bufParam = 0 }
}
private class Getaddrinfo extends TaintFunction, ArrayFunction, RemoteFlowSourceFunction {
Getaddrinfo() { this.hasGlobalName("getaddrinfo") }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
input.isParameterDeref([0 .. 2]) and
output.isParameterDeref(3)
}
override predicate hasArrayInput(int bufParam) { bufParam in [0, 1] }
override predicate hasArrayWithNullTerminator(int bufParam) { bufParam in [0, 1] }
override predicate hasRemoteFlowSource(FunctionOutput output, string description) {
output.isParameterDeref(3) and
description = "address returned by " + this.getName()
}
}

2
cpp/ql/lib/semmle/code/cpp/models/implementations/Recv.qll
View File

@@ -83,7 +83,7 @@ private class Recv extends AliasFunction, ArrayFunction, SideEffectFunction,
or
this.hasGlobalName("recvfrom") and output.isParameterDeref([4, 5])
) and
description = "Buffer read by " + this.getName()
description = "buffer read by " + this.getName()
}
override predicate hasSocketInput(FunctionInput input) { input.isParameter(0) }

50
cpp/ql/lib/semmle/code/cpp/models/implementations/Sscanf.qll → cpp/ql/lib/semmle/code/cpp/models/implementations/Scanf.qll
View File

@@ -1,6 +1,6 @@
/**
* Provides implementation classes modeling `sscanf`, `fscanf` and various similar
* functions. See `semmle.code.cpp.models.Models` for usage information.
* Provides implementation classes modeling the `scanf` family of functions.
* See `semmle.code.cpp.models.Models` for usage information.
*/
import semmle.code.cpp.Function
@@ -9,18 +9,15 @@ import semmle.code.cpp.models.interfaces.ArrayFunction
import semmle.code.cpp.models.interfaces.Taint
import semmle.code.cpp.models.interfaces.Alias
import semmle.code.cpp.models.interfaces.SideEffect
import semmle.code.cpp.models.interfaces.FlowSource
/**
* The standard function `sscanf`, `fscanf` and its assorted variants
* The `scanf` family of functions.
*/
private class SscanfModel extends ArrayFunction, TaintFunction, AliasFunction, SideEffectFunction {
SscanfModel() { this instanceof Sscanf or this instanceof Fscanf or this instanceof Snscanf }
abstract private class ScanfFunctionModel extends ArrayFunction, TaintFunction, AliasFunction,
SideEffectFunction {
override predicate hasArrayWithNullTerminator(int bufParam) {
bufParam = this.(ScanfFunction).getFormatParameterIndex()
or
not this instanceof Fscanf and
bufParam = this.(ScanfFunction).getInputParameterIndex()
}
override predicate hasArrayInput(int bufParam) { this.hasArrayWithNullTerminator(bufParam) }
@@ -36,7 +33,7 @@ private class SscanfModel extends ArrayFunction, TaintFunction, AliasFunction, S
)
}
private int getArgsStartPosition() { result = this.getNumberOfParameters() }
int getArgsStartPosition() { result = this.getNumberOfParameters() }
override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {
input.isParameterDeref(this.(ScanfFunction).getInputParameterIndex()) and
@@ -70,3 +67,36 @@ private class SscanfModel extends ArrayFunction, TaintFunction, AliasFunction, S
]
}
}
/**
* The standard function `scanf` and its assorted variants
*/
private class ScanfModel extends ScanfFunctionModel, LocalFlowSourceFunction instanceof Scanf {
override predicate hasLocalFlowSource(FunctionOutput output, string description) {
output.isParameterDeref(any(int i | i >= this.getArgsStartPosition())) and
description = "value read by " + this.getName()
}
}
/**
* The standard function `fscanf` and its assorted variants
*/
private class FscanfModel extends ScanfFunctionModel, RemoteFlowSourceFunction instanceof Fscanf {
override predicate hasRemoteFlowSource(FunctionOutput output, string description) {
output.isParameterDeref(any(int i | i >= this.getArgsStartPosition())) and
description = "value read by " + this.getName()
}
}
/**
* The standard function `sscanf` and its assorted variants
*/
private class SscanfModel extends ScanfFunctionModel {
SscanfModel() { this instanceof Sscanf or this instanceof Snscanf }
override predicate hasArrayWithNullTerminator(int bufParam) {
super.hasArrayWithNullTerminator(bufParam)
or
bufParam = this.(ScanfFunction).getInputParameterIndex()
}
}

2
cpp/ql/lib/semmle/code/cpp/models/implementations/Send.qll
View File

@@ -58,7 +58,7 @@ private class Send extends AliasFunction, ArrayFunction, SideEffectFunction, Rem
override ParameterIndex getParameterSizeIndex(ParameterIndex i) { i = 1 and result = 2 }
override predicate hasRemoteFlowSink(FunctionInput input, string description) {
input.isParameterDeref(1) and description = "Buffer sent by " + this.getName()
input.isParameterDeref(1) and description = "buffer sent by " + this.getName()
}
override predicate hasSocketInput(FunctionInput input) { input.isParameter(0) }

6
cpp/ql/lib/semmle/code/cpp/security/FlowSources.qll
View File

@@ -89,9 +89,9 @@ private class LocalParameterSource extends LocalFlowSource {
private class ArgvSource extends LocalFlowSource {
ArgvSource() {
exists(Parameter argv |
argv.hasName("argv") and
argv.getFunction().hasGlobalName("main") and
exists(Function main, Parameter argv |
main.hasGlobalName("main") and
main.getParameter(1) = argv and
this.asExpr() = argv.getAnAccess()
)
}

35
cpp/ql/src/Security/CWE/CWE-022/TaintedPath.ql
View File

@@ -16,7 +16,7 @@
import cpp
import semmle.code.cpp.security.FunctionWithWrappers
import semmle.code.cpp.security.Security
import semmle.code.cpp.security.FlowSources
import semmle.code.cpp.ir.IR
import semmle.code.cpp.ir.dataflow.TaintTracking
import DataFlow::PathGraph
@@ -47,12 +47,6 @@ class FileFunction extends FunctionWithWrappers {
override predicate interestingArg(int arg) { arg = 0 }
}
Expr asSourceExpr(DataFlow::Node node) {
result = node.asConvertedExpr()
or
result = node.asDefiningArgument()
}
Expr asSinkExpr(DataFlow::Node node) {
result =
node.asOperand()
@@ -89,7 +83,7 @@ predicate hasUpperBoundsCheck(Variable var) {
class TaintedPathConfiguration extends TaintTracking::Configuration {
TaintedPathConfiguration() { this = "TaintedPathConfiguration" }
override predicate isSource(DataFlow::Node node) { isUserInput(asSourceExpr(node), _) }
override predicate isSource(DataFlow::Node node) { node instanceof FlowSource }
override predicate isSink(DataFlow::Node node) {
exists(FileFunction fileFunction |
@@ -108,31 +102,16 @@ class TaintedPathConfiguration extends TaintTracking::Configuration {
hasUpperBoundsCheck(checkedVar)
)
}
predicate hasFilteredFlowPath(DataFlow::PathNode source, DataFlow::PathNode sink) {
this.hasFlowPath(source, sink) and
// The use of `isUserInput` in `isSink` in combination with `asSourceExpr` causes
// duplicate results. Filter these duplicates. The proper solution is to switch to
// using `LocalFlowSource` and `RemoteFlowSource`, but this currently only supports
// a subset of the cases supported by `isUserInput`.
not exists(DataFlow::PathNode source2 |
this.hasFlowPath(source2, sink) and
asSourceExpr(source.getNode()) = asSourceExpr(source2.getNode())
|
not exists(source.getNode().asConvertedExpr()) and exists(source2.getNode().asConvertedExpr())
)
}
}
from
FileFunction fileFunction, Expr taintedArg, Expr taintSource, TaintedPathConfiguration cfg,
DataFlow::PathNode sourceNode, DataFlow::PathNode sinkNode, string taintCause, string callChain
FileFunction fileFunction, Expr taintedArg, FlowSource taintSource, TaintedPathConfiguration cfg,
DataFlow::PathNode sourceNode, DataFlow::PathNode sinkNode, string callChain
where
taintedArg = asSinkExpr(sinkNode.getNode()) and
fileFunction.outermostWrapperFunctionCall(taintedArg, callChain) and
cfg.hasFilteredFlowPath(sourceNode, sinkNode) and
taintSource = asSourceExpr(sourceNode.getNode()) and
isUserInput(taintSource, taintCause)
cfg.hasFlowPath(sourceNode, sinkNode) and
taintSource = sourceNode.getNode()
select taintedArg, sourceNode, sinkNode,
"This argument to a file access function is derived from $@ and then passed to " + callChain + ".",
taintSource, "user input (" + taintCause + ")"
taintSource, "user input (" + taintSource.getSourceType() + ")"

6
cpp/ql/src/Security/CWE/CWE-129/ImproperArrayIndexValidation.ql
View File

@@ -116,10 +116,6 @@ class ImproperArrayIndexValidationConfig extends TaintTracking::Configuration {
}
}
/** Gets `str` where the first letter has been lowercased. */
bindingset[str]
string lowerFirst(string str) { result = str.prefix(1).toLowerCase() + str.suffix(1) }
from
ImproperArrayIndexValidationConfig conf, DataFlow::PathNode source, DataFlow::PathNode sink,
string sourceType
@@ -128,4 +124,4 @@ where
isFlowSource(source.getNode(), sourceType)
select sink.getNode(), source, sink,
"An array indexing expression depends on $@ that might be outside the bounds of the array.",
source.getNode(), lowerFirst(sourceType)
source.getNode(), sourceType

