CVE-2025-25207
📋 TL;DR
CVE-2025-25207 is a denial-of-service vulnerability in Red Hat Connectivity Link's Authorino service where attackers with developer access can overload the service by adding excessive post-authorization callbacks. This affects organizations using Red Hat Connectivity Link with Authorino for API security. The vulnerability allows resource exhaustion that can disrupt API authorization services.
💻 Affected Systems
- Red Hat Connectivity Link with Authorino service
⚠️ 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 unavailability of API authorization services, disrupting all API traffic that depends on Authorino for zero-trust security enforcement.
Likely Case
Degraded performance or intermittent service disruptions affecting API authorization, potentially causing application timeouts or failures.
If Mitigated
Minimal impact with proper access controls limiting developer permissions and monitoring for abnormal callback configurations.
🎯 Exploit Status
Exploitation requires developer-level access to Authorino configuration, making it an insider threat or post-compromise attack vector.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Red Hat advisory for specific patched versions
Vendor Advisory: https://access.redhat.com/security/cve/CVE-2025-25207
Restart Required: Yes
Instructions:
1. Check current Red Hat Connectivity Link version
2. Apply Red Hat security updates via yum update or equivalent
3. Restart Authorino service
4. Verify service functionality post-update
🔧 Temporary Workarounds
Limit Developer Access
allRestrict developer persona access to only trusted personnel and implement least privilege principles
Implement Callback Limits
linuxConfigure Authorino to limit the number of post-authorization callbacks per policy
# Configure in Authorino policy settings
# Set max_callbacks_per_policy parameter
🧯 If You Can't Patch
- Implement strict access controls and monitoring for developer activities in Authorino
- Deploy rate limiting or resource quotas for Authorino service to prevent complete exhaustion
🔍 How to Verify
Check if Vulnerable:
Check if using Red Hat Connectivity Link with Authorino and review developer access controlsCheck Version:
rpm -q connectivity-link or check component version in Red Hat management consoleVerify Fix Applied:
Verify patched version is installed and test that excessive callback configuration no longer causes service degradation📡 Detection & Monitoring
Log Indicators:
- Unusually high number of callback configurations
- Authorino service restart events
- High CPU/memory usage in Authorino logs
Network Indicators:
- Increased latency in API authorization responses
- Failed authorization requests due to timeouts
SIEM Query:
source="authorino" AND ("callback" OR "post-auth") AND count>threshold