CVE-2025-6083
📋 TL;DR
A syntax error in ExtremeCloud Universal ZTNA's 'searchKeyword' condition allows users to bypass the owner_id filter, potentially enabling them to search data across the entire table instead of being restricted to their specific owner_id. This affects all users of vulnerable ExtremeCloud Universal ZTNA deployments.
💻 Affected Systems
- ExtremeCloud Universal ZTNA
📦 What is this software?
Extremecloud Universal Ztna by Extremenetworks
Extremecloud Universal Ztna by Extremenetworks
⚠️ Risk & Real-World Impact
Worst Case
An authenticated user could access sensitive data belonging to other organizations or users, potentially leading to data leakage, privacy violations, or unauthorized information gathering.
Likely Case
Users inadvertently or intentionally viewing data outside their authorized scope, compromising data segregation and potentially exposing sensitive information.
If Mitigated
Limited impact if proper access controls and monitoring are in place, though data segregation principles would still be violated.
🎯 Exploit Status
Exploitation requires authenticated access and knowledge of the vulnerable search parameter.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific fixed version
Vendor Advisory: https://extreme-networks.my.site.com/ExtrArticleDetail?an=000126912
Restart Required: Yes
Instructions:
1. Review the vendor advisory at the provided URL.
2. Identify the patched version for your deployment.
3. Apply the update following Extreme Networks' standard update procedures.
4. Restart affected services as required.
🔧 Temporary Workarounds
Disable search functionality
allTemporarily disable the search feature that uses the vulnerable 'searchKeyword' parameter until patching is complete.
🧯 If You Can't Patch
- Implement strict network segmentation to limit access to the ZTNA management interface.
- Enhance logging and monitoring for unusual search patterns or data access attempts.
🔍 How to Verify
Check if Vulnerable:
Check your ExtremeCloud Universal ZTNA version against the patched version listed in the vendor advisory.Check Version:
Check version via ExtremeCloud Universal ZTNA admin interface or CLI (specific command depends on deployment).Verify Fix Applied:
After patching, verify that searches with the 'searchKeyword' parameter are correctly restricted by owner_id.📡 Detection & Monitoring
Log Indicators:
- Unusual search queries returning large datasets
- Search operations without proper owner_id filtering in logs
Network Indicators:
- Increased data transfer from ZTNA search endpoints
SIEM Query:
Search for 'searchKeyword' parameter usage in application logs with anomalous result counts.