33
cpp/ql/src/Security/CWE/CWE-311/CleartextBufferWrite.ql
View File

@@ -19,7 +19,25 @@ import semmle.code.cpp.ir.dataflow.TaintTracking
import DataFlow::PathGraph
/**
* A taint flow configuration for flow from user input to a buffer write.
* A buffer write into a sensitive expression.
*/
class SensitiveBufferWrite extends Expr instanceof BufferWrite::BufferWrite {
SensitiveBufferWrite() { super.getDest() instanceof SensitiveExpr }
/**
* Gets a data source of this operation.
*/
Expr getASource() { result = super.getASource() }
/**
* Gets the destination buffer of this operation.
*/
Expr getDest() { result = super.getDest() }
}
/**
* A taint flow configuration for flow from user input to a buffer write
* into a sensitive expression.
*/
class ToBufferConfiguration extends TaintTracking::Configuration {
ToBufferConfiguration() { this = "ToBufferConfiguration" }
@@ -31,18 +49,17 @@ class ToBufferConfiguration extends TaintTracking::Configuration {
}
override predicate isSink(DataFlow::Node sink) {
exists(BufferWrite::BufferWrite w | w.getASource() = sink.asExpr())
exists(SensitiveBufferWrite w | w.getASource() = sink.asExpr())
}
}
from
ToBufferConfiguration config, BufferWrite::BufferWrite w, DataFlow::PathNode sourceNode,
DataFlow::PathNode sinkNode, FlowSource source, SensitiveExpr dest
ToBufferConfiguration config, SensitiveBufferWrite w, DataFlow::PathNode sourceNode,
DataFlow::PathNode sinkNode, FlowSource source
where
config.hasFlowPath(sourceNode, sinkNode) and
sourceNode.getNode() = source and
w.getASource() = sinkNode.getNode().asExpr() and
dest = w.getDest()
w.getASource() = sinkNode.getNode().asExpr()
select w, sourceNode, sinkNode,
"This write into buffer '" + dest.toString() + "' may contain unencrypted data from $@.", source,
"user input (" + source.getSourceType() + ")"
"This write into buffer '" + w.getDest().toString() + "' may contain unencrypted data from $@.",
source, "user input (" + source.getSourceType() + ")"

16
cpp/ql/test/library-tests/dataflow/source-sink-tests/local-flow.ql
View File

@@ -11,8 +11,20 @@ class LocalFlowSourceTest extends InlineExpectationsTest {
override predicate hasActualResult(Location location, string element, string tag, string value) {
tag = "local_source" and
value = "" and
exists(LocalFlowSource node |
exists(LocalFlowSource node, int n |
n =
strictcount(LocalFlowSource otherNode |
node.getLocation().getStartLine() = otherNode.getLocation().getStartLine()
) and
(
n = 1 and value = ""
or
// If there is more than one node on this line
// we specify the location explicitly.
n > 1 and
value =
node.getLocation().getStartLine().toString() + ":" + node.getLocation().getStartColumn()
) and
location = node.getLocation() and
element = node.toString()
)

32
cpp/ql/test/library-tests/dataflow/source-sink-tests/remote-flow.ql
View File

@@ -11,8 +11,20 @@ class RemoteFlowSourceTest extends InlineExpectationsTest {
override predicate hasActualResult(Location location, string element, string tag, string value) {
tag = "remote_source" and
value = "" and
exists(RemoteFlowSource node |
exists(RemoteFlowSource node, int n |
n =
strictcount(RemoteFlowSource otherNode |
node.getLocation().getStartLine() = otherNode.getLocation().getStartLine()
) and
(
n = 1 and value = ""
or
// If there is more than one node on this line
// we specify the location explicitly.
n > 1 and
value =
node.getLocation().getStartLine().toString() + ":" + node.getLocation().getStartColumn()
) and
location = node.getLocation() and
element = node.toString()
)
@@ -26,8 +38,20 @@ class RemoteFlowSinkTest extends InlineExpectationsTest {
override predicate hasActualResult(Location location, string element, string tag, string value) {
tag = "remote_sink" and
value = "" and
exists(RemoteFlowSink node |
exists(RemoteFlowSink node, int n |
n =
strictcount(RemoteFlowSink otherNode |
node.getLocation().getStartLine() = otherNode.getLocation().getStartLine()
) and
(
n = 1 and value = ""
or
// If there is more than one node on this line
// we specify the location explicitly.
n > 1 and
value =
node.getLocation().getStartLine().toString() + ":" + node.getLocation().getStartColumn()
) and
location = node.getLocation() and
element = node.toString()
)

24
cpp/ql/test/library-tests/dataflow/source-sink-tests/sources-and-sinks.cpp
View File

@@ -26,3 +26,27 @@ void test_readv_and_writev(iovec* iovs) {
readv(0, iovs, 16); // $ remote_source
writev(0, iovs, 16); // $ remote_sink
}
struct FILE;
int fscanf(FILE *stream, const char *format, ...);
int scanf(const char *format, ...);
void test_scanf(FILE *stream, int *d, char *buf) {
scanf(""); // Not a local source, as there are no output arguments
fscanf(stream, ""); // Not a remote source, as there are no output arguments
scanf("%d", d); // $ local_source
fscanf(stream, "%d", d); // $ remote_source
scanf("%d %s", d, buf); // $ local_source=40:18 local_source=40:21
fscanf(stream, "%d %s", d, buf); // $ remote_source=41:27 remote_source=41:30
}
struct addrinfo;
int getaddrinfo(const char *hostname, const char *servname,
const struct addrinfo *hints, struct addrinfo **res);
void test_inet(char *hostname, char *servname, struct addrinfo *hints) {
addrinfo *res;
int ret = getaddrinfo(hostname, servname, hints, &res); // $ remote_source
}

2
cpp/ql/test/query-tests/Security/CWE/CWE-022/SAMATE/TaintedPath/TaintedPath.expected
View File

@@ -5,4 +5,4 @@ nodes
| CWE23_Relative_Path_Traversal__char_console_fopen_11.cpp:77:23:77:26 | data indirection | semmle.label | data indirection |
subpaths
#select
| CWE23_Relative_Path_Traversal__char_console_fopen_11.cpp:77:23:77:26 | data | CWE23_Relative_Path_Traversal__char_console_fopen_11.cpp:55:27:55:38 | fgets output argument | CWE23_Relative_Path_Traversal__char_console_fopen_11.cpp:77:23:77:26 | data indirection | This argument to a file access function is derived from $@ and then passed to fopen(filename). | CWE23_Relative_Path_Traversal__char_console_fopen_11.cpp:55:27:55:38 | ... + ... | user input (fgets) |
| CWE23_Relative_Path_Traversal__char_console_fopen_11.cpp:77:23:77:26 | data | CWE23_Relative_Path_Traversal__char_console_fopen_11.cpp:55:27:55:38 | fgets output argument | CWE23_Relative_Path_Traversal__char_console_fopen_11.cpp:77:23:77:26 | data indirection | This argument to a file access function is derived from $@ and then passed to fopen(filename). | CWE23_Relative_Path_Traversal__char_console_fopen_11.cpp:55:27:55:38 | fgets output argument | user input (string read by fgets) |

12
cpp/ql/test/query-tests/Security/CWE/CWE-022/semmle/tests/TaintedPath.expected
View File

@@ -1,24 +1,20 @@
edges
| test.c:9:23:9:26 | argv | test.c:17:11:17:18 | fileName indirection |
| test.c:31:22:31:25 | argv | test.c:32:11:32:18 | fileName indirection |
| test.c:37:17:37:24 | fileName | test.c:38:11:38:18 | fileName indirection |
| test.c:37:17:37:24 | scanf output argument | test.c:38:11:38:18 | fileName indirection |
| test.c:43:17:43:24 | fileName | test.c:44:11:44:18 | fileName indirection |
| test.c:43:17:43:24 | scanf output argument | test.c:44:11:44:18 | fileName indirection |
nodes
| test.c:9:23:9:26 | argv | semmle.label | argv |
| test.c:17:11:17:18 | fileName indirection | semmle.label | fileName indirection |
| test.c:31:22:31:25 | argv | semmle.label | argv |
| test.c:32:11:32:18 | fileName indirection | semmle.label | fileName indirection |
| test.c:37:17:37:24 | fileName | semmle.label | fileName |
| test.c:37:17:37:24 | scanf output argument | semmle.label | scanf output argument |
| test.c:38:11:38:18 | fileName indirection | semmle.label | fileName indirection |
| test.c:43:17:43:24 | fileName | semmle.label | fileName |
| test.c:43:17:43:24 | scanf output argument | semmle.label | scanf output argument |
| test.c:44:11:44:18 | fileName indirection | semmle.label | fileName indirection |
subpaths
#select
| test.c:17:11:17:18 | fileName | test.c:9:23:9:26 | argv | test.c:17:11:17:18 | fileName indirection | This argument to a file access function is derived from $@ and then passed to fopen(filename). | test.c:9:23:9:26 | argv | user input (argv) |
| test.c:32:11:32:18 | fileName | test.c:31:22:31:25 | argv | test.c:32:11:32:18 | fileName indirection | This argument to a file access function is derived from $@ and then passed to fopen(filename). | test.c:31:22:31:25 | argv | user input (argv) |
| test.c:38:11:38:18 | fileName | test.c:37:17:37:24 | fileName | test.c:38:11:38:18 | fileName indirection | This argument to a file access function is derived from $@ and then passed to fopen(filename). | test.c:37:17:37:24 | fileName | user input (scanf) |
| test.c:44:11:44:18 | fileName | test.c:43:17:43:24 | fileName | test.c:44:11:44:18 | fileName indirection | This argument to a file access function is derived from $@ and then passed to fopen(filename). | test.c:43:17:43:24 | fileName | user input (scanf) |
| test.c:17:11:17:18 | fileName | test.c:9:23:9:26 | argv | test.c:17:11:17:18 | fileName indirection | This argument to a file access function is derived from $@ and then passed to fopen(filename). | test.c:9:23:9:26 | argv | user input (a command-line argument) |
| test.c:32:11:32:18 | fileName | test.c:31:22:31:25 | argv | test.c:32:11:32:18 | fileName indirection | This argument to a file access function is derived from $@ and then passed to fopen(filename). | test.c:31:22:31:25 | argv | user input (a command-line argument) |
| test.c:38:11:38:18 | fileName | test.c:37:17:37:24 | scanf output argument | test.c:38:11:38:18 | fileName indirection | This argument to a file access function is derived from $@ and then passed to fopen(filename). | test.c:37:17:37:24 | scanf output argument | user input (value read by scanf) |
| test.c:44:11:44:18 | fileName | test.c:43:17:43:24 | scanf output argument | test.c:44:11:44:18 | fileName indirection | This argument to a file access function is derived from $@ and then passed to fopen(filename). | test.c:43:17:43:24 | scanf output argument | user input (value read by scanf) |

