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34 lines
1.2 KiB
Plaintext
34 lines
1.2 KiB
Plaintext
/**
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* Provides a taint-tracking configuration for detecting "polynomial regular expression denial of service (ReDoS)" vulnerabilities.
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*
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* Note, for performance reasons: only import this file if
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* `PolynomialReDoS::Configuration` is needed, otherwise
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* `PolynomialReDoSCustomizations` should be imported instead.
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*/
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private import python
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import semmle.python.dataflow.new.DataFlow
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import semmle.python.dataflow.new.TaintTracking
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import PolynomialReDoSCustomizations::PolynomialReDoS
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private module PolynomialReDoSConfig implements DataFlow::ConfigSig {
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predicate isSource(DataFlow::Node source) { source instanceof Source }
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predicate isSink(DataFlow::Node sink) { sink instanceof Sink }
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predicate isBarrier(DataFlow::Node node) { node instanceof Sanitizer }
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predicate observeDiffInformedIncrementalMode() { any() }
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Location getASelectedSinkLocation(DataFlow::Node sink) {
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result = sink.(Sink).getLocation()
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or
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result = sink.(Sink).getHighlight().getLocation()
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or
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result = sink.(Sink).getABacktrackingTerm().getLocation()
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}
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}
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/** Global taint-tracking for detecting "polynomial regular expression denial of service (ReDoS)" vulnerabilities. */
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module PolynomialReDoSFlow = TaintTracking::Global<PolynomialReDoSConfig>;
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