ModelScan Bypass PoC โ mailcap.findmatch
Security research for responsible disclosure via Huntr MFV program.
Vulnerability
mailcap.findmatch is not in modelscan's unsafe_globals blocklist.
modelscan reports "No issues found" but loading triggers calls os.system() internally to execute mailcap entries. If mailcap file contains attacker-controlled commands, achieves command execution..
Impact: HIGH
Reproduction
pip install modelscan
modelscan scan -p bypass_poc.pkl
# Output: "No issues found!"
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