22
cpp/ql/test/query-tests/Security/CWE/CWE-078/semmle/ExecTainted/ExecTainted.expected
View File

@@ -163,17 +163,17 @@ subpaths
#select
| test.cpp:23:12:23:19 | command1 | test.cpp:16:20:16:23 | argv | test.cpp:23:12:23:19 | command1 indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to system(string). | test.cpp:16:20:16:23 | argv | user input (a command-line argument) | test.cpp:22:13:22:20 | sprintf output argument | sprintf output argument |
| test.cpp:51:10:51:16 | command | test.cpp:47:21:47:26 | call to getenv | test.cpp:51:10:51:16 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to system(string). | test.cpp:47:21:47:26 | call to getenv | user input (an environment variable) | test.cpp:50:11:50:17 | sprintf output argument | sprintf output argument |
| test.cpp:65:10:65:16 | command | test.cpp:62:9:62:16 | fread output argument | test.cpp:65:10:65:16 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to system(string). | test.cpp:62:9:62:16 | fread output argument | user input (String read by fread) | test.cpp:64:11:64:17 | strncat output argument | strncat output argument |
| test.cpp:85:32:85:38 | command | test.cpp:82:9:82:16 | fread output argument | test.cpp:85:32:85:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:82:9:82:16 | fread output argument | user input (String read by fread) | test.cpp:84:11:84:17 | strncat output argument | strncat output argument |
| test.cpp:94:45:94:48 | path | test.cpp:91:9:91:16 | fread output argument | test.cpp:94:45:94:48 | path indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:91:9:91:16 | fread output argument | user input (String read by fread) | test.cpp:93:11:93:14 | strncat output argument | strncat output argument |
| test.cpp:65:10:65:16 | command | test.cpp:62:9:62:16 | fread output argument | test.cpp:65:10:65:16 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to system(string). | test.cpp:62:9:62:16 | fread output argument | user input (string read by fread) | test.cpp:64:11:64:17 | strncat output argument | strncat output argument |
| test.cpp:85:32:85:38 | command | test.cpp:82:9:82:16 | fread output argument | test.cpp:85:32:85:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:82:9:82:16 | fread output argument | user input (string read by fread) | test.cpp:84:11:84:17 | strncat output argument | strncat output argument |
| test.cpp:94:45:94:48 | path | test.cpp:91:9:91:16 | fread output argument | test.cpp:94:45:94:48 | path indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:91:9:91:16 | fread output argument | user input (string read by fread) | test.cpp:93:11:93:14 | strncat output argument | strncat output argument |
| test.cpp:108:18:108:22 | call to c_str | test.cpp:106:20:106:25 | call to getenv | test.cpp:108:18:108:22 | call to c_str indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to system(string). | test.cpp:106:20:106:25 | call to getenv | user input (an environment variable) | test.cpp:107:31:107:31 | call to operator+ | call to operator+ |
| test.cpp:114:25:114:29 | call to c_str | test.cpp:113:20:113:25 | call to getenv | test.cpp:114:25:114:29 | call to c_str indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to system(string). | test.cpp:113:20:113:25 | call to getenv | user input (an environment variable) | test.cpp:114:17:114:17 | Call | Call |
| test.cpp:120:25:120:28 | call to data | test.cpp:119:20:119:25 | call to getenv | test.cpp:120:10:120:30 | call to data indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to system(string). | test.cpp:119:20:119:25 | call to getenv | user input (an environment variable) | test.cpp:120:17:120:17 | Call | Call |
| test.cpp:143:10:143:16 | command | test.cpp:140:9:140:11 | fread output argument | test.cpp:143:10:143:16 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to system(string). | test.cpp:140:9:140:11 | fread output argument | user input (String read by fread) | test.cpp:142:11:142:17 | sprintf output argument | sprintf output argument |
| test.cpp:183:32:183:38 | command | test.cpp:174:9:174:16 | fread output argument | test.cpp:183:32:183:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:174:9:174:16 | fread output argument | user input (String read by fread) | test.cpp:177:13:177:17 | strncat output argument | strncat output argument |
| test.cpp:183:32:183:38 | command | test.cpp:174:9:174:16 | fread output argument | test.cpp:183:32:183:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:174:9:174:16 | fread output argument | user input (String read by fread) | test.cpp:178:13:178:19 | strncat output argument | strncat output argument |
| test.cpp:183:32:183:38 | command | test.cpp:174:9:174:16 | fread output argument | test.cpp:183:32:183:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:174:9:174:16 | fread output argument | user input (String read by fread) | test.cpp:180:13:180:19 | strncat output argument | strncat output argument |
| test.cpp:198:32:198:38 | command | test.cpp:194:9:194:16 | fread output argument | test.cpp:198:32:198:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:194:9:194:16 | fread output argument | user input (String read by fread) | test.cpp:187:11:187:15 | strncat output argument | strncat output argument |
| test.cpp:198:32:198:38 | command | test.cpp:194:9:194:16 | fread output argument | test.cpp:198:32:198:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:194:9:194:16 | fread output argument | user input (String read by fread) | test.cpp:188:11:188:17 | strncat output argument | strncat output argument |
| test.cpp:222:32:222:38 | command | test.cpp:218:9:218:16 | fread output argument | test.cpp:222:32:222:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:218:9:218:16 | fread output argument | user input (String read by fread) | test.cpp:220:10:220:16 | strncat output argument | strncat output argument |
| test.cpp:222:32:222:38 | command | test.cpp:218:9:218:16 | fread output argument | test.cpp:222:32:222:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:218:9:218:16 | fread output argument | user input (String read by fread) | test.cpp:220:10:220:16 | strncat output argument | strncat output argument |
| test.cpp:143:10:143:16 | command | test.cpp:140:9:140:11 | fread output argument | test.cpp:143:10:143:16 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to system(string). | test.cpp:140:9:140:11 | fread output argument | user input (string read by fread) | test.cpp:142:11:142:17 | sprintf output argument | sprintf output argument |
| test.cpp:183:32:183:38 | command | test.cpp:174:9:174:16 | fread output argument | test.cpp:183:32:183:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:174:9:174:16 | fread output argument | user input (string read by fread) | test.cpp:177:13:177:17 | strncat output argument | strncat output argument |
| test.cpp:183:32:183:38 | command | test.cpp:174:9:174:16 | fread output argument | test.cpp:183:32:183:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:174:9:174:16 | fread output argument | user input (string read by fread) | test.cpp:178:13:178:19 | strncat output argument | strncat output argument |
| test.cpp:183:32:183:38 | command | test.cpp:174:9:174:16 | fread output argument | test.cpp:183:32:183:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:174:9:174:16 | fread output argument | user input (string read by fread) | test.cpp:180:13:180:19 | strncat output argument | strncat output argument |
| test.cpp:198:32:198:38 | command | test.cpp:194:9:194:16 | fread output argument | test.cpp:198:32:198:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:194:9:194:16 | fread output argument | user input (string read by fread) | test.cpp:187:11:187:15 | strncat output argument | strncat output argument |
| test.cpp:198:32:198:38 | command | test.cpp:194:9:194:16 | fread output argument | test.cpp:198:32:198:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:194:9:194:16 | fread output argument | user input (string read by fread) | test.cpp:188:11:188:17 | strncat output argument | strncat output argument |
| test.cpp:222:32:222:38 | command | test.cpp:218:9:218:16 | fread output argument | test.cpp:222:32:222:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:218:9:218:16 | fread output argument | user input (string read by fread) | test.cpp:220:10:220:16 | strncat output argument | strncat output argument |
| test.cpp:222:32:222:38 | command | test.cpp:218:9:218:16 | fread output argument | test.cpp:222:32:222:38 | command indirection | This argument to an OS command is derived from $@, dangerously concatenated into $@, and then passed to execl. | test.cpp:218:9:218:16 | fread output argument | user input (string read by fread) | test.cpp:220:10:220:16 | strncat output argument | strncat output argument |

40
cpp/ql/test/query-tests/Security/CWE/CWE-120/semmle/tests/UnboundedWrite.expected
View File

