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Merge pull request #10128 from MathiasVP/add-cleartext-sanitizer

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C++: Add a sanitizer to `cpp/cleartext-storage-buffer`
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Mathias Vorreiter Pedersen
2022-08-22 17:13:22 +01:00
committed by GitHub
parent 25195bb0ba 831f143fe6
commit 0ac8b7ce65
2 changed files with 8 additions and 0 deletions
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4
cpp/ql/src/Security/CWE/CWE-311/CleartextBufferWrite.ql
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@@ -26,6 +26,10 @@ class ToBufferConfiguration extends TaintTracking::Configuration {
override predicate isSource(DataFlow::Node source) { source instanceof FlowSource }
override predicate isSanitizer(DataFlow::Node node) {
node.asExpr().getUnspecifiedType() instanceof IntegralType
}
override predicate isSink(DataFlow::Node sink) {
exists(BufferWrite::BufferWrite w | w.getASource() = sink.asExpr())
}

4
cpp/ql/src/change-notes/2022-08-22-cleartext-buffer-write-sanitizer.md Normal file
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@@ -0,0 +1,4 @@
---
category: minorAnalysis
---
* The "Cleartext storage of sensitive information in buffer" (`cpp/cleartext-storage-buffer`) query has been improved to produce fewer false positives.