CVE-2025-20341
📋 TL;DR
This vulnerability in Cisco Catalyst Center Virtual Appliance allows authenticated users with at least Observer role to elevate privileges to Administrator by sending crafted HTTP requests. It affects systems with insufficient input validation, enabling unauthorized system modifications.
💻 Affected Systems
- Cisco Catalyst Center Virtual Appliance
⚠️ 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
Attacker gains full administrative control, creates persistent backdoors, modifies configurations, accesses sensitive data, and potentially compromises the entire network management system.
Likely Case
Privileged user elevates to administrator to bypass security controls, create unauthorized accounts, or modify system settings for persistence.
If Mitigated
With proper access controls and monitoring, exploitation would be detected quickly, limiting damage to isolated privilege escalation attempts.
🎯 Exploit Status
Exploitation requires valid credentials and knowledge of vulnerable endpoints; HTTP request manipulation needed
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Cisco advisory for specific patched versions
Vendor Advisory: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-catc-priv-esc-VS8EeCuX
Restart Required: Yes
Instructions:
1. Review Cisco advisory for affected versions 2. Download appropriate patch from Cisco 3. Apply patch following Cisco documentation 4. Restart affected services or appliance 5. Verify patch application
🔧 Temporary Workarounds
Restrict Access Controls
allLimit user accounts with Observer or higher roles to trusted personnel only
Network Segmentation
allIsolate Catalyst Center appliance from general network access
🧯 If You Can't Patch
- Implement strict access controls and monitor all user activity with Observer+ roles
- Deploy network monitoring for unusual HTTP requests to Catalyst Center endpoints
🔍 How to Verify
Check if Vulnerable:
Check Catalyst Center version against Cisco advisory; review user roles and access logsCheck Version:
Check Catalyst Center web interface or CLI for version informationVerify Fix Applied:
Verify patch version installed matches Cisco's patched version; test privilege escalation attempts fail📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation attempts
- Multiple failed then successful authentication events from same user
- User role changes in audit logs
Network Indicators:
- HTTP requests with unusual parameters to administrative endpoints
- Traffic patterns suggesting privilege escalation attempts
SIEM Query:
source="catalyst_center" AND (event_type="privilege_escalation" OR user_role_changed="true")