MiniMagick Gem für Ruby URI-Verarbeitung Arbiträre Befehlsinjektion

The vulnerability lies within the lib/mini_magick.rb file, where insufficient sanitization of URLs allows for the injection of shell commands. An attacker could craft a malicious URL containing shell metacharacters (e.g., ;, |, &&) that, when processed by MiniMagick, would execute arbitrary code on the server. This could lead to complete system compromise, including data theft, modification, or denial of service. The impact is particularly severe in environments where MiniMagick is used to process user-supplied images, as attackers could leverage this vulnerability to gain unauthorized access.

Ruby applications that utilize the MiniMagick Gem for image processing are at risk. This includes web applications, automation scripts, and any other Ruby environment where MiniMagick is deployed. Systems running older versions of Ruby or those with outdated dependency management practices are particularly vulnerable.

• ruby / gem: Check gem versions using gem list. Look for versions <= 3.5.0. Inspect application code for calls to MiniMagick that process URLs.

gem list mini_magick

• generic web: Monitor web server access logs for unusual URL patterns containing shell metacharacters.

grep -i ';|\|&' /var/log/apache2/access.log

1. 2013-05-22Discovery

   discovery

2. 2017-10-24Disclosure

   disclosure

1. Veröffentlicht2017-10-24
2. Geändert2024-12-05
3. EPSS aktualisiert2026-04-02

The primary mitigation is to upgrade to MiniMagick version 3.6.0 or later, which includes the necessary fixes to prevent command injection. If upgrading is not immediately feasible, consider implementing input validation and sanitization on URLs processed by MiniMagick to remove or escape potentially malicious characters. Web Application Firewalls (WAFs) configured to detect and block command injection attempts can also provide an additional layer of protection. Monitor system logs for suspicious command execution patterns related to image processing.