Platform
ruby
Component
dragonfly
Fixed in
1.0.0
CVE-2013-5671 is a Remote Code Execution (RCE) vulnerability discovered in the fog-dragonfly gem, specifically within the lib/dragonfly/imagemagickutils.rb file. This flaw allows attackers to potentially execute arbitrary commands on systems running vulnerable versions. The vulnerability affects versions of the gem up to and including 0.8.2. A fix is available in version 1.0.0.
The impact of CVE-2013-5671 is severe due to its RCE nature. A successful exploit allows an attacker to gain complete control over the affected system. This could involve installing malware, stealing sensitive data, or using the compromised system as a launchpad for further attacks within the network. Given the gem's role in handling image processing, an attacker could potentially upload a malicious image to trigger the vulnerability, leading to remote code execution without requiring authentication. The blast radius extends to any system where the fog-dragonfly gem is deployed and exposed to untrusted image uploads.
CVE-2013-5671 was published in 2017. While no active campaigns have been publicly reported, the RCE nature of the vulnerability makes it a high-value target. The lack of a readily available public exploit does not diminish the risk, as attackers may be developing exploits internally. The vulnerability's age suggests it may be present in legacy systems that have not been regularly updated, increasing the potential for exploitation. Severity is considered high due to the potential for remote code execution.
Exploit Status
EPSS
2.17% (84% percentile)
The primary mitigation for CVE-2013-5671 is to upgrade the fog-dragonfly gem to version 1.0.0 or later. If upgrading is not immediately feasible, consider implementing stricter input validation on image uploads to prevent malicious payloads from reaching the imagemagickutils.rb file. Web Application Firewalls (WAFs) configured to inspect image uploads for suspicious patterns could also provide a temporary layer of protection. Review and restrict permissions granted to the Dragonfly process to limit the potential damage from a successful exploit. After upgrading, confirm the fix by attempting to upload a test image and verifying that the imagemagickutils.rb file is not being exploited.
No official patch available. Check for workarounds or monitor for updates.
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CVE-2013-5671 is a Remote Code Execution (RCE) vulnerability affecting versions of the fog-dragonfly gem up to 0.8.2. It allows attackers to execute arbitrary commands via image processing vectors.
You are affected if your application uses fog-dragonfly gem version 0.8.2 or earlier. Check your gem versions using gem list fog-dragonfly.
Upgrade the fog-dragonfly gem to version 1.0.0 or later using gem update fog-dragonfly. If upgrading is not possible, implement stricter input validation on image uploads.
While no active campaigns have been publicly reported, the RCE nature of the vulnerability makes it a high-value target and potential for exploitation exists.
Refer to the official advisory and related information on the Ruby Security Advisory Database: https://rubysec.com/advisories/CVE-2013-5671
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