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Merge pull request #13881 from jketema/shared-taint-tracking

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Introduce shared taint tracking library
This commit is contained in:
Jeroen Ketema
2023-08-21 12:45:49 +02:00
committed by GitHub
parent c8c69aac9b a2bb7dee18
commit 2d0f73d7c2
34 changed files with 246 additions and 625 deletions
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6
java/ql/lib/semmle/code/java/dataflow/TaintTracking.qll
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@@ -8,6 +8,10 @@ import semmle.code.java.dataflow.DataFlow2
import semmle.code.java.dataflow.internal.TaintTrackingUtil::StringBuilderVarModule
module TaintTracking {
import semmle.code.java.dataflow.internal.tainttracking1.TaintTracking
import semmle.code.java.dataflow.internal.tainttracking1.TaintTrackingParameter::Public
private import semmle.code.java.dataflow.internal.DataFlowImplSpecific
private import semmle.code.java.dataflow.internal.TaintTrackingImplSpecific
private import codeql.dataflow.TaintTracking
import TaintFlowMake<JavaDataFlow, JavaTaintTracking>
import semmle.code.java.dataflow.internal.tainttracking1.TaintTrackingImpl
}

10
java/ql/lib/semmle/code/java/dataflow/internal/TaintTrackingImplSpecific.qll Normal file
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@@ -0,0 +1,10 @@
/**
* Provides Java-specific definitions for use in the taint tracking library.
*/
private import codeql.dataflow.TaintTracking
private import DataFlowImplSpecific
module JavaTaintTracking implements InputSig<JavaDataFlow> {
import TaintTrackingUtil
}

2
java/ql/lib/semmle/code/java/dataflow/internal/TaintTrackingUtil.qll
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@@ -177,7 +177,7 @@ private RefType getElementType(RefType container) {
* of `c` at sinks and inputs to additional taint steps.
*/
bindingset[node]
predicate defaultImplicitTaintRead(DataFlow::Node node, DataFlow::Content c) {
predicate defaultImplicitTaintRead(DataFlow::Node node, DataFlow::ContentSet c) {
exists(RefType container |
(node.asExpr() instanceof Argument or node instanceof ArgumentNode) and
getElementType*(node.getType()) = container

75
java/ql/lib/semmle/code/java/dataflow/internal/tainttracking1/TaintTracking.qll
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@@ -1,75 +0,0 @@
/**
* Provides classes for performing local (intra-procedural) and
* global (inter-procedural) taint-tracking analyses.
*/
import TaintTrackingParameter::Public
private import TaintTrackingParameter::Private
private module AddTaintDefaults<DataFlowInternal::FullStateConfigSig Config> implements
DataFlowInternal::FullStateConfigSig
{
import Config
predicate isBarrier(DataFlow::Node node) {
Config::isBarrier(node) or defaultTaintSanitizer(node)
}
predicate isAdditionalFlowStep(DataFlow::Node node1, DataFlow::Node node2) {
Config::isAdditionalFlowStep(node1, node2) or
defaultAdditionalTaintStep(node1, node2)
}
predicate allowImplicitRead(DataFlow::Node node, DataFlow::ContentSet c) {
Config::allowImplicitRead(node, c)
or
(
Config::isSink(node) or
Config::isSink(node, _) or
Config::isAdditionalFlowStep(node, _) or
Config::isAdditionalFlowStep(node, _, _, _)
) and
defaultImplicitTaintRead(node, c)
}
}
/**
* Constructs a global taint tracking computation.
*/
module Global<DataFlow::ConfigSig Config> implements DataFlow::GlobalFlowSig {
private module Config0 implements DataFlowInternal::FullStateConfigSig {
import DataFlowInternal::DefaultState<Config>
import Config
}
private module C implements DataFlowInternal::FullStateConfigSig {
import AddTaintDefaults<Config0>
}
import DataFlowInternal::Impl<C>
}
/** DEPRECATED: Use `Global` instead. */
deprecated module Make<DataFlow::ConfigSig Config> implements DataFlow::GlobalFlowSig {
import Global<Config>
}
/**
* Constructs a global taint tracking computation using flow state.
*/
module GlobalWithState<DataFlow::StateConfigSig Config> implements DataFlow::GlobalFlowSig {
private module Config0 implements DataFlowInternal::FullStateConfigSig {
import Config
}
private module C implements DataFlowInternal::FullStateConfigSig {
import AddTaintDefaults<Config0>
}
import DataFlowInternal::Impl<C>
}
/** DEPRECATED: Use `GlobalWithState` instead. */
deprecated module MakeWithState<DataFlow::StateConfigSig Config> implements DataFlow::GlobalFlowSig {
import GlobalWithState<Config>
}