feat(lfi): Add detection for Vite.js path traversal (CVE-2025-30208)#4407
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EsadCetiner merged 3 commits intoJan 16, 2026
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Add rule 930140 to detect Vite.js /@fs/ and /@id/ endpoints used in path traversal attacks. Includes 7 regression tests. Closes coreruleset#4404
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📊 Quantitative test results for language: |
EsadCetiner
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Could you add your change to restricted-files.data instead? It's much cheaper performance wise to use the @pmFromFile operator here in one rule, rather than creating another rule with a regex.
Per reviewer feedback, added /@fs/ and /@id/ entries to restricted-files.data instead of creating a separate rule 930140. This leverages the existing @pmFromFile operator for better performance. Tests added to 930130.yaml (test_id 4-6).
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Good point, thanks for the feedback. Updated the PR:
This leverages the existing |
EsadCetiner
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Thanks, looks ready to merge. Can you add your name to the test file?
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Done, added my name to the test file. Thanks for the quick review! |
EsadCetiner
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Description
Add detection for Vite.js development server path traversal vulnerability (CVE-2025-30208).
Closes #4404
The Problem
Vite.js development servers expose
/@fs/and/@id/endpoints that allow arbitrary file system access. Attackers are actively scanning production servers for these endpoints.Current CRS rule 930130 catches some payloads (like
/@fs/.env) because.envis inrestricted-files.data, but does NOT catch system files like/@fs/etc/passwdbecause rule 930120 only checksARGS, notREQUEST_URI.The Solution
A dedicated rule (930140) matching the
/@fs/and/@id/prefixes provides:Testing
References