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JS: Port ResourceExhaustion

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Asger F
2023-10-05 09:22:04 +02:00
parent b9bd0520e2
commit 4af7694309
4 changed files with 80 additions and 90 deletions
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15
javascript/ql/lib/semmle/javascript/security/dataflow/ResourceExhaustionCustomizations.qll
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@@ -31,6 +31,21 @@ module ResourceExhaustion {
*/
abstract class Sanitizer extends DataFlow::Node { }
/**
* A barrier guard for resource exhaustion vulnerabilities.
*/
abstract class BarrierGuard extends DataFlow::Node {
/**
* Holds if this node acts as a barrier for data flow, blocking further flow from `e` if `this` evaluates to `outcome`.
*/
predicate blocksExpr(boolean outcome, Expr e) { none() }
}
/** A subclass of `BarrierGuard` that is used for backward compatibility with the old data flow library. */
abstract class BarrierGuardLegacy extends BarrierGuard, TaintTracking::SanitizerGuardNode {
override predicate sanitizes(boolean outcome, Expr e) { this.blocksExpr(outcome, e) }
}
/** A source of remote user input, considered as a data flow source for resource exhaustion vulnerabilities. */
class RemoteFlowSourceAsSource extends Source instanceof RemoteFlowSource {
RemoteFlowSourceAsSource() {

30
javascript/ql/lib/semmle/javascript/security/dataflow/ResourceExhaustionQuery.qll
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@@ -13,7 +13,31 @@ import ResourceExhaustionCustomizations::ResourceExhaustion
/**
* A data flow configuration for resource exhaustion vulnerabilities.
*/
class Configuration extends TaintTracking::Configuration {
module ResourceExhaustionConfig implements DataFlow::ConfigSig {
predicate isSource(DataFlow::Node source) { source instanceof Source }
predicate isSink(DataFlow::Node sink) { sink instanceof Sink }
predicate isBarrier(DataFlow::Node node) {
node instanceof Sanitizer or
node = any(DataFlow::PropRead read | read.getPropertyName() = "length") or
node = DataFlow::MakeBarrierGuard<BarrierGuard>::getABarrierNode()
}
predicate isAdditionalFlowStep(DataFlow::Node src, DataFlow::Node dst) {
isNumericFlowStep(src, dst)
}
}
/**
* Data flow for resource exhaustion vulnerabilities.
*/
module ResourceExhaustionFlow = TaintTracking::Global<ResourceExhaustionConfig>;
/**
* DEPRECATED. Use the `ResourceExhaustionFlow` module instead.
*/
deprecated class Configuration extends TaintTracking::Configuration {
Configuration() { this = "ResourceExhaustion" }
override predicate isSource(DataFlow::Node source) { source instanceof Source }
@@ -49,10 +73,10 @@ predicate isNumericFlowStep(DataFlow::Node src, DataFlow::Node dst) {
/**
* A sanitizer that blocks taint flow if the size of a number is limited.
