CVE-2024-36108
📋 TL;DR
CVE-2024-36108 is an authorization bypass vulnerability in casgate identity management system that allows unauthenticated attackers to access sensitive API endpoints by using 'anonymous/ anonymous' as the id parameter. This affects all casgate users running vulnerable versions, potentially leading to account takeover and privilege escalation. The vulnerability has a CVSS score of 9.8, indicating critical severity.
💻 Affected Systems
- casgate
⚠️ 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 including account takeover, privilege escalation to administrative roles, and credential theft for connected services.
Likely Case
Unauthorized access to sensitive user data, potential account takeover of regular users, and exposure of authentication credentials.
If Mitigated
Limited impact if proper network segmentation and API gateway controls are in place, but still represents significant authentication bypass risk.
🎯 Exploit Status
Exploitation requires only a simple HTTP GET request with specific parameter values, making it trivial for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version containing PR #201 fix
Vendor Advisory: https://github.com/casgate/casgate/security/advisories/GHSA-mj5q-rc67-h56c
Restart Required: Yes
Instructions:
1. Monitor casgate repository for release containing PR #201. 2. Upgrade to patched version. 3. Restart casgate service. 4. Verify fix is applied.
🔧 Temporary Workarounds
API Endpoint Restriction
allImplement web application firewall rules or API gateway restrictions to block requests with 'anonymous/ anonymous' parameter values.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate casgate from internet and restrict access to trusted IPs only.
- Deploy web application firewall with custom rules to detect and block exploitation attempts.
🔍 How to Verify
Check if Vulnerable:
Test by sending GET request to casgate API endpoints with id parameter set to 'anonymous/ anonymous' and check if unauthorized access is granted.Check Version:
Check casgate version through admin interface or application logs.Verify Fix Applied:
After patching, repeat the same test and verify that proper authorization is enforced and access is denied.📡 Detection & Monitoring
Log Indicators:
- HTTP GET requests with 'anonymous/ anonymous' in id parameter
- Unauthorized access attempts to sensitive API endpoints
- Unusual authentication patterns from single IPs
Network Indicators:
- Unusual volume of GET requests to casgate API endpoints
- Requests containing 'anonymous/ anonymous' parameter values
SIEM Query:
source="casgate" AND (http_method="GET" AND uri_query CONTAINS "anonymous/ anonymous")