CVE-2025-24293
📋 TL;DR
This CVE describes a command injection vulnerability in Active Storage when used with image_processing gem and mini_magick. Attackers can execute arbitrary commands on the server by supplying malicious image transformation parameters. Applications accepting user input for image transformations are affected.
💻 Affected Systems
- Ruby on Rails Active Storage
- image_processing gem
- mini_magick
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Full server compromise allowing remote code execution, data theft, and lateral movement within the network.
Likely Case
Server compromise leading to data exfiltration, cryptocurrency mining, or ransomware deployment.
If Mitigated
Limited impact with proper input validation and ImageMagick security policies in place.
🎯 Exploit Status
Exploitation requires application to accept user input for transformation parameters. No authentication needed if vulnerable endpoint is exposed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check GHSA-r4mg-4433-c7g3 for specific patched versions
Vendor Advisory: https://github.com/advisories/GHSA-r4mg-4433-c7g3
Restart Required: Yes
Instructions:
1. Check GHSA advisory for specific patched versions. 2. Update Rails/Active Storage to patched version. 3. Update image_processing gem if needed. 4. Restart application server.
🔧 Temporary Workarounds
Implement strict input validation
allValidate all user-supplied transformation methods and parameters against a strict allowlist
Configure ImageMagick security policy
linuxDeploy restrictive ImageMagick security policy to limit command execution capabilities
Edit /etc/ImageMagick-7/policy.xml or equivalent policy file
🧯 If You Can't Patch
- Disable user-supplied transformation parameters entirely
- Implement web application firewall rules to block suspicious transformation parameters
🔍 How to Verify
Check if Vulnerable:
Review code for patterns like 'blob.variant(params[:t] => params[:v])' where user input controls transformationsCheck Version:
bundle show rails && bundle show image_processing && bundle show mini_magickVerify Fix Applied:
Check Rails and gem versions against patched versions in GHSA advisory📡 Detection & Monitoring
Log Indicators:
- Unusual ImageMagick commands in logs
- Suspicious transformation parameters in request logs
Network Indicators:
- Outbound connections from application server to unexpected destinations
SIEM Query:
Search for 'variant' method calls with suspicious parameter values in application logs