@@ -7,42 +7,12 @@ edges
| tests.c:28:22:28:25 | argv | tests.c:28:22:28:28 | access to array |
| tests.c:28:22:28:25 | argv | tests.c:28:22:28:28 | access to array indirection |
| tests.c:28:22:28:25 | argv | tests.c:28:22:28:28 | access to array indirection |
| tests.c:28:22:28:25 | argv | tests.c:31:15:31:23 | buffer100 |
| tests.c:28:22:28:25 | argv | tests.c:31:15:31:23 | buffer100 |
| tests.c:28:22:28:25 | argv | tests.c:31:15:31:23 | buffer100 indirection |
| tests.c:28:22:28:25 | argv | tests.c:31:15:31:23 | buffer100 indirection |
| tests.c:28:22:28:25 | argv | tests.c:33:21:33:29 | buffer100 |
| tests.c:28:22:28:25 | argv | tests.c:33:21:33:29 | buffer100 |
| tests.c:28:22:28:25 | argv | tests.c:33:21:33:29 | buffer100 indirection |
| tests.c:28:22:28:25 | argv | tests.c:33:21:33:29 | buffer100 indirection |
| tests.c:29:28:29:31 | argv | tests.c:29:28:29:34 | access to array |
| tests.c:29:28:29:31 | argv | tests.c:29:28:29:34 | access to array |
| tests.c:29:28:29:31 | argv | tests.c:29:28:29:34 | access to array |
| tests.c:29:28:29:31 | argv | tests.c:29:28:29:34 | access to array |
| tests.c:29:28:29:31 | argv | tests.c:29:28:29:34 | access to array indirection |
| tests.c:29:28:29:31 | argv | tests.c:29:28:29:34 | access to array indirection |
| tests.c:29:28:29:31 | argv | tests.c:31:15:31:23 | buffer100 |
| tests.c:29:28:29:31 | argv | tests.c:31:15:31:23 | buffer100 |
| tests.c:29:28:29:31 | argv | tests.c:31:15:31:23 | buffer100 indirection |
| tests.c:29:28:29:31 | argv | tests.c:31:15:31:23 | buffer100 indirection |
| tests.c:29:28:29:31 | argv | tests.c:33:21:33:29 | buffer100 |
| tests.c:29:28:29:31 | argv | tests.c:33:21:33:29 | buffer100 |
| tests.c:29:28:29:31 | argv | tests.c:33:21:33:29 | buffer100 indirection |
| tests.c:29:28:29:31 | argv | tests.c:33:21:33:29 | buffer100 indirection |
| tests.c:31:15:31:23 | array to pointer conversion | tests.c:31:15:31:23 | buffer100 |
| tests.c:31:15:31:23 | array to pointer conversion | tests.c:31:15:31:23 | buffer100 indirection |
| tests.c:31:15:31:23 | array to pointer conversion | tests.c:33:21:33:29 | buffer100 |
| tests.c:31:15:31:23 | array to pointer conversion | tests.c:33:21:33:29 | buffer100 indirection |
| tests.c:31:15:31:23 | buffer100 | tests.c:31:15:31:23 | buffer100 |
| tests.c:31:15:31:23 | buffer100 | tests.c:31:15:31:23 | buffer100 indirection |
| tests.c:31:15:31:23 | buffer100 | tests.c:33:21:33:29 | buffer100 |
| tests.c:31:15:31:23 | buffer100 | tests.c:33:21:33:29 | buffer100 indirection |
| tests.c:31:15:31:23 | scanf output argument | tests.c:33:21:33:29 | buffer100 |
| tests.c:31:15:31:23 | scanf output argument | tests.c:33:21:33:29 | buffer100 indirection |
| tests.c:33:21:33:29 | array to pointer conversion | tests.c:33:21:33:29 | buffer100 |
| tests.c:33:21:33:29 | array to pointer conversion | tests.c:33:21:33:29 | buffer100 indirection |
| tests.c:33:21:33:29 | buffer100 | tests.c:33:21:33:29 | buffer100 |
| tests.c:33:21:33:29 | buffer100 | tests.c:33:21:33:29 | buffer100 indirection |
| tests.c:34:10:34:13 | argv | tests.c:34:10:34:16 | (const char *)... |
| tests.c:34:10:34:13 | argv | tests.c:34:10:34:16 | (const char *)... |
| tests.c:34:10:34:13 | argv | tests.c:34:10:34:16 | access to array |
@@ -65,16 +35,11 @@ nodes
| tests.c:29:28:29:34 | access to array | semmle.label | access to array |
| tests.c:29:28:29:34 | access to array indirection | semmle.label | access to array indirection |
| tests.c:31:15:31:23 | array to pointer conversion | semmle.label | array to pointer conversion |
| tests.c:31:15:31:23 | array to pointer conversion | semmle.label | array to pointer conversion |
| tests.c:31:15:31:23 | buffer100 | semmle.label | buffer100 |
| tests.c:31:15:31:23 | buffer100 | semmle.label | buffer100 |
| tests.c:31:15:31:23 | buffer100 indirection | semmle.label | buffer100 indirection |
| tests.c:31:15:31:23 | scanf output argument | semmle.label | scanf output argument |
| tests.c:33:21:33:29 | array to pointer conversion | semmle.label | array to pointer conversion |
| tests.c:33:21:33:29 | array to pointer conversion | semmle.label | array to pointer conversion |
| tests.c:33:21:33:29 | buffer100 | semmle.label | buffer100 |
| tests.c:33:21:33:29 | buffer100 | semmle.label | buffer100 |
| tests.c:33:21:33:29 | buffer100 indirection | semmle.label | buffer100 indirection |
| tests.c:34:10:34:13 | argv | semmle.label | argv |
| tests.c:34:10:34:13 | argv | semmle.label | argv |
| tests.c:34:10:34:16 | (const char *)... | semmle.label | (const char *)... |
@@ -84,11 +49,6 @@ nodes
#select
| tests.c:28:3:28:9 | call to sprintf | tests.c:28:22:28:25 | argv | tests.c:28:22:28:28 | access to array | This 'call to sprintf' with input from $@ may overflow the destination. | tests.c:28:22:28:25 | argv | argv |
| tests.c:29:3:29:9 | call to sprintf | tests.c:29:28:29:31 | argv | tests.c:29:28:29:34 | access to array | This 'call to sprintf' with input from $@ may overflow the destination. | tests.c:29:28:29:31 | argv | argv |
| tests.c:31:15:31:23 | buffer100 | tests.c:28:22:28:25 | argv | tests.c:31:15:31:23 | buffer100 | This 'scanf string argument' with input from $@ may overflow the destination. | tests.c:28:22:28:25 | argv | argv |
| tests.c:31:15:31:23 | buffer100 | tests.c:29:28:29:31 | argv | tests.c:31:15:31:23 | buffer100 | This 'scanf string argument' with input from $@ may overflow the destination. | tests.c:29:28:29:31 | argv | argv |
| tests.c:31:15:31:23 | buffer100 | tests.c:31:15:31:23 | buffer100 | tests.c:31:15:31:23 | buffer100 | This 'scanf string argument' with input from $@ may overflow the destination. | tests.c:31:15:31:23 | buffer100 | buffer100 |
| tests.c:33:21:33:29 | buffer100 | tests.c:28:22:28:25 | argv | tests.c:33:21:33:29 | buffer100 | This 'scanf string argument' with input from $@ may overflow the destination. | tests.c:28:22:28:25 | argv | argv |
| tests.c:33:21:33:29 | buffer100 | tests.c:29:28:29:31 | argv | tests.c:33:21:33:29 | buffer100 | This 'scanf string argument' with input from $@ may overflow the destination. | tests.c:29:28:29:31 | argv | argv |
| tests.c:33:21:33:29 | buffer100 | tests.c:31:15:31:23 | buffer100 | tests.c:33:21:33:29 | buffer100 | This 'scanf string argument' with input from $@ may overflow the destination. | tests.c:31:15:31:23 | buffer100 | buffer100 |
| tests.c:33:21:33:29 | buffer100 | tests.c:33:21:33:29 | buffer100 | tests.c:33:21:33:29 | buffer100 | This 'scanf string argument' with input from $@ may overflow the destination. | tests.c:33:21:33:29 | buffer100 | buffer100 |
| tests.c:34:25:34:33 | buffer100 | tests.c:34:10:34:13 | argv | tests.c:34:10:34:16 | access to array | This 'sscanf string argument' with input from $@ may overflow the destination. | tests.c:34:10:34:13 | argv | argv |

2
cpp/ql/test/query-tests/Security/CWE/CWE-311/semmle/tests/CleartextBufferWrite.expected
View File

@@ -6,5 +6,5 @@ nodes
| test.cpp:58:25:58:29 | input | semmle.label | input |
subpaths
#select
| test2.cpp:110:3:110:6 | call to gets | test2.cpp:110:3:110:6 | call to gets | test2.cpp:110:3:110:6 | call to gets | This write into buffer 'password' may contain unencrypted data from $@. | test2.cpp:110:3:110:6 | call to gets | user input (String read by gets) |
| test2.cpp:110:3:110:6 | call to gets | test2.cpp:110:3:110:6 | call to gets | test2.cpp:110:3:110:6 | call to gets | This write into buffer 'password' may contain unencrypted data from $@. | test2.cpp:110:3:110:6 | call to gets | user input (string read by gets) |
| test.cpp:58:3:58:9 | call to sprintf | test.cpp:54:17:54:20 | argv | test.cpp:58:25:58:29 | input | This write into buffer 'passwd' may contain unencrypted data from $@. | test.cpp:54:17:54:20 | argv | user input (a command-line argument) |

2
csharp/autobuilder/Semmle.Autobuild.CSharp/Semmle.Autobuild.CSharp.csproj
View File

@@ -15,7 +15,7 @@
</ItemGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Build" Version="17.3.2" />
<PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
<PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\extractor\Semmle.Util\Semmle.Util.csproj" />

2
csharp/ql/lib/ext/generated/dotnet_runtime.model.yml
View File

@@ -10195,7 +10195,7 @@ extensions:
- addsTo:
pack: codeql/csharp-all
extensible: extNegativeSummaryModel
extensible: extNeutralModel
data:
- ["AssemblyStripper", "AssemblyStripper", "StripAssembly", "(System.String,System.String)", "generated"]
- ["Generators", "EventSourceGenerator", "Execute", "(Microsoft.CodeAnalysis.GeneratorExecutionContext)", "generated"]

24
csharp/ql/lib/semmle/code/csharp/commons/Assertions.qll
View File

@@ -368,40 +368,32 @@ private Stmt getAnAssertingStmt(Assertion a) {
}
/** A method that forwards to a Boolean assertion method. */
class ForwarderBooleanAssertMethod extends BooleanAssertMethod {
private ForwarderAssertMethod forwarder;
class ForwarderBooleanAssertMethod extends BooleanAssertMethod instanceof ForwarderAssertMethod {
private BooleanAssertMethod underlying;
ForwarderBooleanAssertMethod() {
forwarder = this and
underlying = forwarder.getUnderlyingAssertMethod()
}
ForwarderBooleanAssertMethod() { underlying = super.getUnderlyingAssertMethod() }
override int getAnAssertionIndex(boolean b) {
forwarder.getAForwarderAssertionIndex(result) = underlying.getAnAssertionIndex(b)
super.getAForwarderAssertionIndex(result) = underlying.getAnAssertionIndex(b)
}
override AssertionFailure getAssertionFailure(int i) {
result = underlying.getAssertionFailure(forwarder.getAForwarderAssertionIndex(i))
result = underlying.getAssertionFailure(super.getAForwarderAssertionIndex(i))
}
}
/** A method that forwards to a nullness assertion method. */
class ForwarderNullnessAssertMethod extends NullnessAssertMethod {
private ForwarderAssertMethod forwarder;
class ForwarderNullnessAssertMethod extends NullnessAssertMethod instanceof ForwarderAssertMethod {
private NullnessAssertMethod underlying;
ForwarderNullnessAssertMethod() {
forwarder = this and
underlying = forwarder.getUnderlyingAssertMethod()
}
ForwarderNullnessAssertMethod() { underlying = super.getUnderlyingAssertMethod() }
override int getAnAssertionIndex(boolean b) {
forwarder.getAForwarderAssertionIndex(result) = underlying.getAnAssertionIndex(b)
super.getAForwarderAssertionIndex(result) = underlying.getAnAssertionIndex(b)
}
override AssertionFailure getAssertionFailure(int i) {
result = underlying.getAssertionFailure(forwarder.getAForwarderAssertionIndex(i))
result = underlying.getAssertionFailure(super.getAForwarderAssertionIndex(i))
}
}

