CVE-2025-15310
📋 TL;DR
CVE-2025-15310 is a local privilege escalation vulnerability in Tanium Patch Endpoint Tools that allows authenticated local users to gain elevated privileges. This affects organizations using Tanium's patch management solution where users have local access to endpoints. The vulnerability stems from improper link resolution (CWE-59) in the patch tools.
💻 Affected Systems
- Tanium Patch Endpoint Tools
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An authenticated attacker could gain SYSTEM/root privileges on endpoints, potentially compromising the entire Tanium-managed environment and enabling lateral movement across the network.
Likely Case
Malicious insiders or compromised user accounts could escalate privileges on individual endpoints to install malware, steal credentials, or bypass security controls.
If Mitigated
With proper access controls and monitoring, impact is limited to isolated endpoints with minimal lateral movement capability.
🎯 Exploit Status
Exploitation requires local authenticated access but likely involves simple path manipulation techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in advisory; refer to Tanium security update
Vendor Advisory: https://security.tanium.com/TAN-2025-001
Restart Required: Yes
Instructions:
1. Access Tanium console 2. Navigate to Patch module 3. Deploy updated Patch Endpoint Tools 4. Restart affected endpoints 5. Verify deployment success
🔧 Temporary Workarounds
Restrict local access
allLimit local user access to endpoints with Tanium Patch tools installed
Monitor for suspicious activity
allImplement monitoring for privilege escalation attempts on Tanium-managed endpoints
🧯 If You Can't Patch
- Implement strict least privilege access controls for all local users
- Deploy endpoint detection and response (EDR) solutions to monitor for privilege escalation patterns
🔍 How to Verify
Check if Vulnerable:
Check Tanium console for Patch Endpoint Tools version and compare against patched version in advisoryCheck Version:
On Windows: Check Tanium installation directory for version info. On Linux: Check Tanium agent status and versionVerify Fix Applied:
Verify Patch Endpoint Tools have been updated to patched version and no privilege escalation attempts are detected📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation events
- Suspicious process creation from Tanium directories
- Failed privilege escalation attempts
Network Indicators:
- Unusual outbound connections from Tanium-managed endpoints post-exploitation
SIEM Query:
EventID=4688 OR ProcessName contains 'tanium' AND ParentProcess contains 'tanium' AND NewIntegrityLevel='System'