CVE-2024-46412
📋 TL;DR
This vulnerability allows attackers to bypass authentication in Rebuild v3.7.7 by sending a specially crafted GET request to the /commons/ip-location endpoint. The incorrect access control in the prehandle function enables unauthorized access to protected functionality. All systems running the affected version are vulnerable.
💻 Affected Systems
- Rebuild
⚠️ 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
Complete system compromise through authentication bypass leading to unauthorized data access, privilege escalation, or further exploitation of the application.
Likely Case
Unauthorized access to protected functionality and data that should require authentication, potentially exposing sensitive information.
If Mitigated
Limited impact with proper network segmentation and additional authentication layers, though the core vulnerability remains.
🎯 Exploit Status
Exploitation requires crafting a specific GET request to the vulnerable endpoint. No authentication is required to trigger the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after v3.7.7 (check vendor for specific version)
Vendor Advisory: Not provided in references
Restart Required: No
Instructions:
1. Check Rebuild vendor website for security updates. 2. Upgrade to the latest patched version. 3. Verify the fix by testing the vulnerable endpoint.
🔧 Temporary Workarounds
Block Vulnerable Endpoint
allBlock access to /commons/ip-location endpoint at web server or firewall level
# Example for Apache: RewriteRule ^/commons/ip-location - [F]
# Example for Nginx: location ~ ^/commons/ip-location { deny all; }
Implement Additional Authentication Layer
allAdd authentication requirement before the vulnerable endpoint using web server configuration
# Example for Apache: AuthType Basic
# AuthName "Restricted Area"
# AuthUserFile /path/to/.htpasswd
# Require valid-user
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the Rebuild application
- Deploy a web application firewall (WAF) with rules to detect and block crafted requests to /commons/ip-location
🔍 How to Verify
Check if Vulnerable:
Send a GET request to http://[target]/commons/ip-location and check if it returns data without authentication. If it does, the system is vulnerable.Check Version:
Check Rebuild application interface or configuration files for version information. Typically visible in admin panel or footer.Verify Fix Applied:
After patching, attempt the same GET request. It should now require proper authentication or return an access denied error.📡 Detection & Monitoring
Log Indicators:
- Unusual GET requests to /commons/ip-location from unauthenticated users
- Multiple failed authentication attempts followed by successful access to protected areas
Network Indicators:
- HTTP GET requests to /commons/ip-location endpoint without authentication headers
- Unusual traffic patterns to the vulnerable endpoint
SIEM Query:
source="web_server_logs" AND (url_path="/commons/ip-location" AND NOT (user_agent="legitimate_bot" OR authenticated="true"))