51
csharp/ql/lib/semmle/code/csharp/dataflow/ExternalFlow.qll
View File

@@ -11,9 +11,9 @@
* `namespace; type; subtypes; name; signature; ext; input; kind; provenance`
* - Summaries:
* `namespace; type; subtypes; name; signature; ext; input; output; kind; provenance`
* - Negative Summaries:
* - Neutrals:
* `namespace; type; name; signature; provenance`
* A negative summary is used to indicate that there is no flow via a callable.
* A neutral is used to indicate that there is no flow via a callable.
*
* The interpretation of a row is similar to API-graphs with a left-to-right
* reading.
@@ -132,30 +132,12 @@ private class SummaryModelCsvInternal extends Unit {
abstract predicate row(string row);
}
/**
* DEPRECATED: Define negative summary models as data extensions instead.
*
* A unit class for adding additional negative summary model rows.
*
* Extend this class to add additional negative summary definitions.
*/
deprecated class NegativeSummaryModelCsv = NegativeSummaryModelCsvInternal;
private class NegativeSummaryModelCsvInternal extends Unit {
/** Holds if `row` specifies a negative summary definition. */
abstract predicate row(string row);
}
private predicate sourceModelInternal(string row) { any(SourceModelCsvInternal s).row(row) }
private predicate summaryModelInternal(string row) { any(SummaryModelCsvInternal s).row(row) }
private predicate sinkModelInternal(string row) { any(SinkModelCsvInternal s).row(row) }
private predicate negativeSummaryModelInternal(string row) {
any(NegativeSummaryModelCsvInternal s).row(row)
}
/**
* Holds if a source model exists for the given parameters.
*/
@@ -243,25 +225,16 @@ predicate summaryModel(
extSummaryModel(namespace, type, subtypes, name, signature, ext, input, output, kind, provenance)
}
/** Holds if a summary model exists indicating there is no flow for the given parameters. */
extensible predicate extNegativeSummaryModel(
/** Holds if a model exists indicating there is no flow for the given parameters. */
extensible predicate extNeutralModel(
string namespace, string type, string name, string signature, string provenance
);
/** Holds if a summary model exists indicating there is no flow for the given parameters. */
predicate negativeSummaryModel(
/** Holds if a model exists indicating there is no flow for the given parameters. */
predicate neutralModel(
string namespace, string type, string name, string signature, string provenance
) {
exists(string row |
negativeSummaryModelInternal(row) and
row.splitAt(";", 0) = namespace and
row.splitAt(";", 1) = type and
row.splitAt(";", 2) = name and
row.splitAt(";", 3) = signature and
row.splitAt(";", 4) = provenance
)
or
extNegativeSummaryModel(namespace, type, name, signature, provenance)
extNeutralModel(namespace, type, name, signature, provenance)
}
private predicate relevantNamespace(string namespace) {
@@ -393,8 +366,6 @@ module ModelValidation {
sinkModelInternal(row) and expect = 9 and pred = "sink"
or
summaryModelInternal(row) and expect = 10 and pred = "summary"
or
negativeSummaryModelInternal(row) and expect = 5 and pred = "negative summary"
|
exists(int cols |
cols = 1 + max(int n | exists(row.splitAt(";", n))) and
@@ -418,9 +389,9 @@ module ModelValidation {
summaryModel(namespace, type, _, name, signature, ext, _, _, _, provenance) and
pred = "summary"
or
negativeSummaryModel(namespace, type, name, signature, provenance) and
neutralModel(namespace, type, name, signature, provenance) and
ext = "" and
pred = "negative summary"
pred = "neutral"
|
not namespace.regexpMatch("[a-zA-Z0-9_\\.]+") and
result = "Dubious namespace \"" + namespace + "\" in " + pred + " model."
@@ -461,7 +432,7 @@ private predicate elementSpec(
or
summaryModel(namespace, type, subtypes, name, signature, ext, _, _, _, _)
or
negativeSummaryModel(namespace, type, name, signature, _) and ext = "" and subtypes = false
neutralModel(namespace, type, name, signature, _) and ext = "" and subtypes = false
}
private predicate elementSpec(
@@ -595,7 +566,7 @@ private Element interpretElement0(
)
}
/** Gets the source/sink/summary/negativesummary element corresponding to the supplied parameters. */
/** Gets the source/sink/summary/neutral element corresponding to the supplied parameters. */
Element interpretElement(
string namespace, string type, boolean subtypes, string name, string signature, string ext
) {

14
csharp/ql/lib/semmle/code/csharp/dataflow/internal/ContentDataFlow.qll
View File

@@ -222,18 +222,14 @@ module ContentDataFlow {
)
}
private class ConfigurationAdapter extends DF::Configuration {
private Configuration c;
ConfigurationAdapter() { this = c }
private class ConfigurationAdapter extends DF::Configuration instanceof Configuration {
final override predicate isSource(Node source, DF::FlowState state) {
c.isSource(source) and
Configuration.super.isSource(source) and
state.(InitState).decode(true)
}
final override predicate isSink(Node sink, DF::FlowState state) {
c.isSink(sink) and
Configuration.super.isSink(sink) and
(
state instanceof InitState or
state instanceof StoreState or
@@ -249,9 +245,9 @@ module ContentDataFlow {
additionalStep(node1, state1, node2, state2, this)
}
final override predicate isBarrier(Node node) { c.isBarrier(node) }
final override predicate isBarrier(Node node) { Configuration.super.isBarrier(node) }
final override FlowFeature getAFeature() { result = c.getAFeature() }
final override FlowFeature getAFeature() { result = Configuration.super.getAFeature() }
// needed to record reads/stores inside summarized callables
final override predicate includeHiddenNodes() { any() }

4
csharp/ql/lib/semmle/code/csharp/dataflow/internal/DataFlowPrivate.qll
View File

@@ -2321,8 +2321,8 @@ module Csv {
)
}
/** Computes the first 4 columns for negative CSV rows of `c`. */
string asPartialNegativeModel(DotNet::Callable c) {
/** Computes the first 4 columns for neutral CSV rows of `c`. */
string asPartialNeutralModel(DotNet::Callable c) {
exists(string namespace, string type, string name, string parameters |
partialModel(c, namespace, type, name, parameters) and
result =

28
csharp/ql/lib/semmle/code/csharp/dataflow/internal/FlowSummaryImpl.qll
View File

@@ -246,14 +246,14 @@ module Public {
predicate isAutoGenerated() { none() }
}
/** A callable with a flow summary stating there is no flow via the callable. */
class NegativeSummarizedCallable extends SummarizedCallableBase {
NegativeSummarizedCallable() { negativeSummaryElement(this, _) }
/** A callable where there is no flow via the callable. */
class NeutralCallable extends SummarizedCallableBase {
NeutralCallable() { neutralElement(this, _) }
/**
* Holds if the negative summary is auto generated.
* Holds if the neutral is auto generated.
*/
predicate isAutoGenerated() { negativeSummaryElement(this, true) }
predicate isAutoGenerated() { neutralElement(this, true) }
}
}
@@ -1161,9 +1161,9 @@ module Private {
string toString() { result = super.toString() }
}
/** A flow summary to include in the `negativeSummary/1` query predicate. */
abstract class RelevantNegativeSummarizedCallable instanceof NegativeSummarizedCallable {
/** Gets the string representation of this callable used by `summary/1`. */
/** A model to include in the `neutral/1` query predicate. */
abstract class RelevantNeutralCallable instanceof NeutralCallable {
/** Gets the string representation of this callable used by `neutral/1`. */
abstract string getCallableCsv();
string toString() { result = super.toString() }
@@ -1180,13 +1180,13 @@ module Private {
if c.isAutoGenerated() then result = "generated" else result = "manual"
}
private string renderProvenanceNegative(NegativeSummarizedCallable c) {
private string renderProvenanceNeutral(NeutralCallable c) {
if c.isAutoGenerated() then result = "generated" else result = "manual"
}
/**
* A query predicate for outputting flow summaries in semi-colon separated format in QL tests.
* The syntax is: "namespace;type;overrides;name;signature;ext;inputspec;outputspec;kind;provenance"",
* The syntax is: "namespace;type;overrides;name;signature;ext;inputspec;outputspec;kind;provenance",
* ext is hardcoded to empty.
*/
query predicate summary(string csv) {
@@ -1205,14 +1205,14 @@ module Private {
}
/**
* Holds if a negative flow summary `csv` exists (semi-colon separated format). Used for testing purposes.
* Holds if a neutral model `csv` exists (semi-colon separated format). Used for testing purposes.
* The syntax is: "namespace;type;name;signature;provenance"",
*/
query predicate negativeSummary(string csv) {
exists(RelevantNegativeSummarizedCallable c |
query predicate neutral(string csv) {
exists(RelevantNeutralCallable c |
csv =
c.getCallableCsv() // Callable information
+ renderProvenanceNegative(c) // provenance
+ renderProvenanceNeutral(c) // provenance
)
}
}

8
csharp/ql/lib/semmle/code/csharp/dataflow/internal/FlowSummaryImplSpecific.qll
View File

@@ -121,12 +121,12 @@ predicate summaryElement(Callable c, string input, string output, string kind, b
}
/**
* Holds if a negative flow summary exists for `c`, which means that there is no
* flow through `c`. The flag `generated` states whether the summary is autogenerated.
* Holds if a neutral model exists for `c`, which means that there is no
* flow through `c`. The flag `generated` states whether the neutral model is autogenerated.
*/
predicate negativeSummaryElement(Callable c, boolean generated) {
predicate neutralElement(Callable c, boolean generated) {
exists(string namespace, string type, string name, string signature, string provenance |
negativeSummaryModel(namespace, type, name, signature, provenance) and
neutralModel(namespace, type, name, signature, provenance) and
generated = isGenerated(provenance) and
c = interpretElement(namespace, type, false, name, signature, "")
)

4
csharp/ql/lib/semmle/code/csharp/frameworks/System.qll
View File

@@ -257,9 +257,7 @@ class SystemNullReferenceExceptionClass extends SystemClass {
}
/** The `System.Object` class. */
class SystemObjectClass extends SystemClass {
SystemObjectClass() { this instanceof ObjectType }
class SystemObjectClass extends SystemClass instanceof ObjectType {
/** Gets the `Equals(object)` method. */
Method getEqualsMethod() {
result.getDeclaringType() = this and

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/CleartextStorageQuery.qll
View File

@@ -56,6 +56,4 @@ class ProtectSanitizer extends Sanitizer {
/**
* An external location sink.
*/
class ExternalSink extends Sink {
ExternalSink() { this instanceof ExternalLocationSink }
}
class ExternalSink extends Sink instanceof ExternalLocationSink { }

8
csharp/ql/lib/semmle/code/csharp/security/dataflow/CodeInjectionQuery.qll
View File

@@ -38,14 +38,10 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/** A source of local user input. */
class LocalSource extends Source {
LocalSource() { this instanceof LocalFlowSource }
}
class LocalSource extends Source instanceof LocalFlowSource { }
private class SimpleTypeSanitizer extends Sanitizer, SimpleTypeSanitizedExpr { }

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/CommandInjectionQuery.qll
View File

@@ -36,9 +36,7 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/**
* A sink in `System.Diagnostic.Process` or its related classes.

