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.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
High
Difficult to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 2
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Imagemagick Imagemagick
cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
|
— |
6.9.13-57
|
|
Imagemagick Imagemagick
cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
|
7.0.0-0
|
7.1.2-32
|
References 8
https://github.com/ImageMagick/ImageMagick
disclosure@vulncheck.com
https://github.com/ImageMagick/ImageMagick/blob/7.1.2-31/MagickCore/policy.c#L1…
disclosure@vulncheck.com
https://github.com/ImageMagick/ImageMagick/commit/1926ccf119141c26274c120d1899d…
disclosure@vulncheck.com
https://github.com/ImageMagick/ImageMagick/commit/399d4bd3b081f44c7fef78153f65e…
disclosure@vulncheck.com
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-jjp4-3fwf-3…
disclosure@vulncheck.com
https://github.com/ImageMagick/ImageMagick6/commit/402ebc5353e569234908962cbdf4…
disclosure@vulncheck.com
https://github.com/ImageMagick/ImageMagick6/commit/da6022b2efe6cce8a2fd8f9e5118…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/imagemagick-before-7.1.2-32-and-6.9.13-57-…
disclosure@vulncheck.com