*/
class UpperBoundsCheckSanitizerGuard extends TaintTracking::SanitizerGuardNode, DataFlow::ValueNode {
class UpperBoundsCheckSanitizerGuard extends BarrierGuardLegacy, DataFlow::ValueNode {
override RelationalComparison astNode;
override predicate sanitizes(boolean outcome, Expr e) {
override predicate blocksExpr(boolean outcome, Expr e) {
true = outcome and
e = astNode.getLesserOperand()
or

6
javascript/ql/src/Security/CWE-770/ResourceExhaustion.ql
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@@ -13,10 +13,10 @@
*/
import javascript
import DataFlow::PathGraph
import semmle.javascript.security.dataflow.ResourceExhaustionQuery
import ResourceExhaustionFlow::PathGraph
from Configuration dataflow, DataFlow::PathNode source, DataFlow::PathNode sink
where dataflow.hasFlowPath(source, sink)
from ResourceExhaustionFlow::PathNode source, ResourceExhaustionFlow::PathNode sink
where ResourceExhaustionFlow::flowPath(source, sink)
select sink, source, sink, sink.getNode().(Sink).getProblemDescription() + " from a $@.", source,
"user-provided value"

119
javascript/ql/test/query-tests/Security/CWE-770/ResourceExhaustion/ResourceExhaustion.expected
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@@ -1,115 +1,66 @@
nodes
| documentaion-examples/ResourceExhaustion_timeout.js:5:6:5:59 | delay |
| documentaion-examples/ResourceExhaustion_timeout.js:5:14:5:59 | parseIn ... .delay) |
| documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:46 | url.par ... , true) |
| documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:52 | url.par ... ).query |
| documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:58 | url.par ... y.delay |
| documentaion-examples/ResourceExhaustion_timeout.js:5:33:5:39 | req.url |
| documentaion-examples/ResourceExhaustion_timeout.js:5:33:5:39 | req.url |
| documentaion-examples/ResourceExhaustion_timeout.js:7:16:7:20 | delay |
| documentaion-examples/ResourceExhaustion_timeout.js:7:16:7:20 | delay |
| resource-exhaustion.js:5:7:5:42 | s |
| resource-exhaustion.js:5:11:5:34 | url.par ... , true) |
| resource-exhaustion.js:5:11:5:40 | url.par ... ).query |
| resource-exhaustion.js:5:11:5:42 | url.par ... query.s |
| resource-exhaustion.js:5:21:5:27 | req.url |
| resource-exhaustion.js:5:21:5:27 | req.url |
| resource-exhaustion.js:6:7:6:21 | n |
| resource-exhaustion.js:6:11:6:21 | parseInt(s) |
| resource-exhaustion.js:6:20:6:20 | s |
| resource-exhaustion.js:14:16:14:16 | n |
| resource-exhaustion.js:14:16:14:16 | n |
| resource-exhaustion.js:15:22:15:22 | n |
| resource-exhaustion.js:15:22:15:22 | n |
| resource-exhaustion.js:16:26:16:26 | n |
| resource-exhaustion.js:16:26:16:26 | n |
| resource-exhaustion.js:20:20:20:20 | n |
| resource-exhaustion.js:20:20:20:20 | n |
| resource-exhaustion.js:22:18:22:18 | n |
| resource-exhaustion.js:22:18:22:18 | n |
| resource-exhaustion.js:27:9:27:9 | n |
| resource-exhaustion.js:27:9:27:9 | n |
| resource-exhaustion.js:28:13:28:13 | n |
| resource-exhaustion.js:28:13:28:13 | n |
| resource-exhaustion.js:29:9:29:9 | n |
| resource-exhaustion.js:29:9:29:9 | n |
| resource-exhaustion.js:30:9:30:9 | n |
| resource-exhaustion.js:30:9:30:9 | n |
| resource-exhaustion.js:31:9:31:9 | n |
| resource-exhaustion.js:31:9:31:9 | n |
| resource-exhaustion.js:32:9:32:9 | n |
| resource-exhaustion.js:32:9:32:9 | n |
| resource-exhaustion.js:34:12:34:12 | n |
| resource-exhaustion.js:34:12:34:12 | n |
| resource-exhaustion.js:35:12:35:12 | s |
| resource-exhaustion.js:35:12:35:12 | s |
| resource-exhaustion.js:81:17:81:17 | n |
| resource-exhaustion.js:81:17:81:17 | n |
| resource-exhaustion.js:82:17:82:17 | s |
| resource-exhaustion.js:82:17:82:17 | s |
| resource-exhaustion.js:83:18:83:18 | n |
| resource-exhaustion.js:83:18:83:18 | n |
| resource-exhaustion.js:84:18:84:18 | s |
| resource-exhaustion.js:84:18:84:18 | s |
| resource-exhaustion.js:88:16:88:16 | n |
| resource-exhaustion.js:88:16:88:16 | n |
| resource-exhaustion.js:92:18:92:18 | n |