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/ConditionalBypassQuery.qll
View File

@@ -43,9 +43,7 @@ class Configuration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/** The result of a reverse dns may be user-controlled. */
class ReverseDnsSource extends Source {

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/ExposureOfPrivateInformationQuery.qll
View File

@@ -39,6 +39,4 @@ private class PrivateDataSource extends Source {
PrivateDataSource() { this.getExpr() instanceof PrivateDataExpr }
}
private class ExternalLocation extends Sink {
ExternalLocation() { this instanceof ExternalLocationSink }
}
private class ExternalLocation extends Sink instanceof ExternalLocationSink { }

3
csharp/ql/lib/semmle/code/csharp/security/dataflow/ExternalAPIsQuery.qll
View File

@@ -17,8 +17,7 @@ abstract class SafeExternalApiCallable extends Callable { }
/** DEPRECATED: Alias for SafeExternalApiCallable */
deprecated class SafeExternalAPICallable = SafeExternalApiCallable;
private class SummarizedCallableSafe extends SafeExternalApiCallable {
SummarizedCallableSafe() { this instanceof SummarizedCallable }
private class SummarizedCallableSafe extends SafeExternalApiCallable instanceof SummarizedCallable {
}
/** The default set of "safe" external APIs. */

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/LDAPInjectionQuery.qll
View File

@@ -38,9 +38,7 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/**
* An argument that sets the `Path` property of a `DirectoryEntry` object that is a sink for LDAP

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/LogForgingQuery.qll
View File

@@ -38,9 +38,7 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
private class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
private class RemoteSource extends Source instanceof RemoteFlowSource { }
private class HtmlSanitizer extends Sanitizer {
HtmlSanitizer() { this.asExpr() instanceof HtmlSanitizedExpr }

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/MissingXMLValidationQuery.qll
View File

@@ -43,9 +43,7 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/**
* The input argument to a call to `XmlReader.Create` where the input will not be validated against

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/ReDoSQuery.qll
View File

@@ -38,9 +38,7 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/**
* An expression that represents a regular expression with potential exponential behavior.

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/RegexInjectionQuery.qll
View File

@@ -37,9 +37,7 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/**
* A `pattern` argument to a construction of a `Regex`.

8
csharp/ql/lib/semmle/code/csharp/security/dataflow/ResourceInjectionQuery.qll
View File

@@ -37,14 +37,10 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/** A source of local user input. */
class LocalSource extends Source {
LocalSource() { this instanceof LocalFlowSource }
}
class LocalSource extends Source instanceof LocalFlowSource { }
/** An argument to the `ConnectionString` property on a data connection class. */
class SqlConnectionStringSink extends Sink {

8
csharp/ql/lib/semmle/code/csharp/security/dataflow/SqlInjectionQuery.qll
View File

@@ -38,14 +38,10 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/** A source of local user input. */
class LocalSource extends Source {
LocalSource() { this instanceof LocalFlowSource }
}
class LocalSource extends Source instanceof LocalFlowSource { }
/** An SQL expression passed to an API call that executes SQL. */
class SqlInjectionExprSink extends Sink {

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/TaintedPathQuery.qll
View File

@@ -39,9 +39,7 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/**
* A path argument to a `File` method call.

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/UnsafeDeserializationQuery.qll
View File

@@ -44,9 +44,7 @@ abstract private class ConstructorOrStaticMethodSink extends Sink { }
*/
abstract class Sanitizer extends DataFlow::Node { }
private class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
private class RemoteSource extends Source instanceof RemoteFlowSource { }
/**
* User input to object method call deserialization flow tracking.

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/UrlRedirectQuery.qll
View File

@@ -50,9 +50,7 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/**
* A URL argument to a call to `HttpResponse.Redirect()` or `Controller.Redirect()`, that is a

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/XMLEntityInjectionQuery.qll
View File

@@ -14,9 +14,7 @@ private import semmle.code.csharp.security.Sanitizers
*/
abstract class Source extends DataFlow::Node { }
private class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
private class RemoteSource extends Source instanceof RemoteFlowSource { }
/**
* A data flow sink for untrusted user input used in XML processing.

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/XPathInjectionQuery.qll
View File

@@ -37,9 +37,7 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/** The `xpath` argument to an `XPathExpression.Compile(..)` call. */
class XPathExpressionCompileSink extends Sink {

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/XSSQuery.qll
View File

@@ -149,9 +149,7 @@ class TaintTrackingConfiguration extends TaintTracking2::Configuration {
}
/** A source of remote user input. */
private class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
private class RemoteSource extends Source instanceof RemoteFlowSource { }
private class SimpleTypeSanitizer extends Sanitizer, SimpleTypeSanitizedExpr { }

4
csharp/ql/lib/semmle/code/csharp/security/dataflow/XSSSinks.qll
View File

@@ -27,9 +27,7 @@ private class ExternalXssSink extends Sink {
ExternalXssSink() { sinkNode(this, "xss") }
}
private class HtmlSinkSink extends Sink {
HtmlSinkSink() { this instanceof HtmlSink }
private class HtmlSinkSink extends Sink instanceof HtmlSink {
override string explanation() {
this instanceof WebPageWriteLiteralSink and
result = "System.Web.WebPages.WebPage.WriteLiteral() method"

6
csharp/ql/src/AlertSuppression.ql
View File

@@ -44,9 +44,7 @@ class SuppressionComment extends CommentLine {
/**
* The scope of an alert suppression comment.
*/
class SuppressionScope extends @commentline {
SuppressionScope() { this instanceof SuppressionComment }
class SuppressionScope extends @commentline instanceof SuppressionComment {
/** Gets a suppression comment with this scope. */
SuppressionComment getSuppressionComment() { result = this }
@@ -60,7 +58,7 @@ class SuppressionScope extends @commentline {
predicate hasLocationInfo(
string filepath, int startline, int startcolumn, int endline, int endcolumn
) {
this.(SuppressionComment).covers(filepath, startline, startcolumn, endline, endcolumn)
super.covers(filepath, startline, startcolumn, endline, endcolumn)
}
/** Gets a textual representation of this element. */

4
csharp/ql/src/Telemetry/SupportedExternalApis.ql
View File

@@ -12,8 +12,8 @@ private import semmle.code.csharp.dataflow.internal.FlowSummaryImpl as FlowSumma
private import ExternalApi
private predicate relevant(ExternalApi api) {
api.isSupported() or
api instanceof FlowSummaryImpl::Public::NegativeSummarizedCallable
api.isSupported() or
api instanceof FlowSummaryImpl::Public::NeutralCallable
}
from string info, int usages

2
csharp/ql/src/Telemetry/UnsupportedExternalAPIs.ql
View File

@@ -13,7 +13,7 @@ private import ExternalApi
private predicate relevant(ExternalApi api) {
not api.isSupported() and
not api instanceof FlowSummaryImpl::Public::NegativeSummarizedCallable
not api instanceof FlowSummaryImpl::Public::NeutralCallable
}
from string info, int usages

4
csharp/ql/src/experimental/CWE-099/TaintedWebClientLib.qll
View File

@@ -51,9 +51,7 @@ class TaintTrackingConfiguration extends TaintTracking::Configuration {
}
/** A source of remote user input. */
class RemoteSource extends Source {
RemoteSource() { this instanceof RemoteFlowSource }
}
class RemoteSource extends Source instanceof RemoteFlowSource { }
/**
* A path argument to a `WebClient` method call that has an address argument.

