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Advisories

ImageMagick before 7.1.2-32 and 6.9.13-57 Security Policy Bypass via policy.xml DOCTYPE

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severity
low
date
Affecting

  • ImageMagick >= 7.0.0-0, < 7.1.2-32

  • ImageMagick >= 0, < 6.9.13-57

CWE
  • CWE-693 Protection Mechanism Failure
CVSS
1.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Credit
Yanhaoxi
Description
ImageMagick before 7.1.2-32 and 6.9.13-57 contains a policy bypass vulnerability in LoadPolicyCache that silently skips security policy rules when policy.xml uses an alternate DOCTYPE. A valid DOCTYPE not ending in ']>' makes the parser consume the rest of the file, so no policy rules are applied and restricted operations become allowed.

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