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Advisories

picklescan - Arbitrary Code Execution via Undetected ensurepip._run_pip Function

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severity
high
date
Affecting

  • picklescan >= 0, < 0.0.30

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
FredericDT
Description
picklescan before 0.0.30 (affected versions 0.0.26 and earlier) fails to detect the ensurepip._run_pip built-in function when scanning pickle files, allowing attackers to execute arbitrary code. Malicious pickle files embedding ensurepip._run_pip calls in __reduce__ methods bypass picklescan detection and achieve remote code execution upon pickle.load() invocation.

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