Add GTFOBins validation tests for cut, find, grep, sed, strings, uniq#136
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Add GTFOBins validation tests for cut, find, grep, sed, strings, uniq#136
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Validate that all GTFOBins attack vectors are blocked for builtins that were missing explicit GTFOBins test coverage. Tests verify sandbox escape prevention (file reads outside AllowedPaths), dangerous command/flag rejection (find -fprintf/-delete, sed e/w/-i), and shell escape blocking (find -exec /bin/sh, sed 'e'). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
AlexandreYang
approved these changes
Mar 20, 2026
thieman
requested review from
astuyve,
julesmcrt,
matt-dz and
thieman
as code owners
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Summary
-exec /bin/shblocked by CommandAllowed,-fprintf/-deleteblocked at parse time, sandbox escape blockedecommand (shell),wcommand (write),-iflag (in-place) all blocked; sandbox escape blockedAll 11 new tests pass locally. Combined with existing GTFOBins tests for cat, head, tail, wc, ss, sort, ip, and ping, all 14 builtins with GTFOBins entries now have explicit validation coverage.
Test plan
TestXxxGTFOBins*tests pass on Linux, macOS, Windowsmake fmtclean🤖 Generated with Claude Code