| resource-exhaustion.js:92:18:92:18 | n |
edges
| documentaion-examples/ResourceExhaustion_timeout.js:5:6:5:59 | delay | documentaion-examples/ResourceExhaustion_timeout.js:7:16:7:20 | delay |
| documentaion-examples/ResourceExhaustion_timeout.js:5:6:5:59 | delay | documentaion-examples/ResourceExhaustion_timeout.js:7:16:7:20 | delay |
| documentaion-examples/ResourceExhaustion_timeout.js:5:14:5:59 | parseIn ... .delay) | documentaion-examples/ResourceExhaustion_timeout.js:5:6:5:59 | delay |
| documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:46 | url.par ... , true) | documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:52 | url.par ... ).query |
| documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:52 | url.par ... ).query | documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:58 | url.par ... y.delay |
| documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:46 | url.par ... , true) | documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:58 | url.par ... y.delay |
| documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:58 | url.par ... y.delay | documentaion-examples/ResourceExhaustion_timeout.js:5:14:5:59 | parseIn ... .delay) |
| documentaion-examples/ResourceExhaustion_timeout.js:5:33:5:39 | req.url | documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:46 | url.par ... , true) |
| documentaion-examples/ResourceExhaustion_timeout.js:5:33:5:39 | req.url | documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:46 | url.par ... , true) |
| resource-exhaustion.js:5:7:5:42 | s | resource-exhaustion.js:6:20:6:20 | s |
| resource-exhaustion.js:5:7:5:42 | s | resource-exhaustion.js:35:12:35:12 | s |
| resource-exhaustion.js:5:7:5:42 | s | resource-exhaustion.js:35:12:35:12 | s |
| resource-exhaustion.js:5:7:5:42 | s | resource-exhaustion.js:82:17:82:17 | s |
| resource-exhaustion.js:5:7:5:42 | s | resource-exhaustion.js:82:17:82:17 | s |
| resource-exhaustion.js:5:7:5:42 | s | resource-exhaustion.js:84:18:84:18 | s |
| resource-exhaustion.js:5:7:5:42 | s | resource-exhaustion.js:84:18:84:18 | s |
| resource-exhaustion.js:5:11:5:34 | url.par ... , true) | resource-exhaustion.js:5:11:5:40 | url.par ... ).query |
| resource-exhaustion.js:5:11:5:40 | url.par ... ).query | resource-exhaustion.js:5:11:5:42 | url.par ... query.s |
| resource-exhaustion.js:5:11:5:42 | url.par ... query.s | resource-exhaustion.js:5:7:5:42 | s |
| resource-exhaustion.js:5:21:5:27 | req.url | resource-exhaustion.js:5:11:5:34 | url.par ... , true) |
| resource-exhaustion.js:5:11:5:34 | url.par ... , true) | resource-exhaustion.js:5:7:5:42 | s |
| resource-exhaustion.js:5:21:5:27 | req.url | resource-exhaustion.js:5:11:5:34 | url.par ... , true) |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:14:16:14:16 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:14:16:14:16 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:15:22:15:22 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:15:22:15:22 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:16:26:16:26 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:16:26:16:26 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:20:20:20:20 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:20:20:20:20 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:22:18:22:18 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:22:18:22:18 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:27:9:27:9 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:27:9:27:9 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:28:13:28:13 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:28:13:28:13 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:29:9:29:9 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:29:9:29:9 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:30:9:30:9 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:30:9:30:9 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:31:9:31:9 