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Go: Add Tainted Path sanitizers #17759

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@Kwstubbs Kwstubbs commented Oct 15, 2024 •
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Add gorilla mux.Vars sanitizer

@Kwstubbs Kwstubbs requested a review from a team as a code owner October 15, 2024 02:52
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owen-mc reviewed Oct 15, 2024
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Please add a test for net/url.URL.Path, and mention it in the change note. Also, why do you think that reading that field is a sanitizer? I don't see anything in the docs about what characters it may or may not contain.

go/ql/lib/semmle/go/security/TaintedPathCustomizations.qll Outdated Show resolved Hide resolved
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go/ql/test/query-tests/Security/CWE-022/TaintedPath.go Outdated Show resolved Hide resolved
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Kwstubbs commented Oct 15, 2024 •
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@owen-mc It seems the default mux also sanitizes the path using this function. It seems there are also some changes implemented in version 1.22 from the comments here that I have yet to test (I'm on 1.21). I'll go ahead and remove the net/url.URL.Path sanitizer for now and possibly come back to it.

@Kwstubbs Kwstubbs requested a review from owen-mc October 15, 2024 21:34
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Looks good - just need to add two tests for SkipClean (called with true and false).

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owen-mc previously approved these changes Nov 13, 2024
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Looks good! Only very minor comments left.

go/ql/src/change-notes/2024-10-14-gopathsanitizer.md Outdated Show resolved Hide resolved
go/ql/test/query-tests/Security/CWE-022/GorillaMuxDefault/MuxClean.go Outdated Show resolved Hide resolved
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owen-mc commented Nov 13, 2024 •
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I think if you're just committing my suggestions it doesn't dismiss my review.

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Co-authored-by: Owen Mansel-Chan <[email protected]>
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committing suggestions didn't work 😞

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owen-mc commented Nov 13, 2024

committing suggestions didn't work 😞

Shows how much I know 😆 .

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