4
csharp/ql/src/experimental/CWE-918/RequestForgery.qll
View File

@@ -58,9 +58,7 @@ module RequestForgery {
* A remote data flow source taken as a source
* for Server Side Request Forgery(SSRF) Vulnerabilities.
*/
private class RemoteFlowSourceAsSource extends Source {
RemoteFlowSourceAsSource() { this instanceof RemoteFlowSource }
}
private class RemoteFlowSourceAsSource extends Source instanceof RemoteFlowSource { }
/**
* An url argument to a `HttpRequestMessage` constructor call

2
csharp/ql/src/meta/frameworks/UnsupportedExternalAPIs.ql
View File

@@ -17,5 +17,5 @@ from Call c, ExternalApi api
where
c.getTarget().getUnboundDeclaration() = api and
not api.isSupported() and
not api instanceof FlowSummaryImpl::Public::NegativeSummarizedCallable
not api instanceof FlowSummaryImpl::Public::NeutralCallable
select c, "Call to unsupported external API $@.", api, api.toString()

6
csharp/ql/src/utils/model-generator/CaptureNegativeSummaryModels.ql → csharp/ql/src/utils/model-generator/CaptureNeutralModels.ql
View File

@@ -1,8 +1,8 @@
/**
* @name Capture negative summary models.
* @description Finds negative summary models to be used by other queries.
* @name Capture neutral models.
* @description Finds neutral models to be used by other queries.
* @kind diagnostic
* @id cs/utils/model-generator/negative-summary-models
* @id cs/utils/model-generator/neutral-models
* @tags model-generator
*/

8
csharp/ql/src/utils/modelconverter/ExtractNegativeSummaries.ql → csharp/ql/src/utils/modelconverter/ExtractNeutrals.ql
View File

@@ -1,7 +1,7 @@
/**
* @name Extract MaD negative summary model rows.
* @description This extracts the Models as data negative summary model rows.
* @id csharp/utils/modelconverter/generate-data-extensions-negative-summary
* @name Extract MaD neutral model rows.
* @description This extracts the Models as data neutral model rows.
* @id csharp/utils/modelconverter/generate-data-extensions-neutral
*/
import csharp
@@ -9,6 +9,6 @@ import semmle.code.csharp.dataflow.ExternalFlow
from string package, string type, string name, string signature, string provenance
where
negativeSummaryModel(package, type, name, signature, provenance) and
neutralModel(package, type, name, signature, provenance) and
provenance != "generated"
select package, type, name, signature, provenance order by package, type, name, signature

4
csharp/ql/src/utils/modelgenerator/internal/CaptureModels.qll
View File

@@ -58,9 +58,7 @@ private string asSummaryModel(TargetApiSpecific api, string input, string output
+ "generated"
}
string asNegativeSummaryModel(TargetApiSpecific api) {
result = asPartialNegativeModel(api) + "generated"
}
string asNeutralModel(TargetApiSpecific api) { result = asPartialNeutralModel(api) + "generated" }
/**
* Gets the value summary model for `api` with `input` and `output`.

2
csharp/ql/src/utils/modelgenerator/internal/CaptureModelsSpecific.qll
View File

@@ -68,7 +68,7 @@ class TargetApiSpecific extends DotNet::Callable {
predicate asPartialModel = DataFlowPrivate::Csv::asPartialModel/1;
predicate asPartialNegativeModel = DataFlowPrivate::Csv::asPartialNegativeModel/1;
predicate asPartialNeutralModel = DataFlowPrivate::Csv::asPartialNeutralModel/1;
/**
* Holds if `t` is a type that is generally used for bulk data in collection types.

6
csharp/ql/src/utils/modelgenerator/internal/CaptureSummaryFlow.qll
View File

@@ -85,10 +85,10 @@ string captureFlow(DataFlowTargetApi api) {
}
/**
* Gets the negative summary for `api`, if any.
* A negative summary is generated, if there does not exist any positive flow.
* Gets the neutral model for `api`, if any.
* A neutral model is generated, if there does not exist summary model.
*/
string captureNoFlow(DataFlowTargetApi api) {
not exists(captureFlow(api)) and
result = asNegativeSummaryModel(api)
result = asNeutralModel(api)
}

10
csharp/ql/test/library-tests/dataflow/global/TaintTracking.ql
View File

@@ -1,14 +1,10 @@
import csharp
import Common
class TTConfig extends TaintTracking::Configuration {
Config c;
class TTConfig extends TaintTracking::Configuration instanceof Config {
override predicate isSource(DataFlow::Node source) { Config.super.isSource(source) }
TTConfig() { this = c }
override predicate isSource(DataFlow::Node source) { c.isSource(source) }
override predicate isSink(DataFlow::Node sink) { c.isSink(sink) }
override predicate isSink(DataFlow::Node sink) { Config.super.isSink(sink) }
}
from TTConfig c, DataFlow::Node source, DataFlow::Node sink

10
csharp/ql/test/library-tests/dataflow/global/TaintTrackingPath.ql
View File

@@ -6,14 +6,10 @@ import csharp
import Common
import DataFlow::PathGraph
class TTConfig extends TaintTracking::Configuration {
Config c;
class TTConfig extends TaintTracking::Configuration instanceof Config {
override predicate isSource(DataFlow::Node source) { Config.super.isSource(source) }
TTConfig() { this = c }
override predicate isSource(DataFlow::Node source) { c.isSource(source) }
override predicate isSink(DataFlow::Node sink) { c.isSink(sink) }
override predicate isSink(DataFlow::Node sink) { Config.super.isSink(sink) }
}
from TTConfig c, DataFlow::PathNode source, DataFlow::PathNode sink, string s

2
csharp/ql/test/library-tests/dataflow/library/FlowSummaries.expected
View File

@@ -11928,7 +11928,7 @@ summary
| System;ValueTuple<>;false;ToString;();;Argument[this];ReturnValue;taint;generated |
| System;ValueTuple<>;false;ValueTuple;(T1);;Argument[0];Argument[this].Field[System.ValueTuple<>.Item1];value;manual |
| System;ValueTuple<>;false;get_Item;(System.Int32);;Argument[this].Field[System.ValueTuple<>.Item1];ReturnValue;value;manual |
negativeSummary
neutral
| Microsoft.CSharp.RuntimeBinder;CSharpArgumentInfo;Create;(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags,System.String);generated |
| Microsoft.CSharp.RuntimeBinder;RuntimeBinderException;RuntimeBinderException;();generated |
| Microsoft.CSharp.RuntimeBinder;RuntimeBinderException;RuntimeBinderException;(System.Runtime.Serialization.SerializationInfo,System.Runtime.Serialization.StreamingContext);generated |

8
csharp/ql/test/library-tests/dataflow/library/FlowSummaries.ql
View File

@@ -6,11 +6,7 @@ private class IncludeAllSummarizedCallable extends IncludeSummarizedCallable {
IncludeAllSummarizedCallable() { exists(this) }
}
private class IncludeNegativeSummarizedCallable extends RelevantNegativeSummarizedCallable {
IncludeNegativeSummarizedCallable() {
this instanceof FlowSummaryImpl::Public::NegativeSummarizedCallable
}
private class IncludeNeutralCallable extends RelevantNeutralCallable instanceof FlowSummaryImpl::Public::NeutralCallable {
/** Gets a string representing the callable in semi-colon separated format for use in flow summaries. */
final override string getCallableCsv() { result = Csv::asPartialNegativeModel(this) }
final override string getCallableCsv() { result = Csv::asPartialNeutralModel(this) }
}

2
csharp/ql/test/library-tests/dataflow/library/FlowSummariesFiltered.expected
View File

@@ -10262,4 +10262,4 @@ summary
| System;ValueTuple<>;false;ToString;();;Argument[this];ReturnValue;taint;generated |
| System;ValueTuple<>;false;ValueTuple;(T1);;Argument[0];Argument[this].Field[System.ValueTuple<>.Item1];value;manual |
| System;ValueTuple<>;false;get_Item;(System.Int32);;Argument[this].Field[System.ValueTuple<>.Item1];ReturnValue;value;manual |
negativeSummary
neutral

6
csharp/ql/test/library-tests/dataflow/library/FlowSummariesFiltered.ql
View File

@@ -2,9 +2,7 @@ import shared.FlowSummaries
private import semmle.code.csharp.dataflow.internal.DataFlowPrivate::Csv
private import semmle.code.csharp.dataflow.ExternalFlow
class IncludeFilteredSummarizedCallable extends IncludeSummarizedCallable {
IncludeFilteredSummarizedCallable() { this instanceof SummarizedCallable }
class IncludeFilteredSummarizedCallable extends IncludeSummarizedCallable instanceof SummarizedCallable {
/**
* Holds if flow is propagated between `input` and `output` and
* if there is no summary for a callable in a `base` class or interface
@@ -13,7 +11,7 @@ class IncludeFilteredSummarizedCallable extends IncludeSummarizedCallable {
override predicate relevantSummary(
SummaryComponentStack input, SummaryComponentStack output, boolean preservesValue
) {
this.(SummarizedCallable).propagatesFlow(input, output, preservesValue) and
super.propagatesFlow(input, output, preservesValue) and
not exists(IncludeSummarizedCallable rsc |
isBaseCallableOrPrototype(rsc) and
rsc.(SummarizedCallable).propagatesFlow(input, output, preservesValue) and

2
csharp/ql/test/library-tests/frameworks/EntityFramework/FlowSummaries.expected
View File

@@ -131,7 +131,7 @@ summary
| System.Data.Entity;DbSet<>;false;AttachRange;(System.Collections.Generic.IEnumerable<T>);;Argument[0].Element;Argument[this].Element;value;manual |
| System.Data.Entity;DbSet<>;false;Update;(T);;Argument[0];Argument[this].Element;value;manual |
| System.Data.Entity;DbSet<>;false;UpdateRange;(System.Collections.Generic.IEnumerable<T>);;Argument[0].Element;Argument[this].Element;value;manual |
negativeSummary
neutral
sourceNode
sinkNode
| EntityFrameworkCore.cs:72:36:72:40 | "sql" | sql |

3
csharp/ql/test/library-tests/frameworks/EntityFramework/FlowSummaries.ql
View File

@@ -2,8 +2,7 @@ import semmle.code.csharp.frameworks.EntityFramework::EntityFramework
import shared.FlowSummaries
import semmle.code.csharp.dataflow.ExternalFlow as ExternalFlow
private class IncludeEFSummarizedCallable extends IncludeSummarizedCallable {
IncludeEFSummarizedCallable() { this instanceof EFSummarizedCallable }
private class IncludeEFSummarizedCallable extends IncludeSummarizedCallable instanceof EFSummarizedCallable {
}
query predicate sourceNode(DataFlow::Node node, string kind) {

1
csharp/ql/test/utils/model-generator/dataflow/CaptureNegativeSummaryModels.qlref
View File

@@ -1 +0,0 @@
utils/model-generator/CaptureNegativeSummaryModels.ql

0
csharp/ql/test/utils/model-generator/dataflow/CaptureNegativeSummaryModels.expected → csharp/ql/test/utils/model-generator/dataflow/CaptureNeutralModels.expected
View File

1
csharp/ql/test/utils/model-generator/dataflow/CaptureNeutralModels.qlref Normal file
View File

@@ -0,0 +1 @@
utils/model-generator/CaptureNeutralModels.ql

7
docs/codeql/README.rst
View File

@@ -42,9 +42,10 @@ For more information, see
Building and previewing the CodeQL documentation
************************************************
To build and preview the documentation and training presentations locally, you need to
install Sphinx 1.7.9. More recent versions of Sphinx do not work with hieroglyph,
the Sphinx extension that we use to generate HTML slides, as explained below.
To build and preview the documentation and training presentations locally, you need to
install Sphinx 1.7.9 using Python 2 (for example: `pip install sphinx==1.7.9`).
More recent versions of Sphinx do not work with hieroglyph,
the Sphinx extension that we use to generate HTML slides, as explained below.
For installation options, see https://github.com/sphinx-doc/sphinx.

