CVE-2025-56689
📋 TL;DR
CVE-2025-56689 allows attackers to bypass OTP/MFA authentication in Quest Safeguard for Privileged Passwords by replaying intercepted valid OTP responses. This affects organizations using the vulnerable appliance version for privileged access management. The vendor disputes this as a vulnerability, stating the cookie-based authentication model functions as designed.
💻 Affected Systems
- One Identity by Quest Safeguard for Privileged Passwords Appliance
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could gain unauthorized privileged access to sensitive systems and credentials by bypassing MFA protections.
Likely Case
Limited unauthorized access if attackers can intercept OTP responses through man-in-the-middle attacks or compromised client systems.
If Mitigated
Minimal impact with proper network segmentation, monitoring, and the HttpOnly cookie attribute preventing client-side script access.
🎯 Exploit Status
Requires intercepting valid OTP responses, which typically needs man-in-the-middle positioning or compromised client systems.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not applicable - vendor disputes vulnerability
Vendor Advisory: Not available - vendor disputes vulnerability
Restart Required: No
Instructions:
No official patch available as vendor disputes this is a vulnerability. Consider implementing workarounds and monitoring.
🔧 Temporary Workarounds
Network Segmentation and Monitoring
allImplement strict network segmentation and monitor for unusual authentication patterns or replay attempts.
Session Management Controls
allImplement shorter session timeouts and monitor for cookie reuse across different IP addresses or locations.
🧯 If You Can't Patch
- Implement network-level monitoring for authentication replay attempts
- Enforce strict access controls and audit all privileged access attempts
🔍 How to Verify
Check if Vulnerable:
Check if running Safeguard for Privileged Passwords Appliance version 7.5.1.20903 via appliance management interface.Check Version:
Check via appliance web interface or management console for version information.Verify Fix Applied:
No official fix available as vendor disputes vulnerability. Verify workarounds are implemented.📡 Detection & Monitoring
Log Indicators:
- Multiple authentication attempts with same OTP response
- Authentication from unusual locations or IPs
- Rapid successive authentication attempts
Network Indicators:
- Unusual authentication traffic patterns
- Repeated authentication requests with similar timing
SIEM Query:
Authentication logs where same OTP value appears multiple times within short timeframes from different sources