Advisories

picklescan - Undetected Remote Code Execution via _operator.methodcaller

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severity
high
date
Affecting
  • picklescan >= 0, < 0.0.34

CWE
  • CWE-502 Deserialization of Untrusted Data
CVSS
7.6
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
CoolwindHF
Description
picklescan before 0.0.34 fails to detect the _operator.methodcaller built-in function when scanning pickle files for malicious code. Attackers can craft malicious pickle payloads using _operator.methodcaller that evade detection and execute arbitrary code when loaded by pickle.load().

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