2
docs/codeql/ql-training/query-examples/cpp/bad-overflow-guard-1.ql
View File

@@ -5,4 +5,4 @@ where
a.getAnOperand() = v.getAnAccess() and
cmp.getAnOperand() = a and
cmp.getAnOperand() = v.getAnAccess()
select cmp, "Overflow check."
select cmp, "Overflow check."

2
docs/codeql/ql-training/query-examples/cpp/bad-overflow-guard-2.ql
View File

@@ -6,4 +6,4 @@ where
cmp.getAnOperand() = a and
cmp.getAnOperand() = v.getAnAccess() and
forall(Expr op | op = a.getAnOperand() | isSmall(op))
select cmp, "Bad overflow check."
select cmp, "Bad overflow check."

2
docs/codeql/ql-training/query-examples/cpp/bad-overflow-guard-3.ql
View File

@@ -9,4 +9,4 @@ where
cmp.getAnOperand() = v.getAnAccess() and
forall(Expr op | op = a.getAnOperand() | isSmall(op)) and
not isSmall(a.getExplicitlyConverted())
select cmp, "Bad overflow check"
select cmp, "Bad overflow check"

11
docs/codeql/ql-training/query-examples/cpp/control-flow-cpp-1.ql
View File

@@ -1,8 +1,9 @@
import cpp
from FunctionCall alloc, FunctionCall free, LocalScopeVariable v
where allocationCall(alloc)
and alloc = v.getAnAssignedValue()
and freeCall(free, v.getAnAccess())
and alloc.getASuccessor+() = free
where
allocationCall(alloc) and
alloc = v.getAnAssignedValue() and
freeCall(free, v.getAnAccess()) and
alloc.getASuccessor+() = free
select alloc, free

13
docs/codeql/ql-training/query-examples/cpp/control-flow-cpp-2.ql
View File

@@ -1,8 +1,9 @@
import cpp
from FunctionCall free, LocalScopeVariable v, VariableAccess u
where freeCall(free, v.getAnAccess())
and u = v.getAnAccess()
and u.isRValue()
and free.getASuccessor+() = u
select free, u
where
freeCall(free, v.getAnAccess()) and
u = v.getAnAccess() and
u.isRValue() and
free.getASuccessor+() = u
select free, u

2
docs/codeql/ql-training/query-examples/cpp/control-flow-cpp-3.ql
View File

@@ -7,4 +7,4 @@ where
use = lv.getAnAccess() and
use = def.getASuccessor+()
)
select lv, def
select lv, def

2
docs/codeql/ql-training/query-examples/cpp/control-flow-cpp-4.ql
View File

@@ -7,4 +7,4 @@ predicate isReachable(BasicBlock bb) {
from BasicBlock bb
where not isReachable(bb)
select bb
select bb

16
docs/codeql/ql-training/query-examples/cpp/control-flow-cpp-5.ql
View File

@@ -1,10 +1,10 @@
import cpp
from ExprCall c, PointerDereferenceExpr deref, VariableAccess va,
Access fnacc
where c.getLocation().getFile().getBaseName() = "cjpeg.c" and
c.getLocation().getStartLine() = 640 and
deref = c.getExpr() and
va = deref.getOperand() and
fnacc = va.getTarget().getAnAssignedValue()
select c, fnacc.getTarget()
from ExprCall c, PointerDereferenceExpr deref, VariableAccess va, Access fnacc
where
c.getLocation().getFile().getBaseName() = "cjpeg.c" and
c.getLocation().getStartLine() = 640 and
deref = c.getExpr() and
va = deref.getOperand() and
fnacc = va.getTarget().getAnAssignedValue()
select c, fnacc.getTarget()

9
docs/codeql/ql-training/query-examples/cpp/data-flow-cpp-1.ql
View File

@@ -2,7 +2,8 @@ import cpp
import semmle.code.cpp.commons.Printf
from Call c, FormattingFunction ff, Expr format
where c.getTarget() = ff and
format = c.getArgument(ff.getFormatParameterIndex()) and
not format instanceof StringLiteral
select format, "Non-constant format string."
where
c.getTarget() = ff and
format = c.getArgument(ff.getFormatParameterIndex()) and
not format instanceof StringLiteral
select format, "Non-constant format string."

9
docs/codeql/ql-training/query-examples/cpp/data-flow-cpp-2.ql
View File

@@ -5,8 +5,9 @@ import semmle.code.cpp.commons.Printf
class SourceNode extends DataFlow::Node { /* ... */ }
from FormattingFunction f, Call c, SourceNode src, DataFlow::Node arg
where c.getTarget() = f and
arg.asExpr() = c.getArgument(f.getFormatParameterIndex()) and
DataFlow::localFlow(src, arg) and
not src.asExpr() instanceof StringLiteral
where
c.getTarget() = f and
arg.asExpr() = c.getArgument(f.getFormatParameterIndex()) and
DataFlow::localFlow(src, arg) and
not src.asExpr() instanceof StringLiteral
select arg, "Non-constant format string."

6
docs/codeql/ql-training/query-examples/cpp/empty-if-cpp-class.ql
View File

@@ -1,11 +1,9 @@
import cpp
class EmptyBlock extends Block {
EmptyBlock() {
this.isEmpty()
}
EmptyBlock() { this.isEmpty() }
}
from IfStmt ifStmt
where ifstmt.getThen() instanceof EmptyBlock
select ifstmt
select ifstmt

2
docs/codeql/ql-training/query-examples/cpp/empty-if-cpp-model.ql
View File

@@ -8,4 +8,4 @@ from IfStmt ifstmt
where
ifstmt.getThen() instanceof EmptyBlock and
not exists(ifstmt.getElse())
select ifstmt, "This if-statement is redundant."
select ifstmt, "This if-statement is redundant."

6
docs/codeql/ql-training/query-examples/cpp/empty-if-cpp-predicate.ql
View File

@@ -1,9 +1,7 @@
import cpp
predicate isEmpty(Block block) {
block.isEmpty()
}
predicate isEmpty(Block block) { block.isEmpty() }
from IfStmt ifstmt
where isEmpty(ifstmt.getThen())
select ifstmt, "This if-statement is redundant."
select ifstmt, "This if-statement is redundant."

6
docs/codeql/ql-training/query-examples/cpp/empty-if-cpp.ql
View File

@@ -1,7 +1,7 @@
import cpp
import cpp
from IfStmt ifstmt, Block block
where
block = ifstmt.getThen() and
block.isEmpty()
select ifstmt, "This if-statement is redundant."
select ifstmt, "This if-statement is redundant."

5
docs/codeql/ql-training/query-examples/cpp/global-data-flow-cpp-1.ql
View File

@@ -3,11 +3,12 @@ import semmle.code.cpp.dataflow.TaintTracking
class TaintedFormatConfig extends TaintTracking::Configuration {
TaintedFormatConfig() { this = "TaintedFormatConfig" }
override predicate isSource(DataFlow::Node source) { /* TBD */ }
override predicate isSink(DataFlow::Node sink) { /* TBD */ }
}
from TaintedFormatConfig cfg, DataFlow::Node source, DataFlow::Node sink
where cfg.hasFlow(source, sink)
select sink, "This format string may be derived from a $@.",
source, "user-controlled value"
select sink, "This format string may be derived from a $@.", source, "user-controlled value"

2
docs/codeql/ql-training/query-examples/cpp/snprintf-1.ql
View File

@@ -8,4 +8,4 @@ where
TaintTracking::localTaint(source, sink) and
source.asExpr() = call and
sink.asExpr() = call.getArgument(1)
select call
select call

2
docs/codeql/ql-training/query-examples/java/data-flow-java-1.ql
View File

@@ -8,4 +8,4 @@ from MethodAccess ma
where
ma.getMethod().getName().matches("sparql%Query") and
ma.getArgument(0) instanceof StringConcat
select ma, "SPARQL query vulnerable to injection."
select ma, "SPARQL query vulnerable to injection."

2
docs/codeql/ql-training/query-examples/java/data-flow-java-2.ql
View File

@@ -5,4 +5,4 @@ from MethodAccess ma, StringConcat stringConcat
where
ma.getMethod().getName().matches("sparql%Query") and
localFlow(exprNode(stringConcat), exprNode(ma.getArgument(0)))
select ma, "SPARQL query vulnerable to injection."
select ma, "SPARQL query vulnerable to injection."

7
docs/codeql/ql-training/query-examples/java/empty-if-java-class.ql
View File

@@ -1,12 +1,9 @@
import java
class EmptyBlock extends Block {
EmptyBlock() {
this.getNumStmt() = 0
}
EmptyBlock() { this.getNumStmt() = 0 }
}
from IfStmt ifstmt
where ifstmt.getThen() instanceof
EmptyBlock
where ifstmt.getThen() instanceof EmptyBlock
select ifstmt

2
docs/codeql/ql-training/query-examples/java/empty-if-java-model.ql
View File

@@ -8,4 +8,4 @@ from IfStmt ifstmt
where
ifstmt.getThen() instanceof EmptyBlock and
not exists(ifstmt.getElse())
select ifstmt, "This if-statement is redundant."
select ifstmt, "This if-statement is redundant."

6
docs/codeql/ql-training/query-examples/java/empty-if-java-predicate.ql
View File

@@ -1,9 +1,7 @@
import java
predicate isEmpty(Block block) {
block.getNumStmt() = 0
}
predicate isEmpty(Block block) { block.getNumStmt() = 0 }
from IfStmt ifstmt
where isEmpty(ifstmt.getThen())
select ifstmt
select ifstmt

2
docs/codeql/ql-training/query-examples/java/empty-if-java.ql
View File

@@ -4,4 +4,4 @@ from IfStmt ifstmt, Block block
where
block = ifstmt.getThen() and
block.getNumStmt() = 0
select ifstmt, "This if-statement is redundant."
select ifstmt, "This if-statement is redundant."

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