CVE-2025-22216
📋 TL;DR
This vulnerability allows authenticated users to bypass zone isolation in Cloud Foundry UAA by reusing session cookies across different identity zones. Attackers authenticated to one zone can access resources in other zones without proper authorization. This affects organizations using UAA with multiple identity zones configured.
💻 Affected Systems
- Cloud Foundry User Account and Authentication (UAA)
⚠️ 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
An authenticated malicious insider could access sensitive applications and data across all identity zones, potentially compromising multiple tenants or organizational units.
Likely Case
Accidental or intentional cross-zone access leading to privilege escalation and unauthorized data access between zones.
If Mitigated
Limited impact with proper network segmentation and additional authentication layers, though zone isolation would still be compromised.
🎯 Exploit Status
Exploitation requires an authenticated session and knowledge of target zone identifiers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Cloud Foundry UAA release notes for specific fixed version
Vendor Advisory: https://www.cloudfoundry.org/blog/cve-2025-22216-uaa-missing-zone-validation/
Restart Required: Yes
Instructions:
1. Update UAA to the patched version. 2. Restart UAA services. 3. Verify zone isolation is functioning correctly.
🔧 Temporary Workarounds
Session Invalidation
allForce session invalidation across all zones to clear potentially compromised cookies
uaac target https://uaa.example.com
uaac token client get admin -s admin-secret
uaac curl /logout -X POST
Zone Isolation Enforcement
allImplement additional network-level isolation between zones
🧯 If You Can't Patch
- Implement strict network segmentation between identity zones
- Add additional authentication layers for sensitive zone access
🔍 How to Verify
Check if Vulnerable:
Test if jsessionid from one zone grants access to another zone by attempting cross-zone API calls with the same session cookie.Check Version:
uaac --version or check UAA server logs for version informationVerify Fix Applied:
After patching, verify that session cookies are properly scoped to their originating zone and cross-zone access is denied.📡 Detection & Monitoring
Log Indicators:
- Cross-zone access attempts
- Session validation failures across zones
- Unauthorized zone access logs
Network Indicators:
- Unexpected cross-zone API calls
- Session reuse patterns across different zone endpoints
SIEM Query:
source="uaa.log" AND ("zone validation" OR "cross-zone" OR "invalid session")