CVE-2025-52669
📋 TL;DR
This vulnerability allows non-admin users in Revive Adserver to view contact names and email addresses of other users due to insecure design policies. It affects all users of Revive Adserver versions 5.5.2, 6.0.1, and earlier. The issue stems from improper access controls in the user management system.
💻 Affected Systems
- Revive Adserver
📦 What is this software?
Revive Adserver by Revive Adserver
Revive Adserver by Revive Adserver
⚠️ Risk & Real-World Impact
Worst Case
Attackers could harvest user contact information for phishing campaigns, social engineering attacks, or identity theft, potentially leading to account compromise or data breaches.
Likely Case
Non-admin users can access sensitive personal information of other users, violating privacy expectations and potentially enabling targeted phishing attempts.
If Mitigated
With proper access controls, only authorized administrators can view user contact information, limiting exposure to sensitive data.
🎯 Exploit Status
Exploitation requires authenticated access as a non-admin user. The vulnerability is straightforward to exploit once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 5.5.2 and 6.0.1
Vendor Advisory: https://www.revive-adserver.com/security/
Restart Required: No
Instructions:
1. Backup your current installation. 2. Download the latest version from the official Revive Adserver website. 3. Follow the upgrade instructions for your specific version. 4. Verify that user access controls are properly enforced.
🔧 Temporary Workarounds
Restrict User Access
allTemporarily limit non-admin user access to user management interfaces
Monitor User Activity
allImplement enhanced logging and monitoring of user management system access
🧯 If You Can't Patch
- Implement network segmentation to isolate the Revive Adserver instance
- Enforce strict access controls and monitor for unusual user management system access patterns
🔍 How to Verify
Check if Vulnerable:
Log in as a non-admin user and attempt to access user contact information through the user management interface. If you can view other users' contact details, the system is vulnerable.Check Version:
Check the version in the Revive Adserver admin interface or look for version information in the installation files.Verify Fix Applied:
After patching, log in as a non-admin user and verify that user contact information is no longer accessible. Only admin users should be able to view this information.📡 Detection & Monitoring
Log Indicators:
- Multiple user profile access attempts by non-admin users
- Unusual patterns of user management system access
Network Indicators:
- Increased traffic to user management endpoints from non-admin accounts
SIEM Query:
source="revive_adserver" AND (event_type="user_access" OR event_type="profile_view") AND user_role!="admin"