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Update PossibleTimingAttackAgainstHash.ql

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This commit is contained in:
Ahmed Farid
2022-07-20 13:05:49 +01:00
committed by GitHub
parent ee743e61e9
commit 7d0d39e019
1 changed files with 1 additions and 17 deletions
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18
python/ql/src/experimental/Security/CWE-208/PossibleTimingAttackAgainstHash.ql
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@@ -26,23 +26,7 @@ import DataFlow::PathGraph
class PossibleTimingAttackAgainstHash extends TaintTracking::Configuration {
PossibleTimingAttackAgainstHash() { this = "PossibleTimingAttackAgainstHash" }
override predicate isSource(DataFlow::Node source) {
source = API::moduleImport("hmac").getMember("digest").getACall() or
source =
API::moduleImport("hmac")
.getMember("new")
.getReturn()
.getMember(["digest", "hexdigest"])
.getACall() or
source =
API::moduleImport("hashlib")
.getMember([
"new", "sha1", "sha224", "sha256", "sha384", "sha512", "blake2b", "blake2s", "md5"
])
.getReturn()
.getMember(["digest", "hexdigest"])
.getACall()
}
override predicate isSource(DataFlow::Node source) { source instanceof ProduceHashCall }
override predicate isSink(DataFlow::Node sink) { sink instanceof CompareSink }
}