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OS Command Injection in MiniMagick

High severity GitHub Reviewed Published Jul 18, 2019 to the GitHub Advisory Database • Updated Aug 29, 2023

Package

bundler mini_magick (RubyGems)

Affected versions

< 4.9.4

Patched versions

4.9.4

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.

References

Published by the National Vulnerability Database Jul 12, 2019
Reviewed Jul 18, 2019
Published to the GitHub Advisory Database Jul 18, 2019
Last updated Aug 29, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS score

1.277%
(86th percentile)

Weaknesses

CVE ID

CVE-2019-13574

GHSA ID

GHSA-r7j3-vvh2-xrpj

Source code

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