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JS: Sharpen up EnumerationRegExp #18892
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d97d673
JS: Add test case showing lack of flow through non-sanitising regexp
asgerf c3ad805
JS: Sharpen up EnumerationRegExp
asgerf c8a89c4
JS: Change note
asgerf 2e32e44
Update javascript/ql/src/change-notes/2025-02-28-membership-regexp-te…
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7 changes: 7 additions & 0 deletions
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javascript/ql/src/change-notes/2025-02-28-membership-regexp-test.md
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,7 @@ | ||
--- | ||
category: fix | ||
--- | ||
* Fixed a bug that would in rare cases cause some regexp-based checks | ||
to seen as generic taint sanitisers, even though the underlying regexp | ||
is not restrictive enough. The regexps are now analysed more precisely, | ||
and unrestrictive regexp checks will no longer block taint flow. |
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6 changes: 6 additions & 0 deletions
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javascript/ql/test/library-tests/TaintTracking/regexp-sanitiser.js
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,6 @@ | ||
function foo() { | ||
const taint = source(); | ||
if (/^asd[\s\S]*$/.test(taint)) { | ||
sink(taint); // NOT OK | ||
} | ||
} |
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