Vulnerability CVE-2019-13574
Published: 2019-07-11   Modified: 2019-07-12

Description:
In lib/mini_magick/image.rb in MiniMagick before 4.9.4, a fetched remote image filename could cause remote command execution because Image.open input is directly passed to Kernel#open, which accepts a '|' character followed by a command.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Minimagick project -> Minimagick 
Debian -> Debian linux 

 References:
https://benjamin-bouchet.com/blog/vulnerabilite-dans-la-gem-mini_magick-version-4-9-4/
https://github.com/minimagick/minimagick/commit/4cd5081e58810d3394d27a67219e8e4e0445d851
https://github.com/minimagick/minimagick/compare/d484786...293f9bb
https://github.com/minimagick/minimagick/releases/tag/v4.9.4
https://lists.debian.org/debian-lts-announce/2019/10/msg00007.html
https://seclists.org/bugtraq/2019/Jul/20
https://www.debian.org/security/2019/dsa-4481
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