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prune results that end with newline, where the input cannot contain newlines

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Erik Krogh Kristensen
2020-11-03 14:41:55 +01:00
parent ebc4856456
commit b02004430c
5 changed files with 38 additions and 2 deletions
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8
javascript/ql/src/Performance/PolynomialReDoS.ql
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@@ -14,9 +14,15 @@
import javascript
import semmle.javascript.security.performance.PolynomialReDoS::PolynomialReDoS
import semmle.javascript.security.performance.SuperlinearBackTracking
import DataFlow::PathGraph
from Configuration cfg, DataFlow::PathNode source, DataFlow::PathNode sink
where cfg.hasFlowPath(source, sink)
where
cfg.hasFlowPath(source, sink) and
not (
source.getNode().(Source).getKind() = "url" and
sink.getNode().(Sink).getRegExp().(PolynomialBackTrackingTerm).isAtEndLine()
)
select sink.getNode(), source, sink, "This expensive $@ use depends on $@.",
sink.getNode().(Sink).getRegExp(), "regular expression", source.getNode(), "a user-provided value"