Files
codeql/javascript/ql/experimental/adaptivethreatmodeling/modelbuilding/extraction/ExtractMisclassifiedEndpointFeatures.ql
2022-03-11 11:10:33 +01:00

45 lines
1.9 KiB
Plaintext

/*
* For internal use only.
*
* Query for finding misclassified endpoints which we can use to debug ML-powered queries.
*/
import javascript
import experimental.adaptivethreatmodeling.AdaptiveThreatModeling
import experimental.adaptivethreatmodeling.ATMConfig
import experimental.adaptivethreatmodeling.BaseScoring
import experimental.adaptivethreatmodeling.EndpointFeatures as EndpointFeatures
import experimental.adaptivethreatmodeling.EndpointTypes
import semmle.javascript.security.dataflow.NosqlInjectionCustomizations
/** Gets the positive endpoint type for which you wish to find misclassified examples. */
EndpointType getEndpointType() { result instanceof NosqlInjectionSinkType }
/** Get a positive endpoint. This will be run through the classifier to determine whether it is misclassified. */
DataFlow::Node getAPositiveEndpoint() { result instanceof NosqlInjection::Sink }
/** An ATM configuration to find misclassified endpoints of type `getEndpointType()`. */
class ExtractMisclassifiedEndpointsAtmConfig extends AtmConfig {
ExtractMisclassifiedEndpointsAtmConfig() { this = "ExtractMisclassifiedEndpointsATMConfig" }
override predicate isEffectiveSink(DataFlow::Node sinkCandidate) {
sinkCandidate = getAPositiveEndpoint()
}
override EndpointType getASinkEndpointType() { result = getEndpointType() }
}
/** Get an endpoint from `getAPositiveEndpoint()` that is incorrectly excluded from the results. */
DataFlow::Node getAMisclassifedEndpoint() {
any(ExtractMisclassifiedEndpointsAtmConfig config).isEffectiveSink(result) and
not any(ScoringResults results).shouldResultBeIncluded(_, result)
}
/** The token features for each misclassified endpoint. */
query predicate tokenFeaturesForMisclassifiedEndpoints(
DataFlow::Node endpoint, string featureName, string featureValue
) {
endpoint = getAMisclassifedEndpoint() and
EndpointFeatures::tokenFeatures(endpoint, featureName, featureValue)
}