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:31:9:31:9 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:32:9:32:9 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:32:9:32:9 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:34:12:34:12 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:34:12:34:12 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:81:17:81:17 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:81:17:81:17 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:83:18:83:18 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:83:18:83:18 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:88:16:88:16 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:88:16:88:16 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:92:18:92:18 | n |
| resource-exhaustion.js:6:7:6:21 | n | resource-exhaustion.js:92:18:92:18 | n |
| resource-exhaustion.js:6:11:6:21 | parseInt(s) | resource-exhaustion.js:6:7:6:21 | n |
| resource-exhaustion.js:6:20:6:20 | s | resource-exhaustion.js:6:11:6:21 | parseInt(s) |
nodes
| documentaion-examples/ResourceExhaustion_timeout.js:5:6:5:59 | delay | semmle.label | delay |
| documentaion-examples/ResourceExhaustion_timeout.js:5:14:5:59 | parseIn ... .delay) | semmle.label | parseIn ... .delay) |
| documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:46 | url.par ... , true) | semmle.label | url.par ... , true) |
| documentaion-examples/ResourceExhaustion_timeout.js:5:23:5:58 | url.par ... y.delay | semmle.label | url.par ... y.delay |
| documentaion-examples/ResourceExhaustion_timeout.js:5:33:5:39 | req.url | semmle.label | req.url |
| documentaion-examples/ResourceExhaustion_timeout.js:7:16:7:20 | delay | semmle.label | delay |
| resource-exhaustion.js:5:7:5:42 | s | semmle.label | s |
| resource-exhaustion.js:5:11:5:34 | url.par ... , true) | semmle.label | url.par ... , true) |
| resource-exhaustion.js:5:21:5:27 | req.url | semmle.label | req.url |
| resource-exhaustion.js:6:7:6:21 | n | semmle.label | n |
| resource-exhaustion.js:6:11:6:21 | parseInt(s) | semmle.label | parseInt(s) |
| resource-exhaustion.js:6:20:6:20 | s | semmle.label | s |
| resource-exhaustion.js:14:16:14:16 | n | semmle.label | n |
| resource-exhaustion.js:15:22:15:22 | n | semmle.label | n |
| resource-exhaustion.js:16:26:16:26 | n | semmle.label | n |
| resource-exhaustion.js:20:20:20:20 | n | semmle.label | n |
| resource-exhaustion.js:22:18:22:18 | n | semmle.label | n |
| resource-exhaustion.js:27:9:27:9 | n | semmle.label | n |
| resource-exhaustion.js:28:13:28:13 | n | semmle.label | n |
| resource-exhaustion.js:29:9:29:9 | n | semmle.label | n |
| resource-exhaustion.js:30:9:30:9 | n | semmle.label | n |
| resource-exhaustion.js:31:9:31:9 | n | semmle.label | n |
| resource-exhaustion.js:32:9:32:9 | n | semmle.label | n |
| resource-exhaustion.js:34:12:34:12 | n | semmle.label | n |
| resource-exhaustion.js:35:12:35:12 | s | semmle.label | s |
| resource-exhaustion.js:81:17:81:17 | n | semmle.label | n |
| resource-exhaustion.js:82:17:82:17 | s | semmle.label | s |
| resource-exhaustion.js:83:18:83:18 | n | semmle.label | n |
| resource-exhaustion.js:84:18:84:18 | s | semmle.label | s |
| resource-exhaustion.js:88:16:88:16 | n | semmle.label | n |
| resource-exhaustion.js:92:18:92:18 | n | semmle.label | n |
subpaths
#select
| documentaion-examples/ResourceExhaustion_timeout.js:7:16:7:20 | delay | documentaion-examples/ResourceExhaustion_timeout.js:5:33:5:39 | req.url | documentaion-examples/ResourceExhaustion_timeout.js:7:16:7:20 | delay | This creates a timer with a user-controlled duration from a $@. | documentaion-examples/ResourceExhaustion_timeout.js:5:33:5:39 | req.url | user-provided value |
| resource-exhaustion.js:14:16:14:16 | n | resource-exhaustion.js:5:21:5:27 | req.url | resource-exhaustion.js:14:16:14:16 | n | This creates a buffer with a user-controlled size from a $@. | resource-exhaustion.js:5:21:5:27 | req.url | user-provided value |