CVE-2025-15315
📋 TL;DR
CVE-2025-15315 is a local privilege escalation vulnerability in Tanium Module Server that allows authenticated local users to gain elevated privileges. This affects organizations using Tanium for endpoint management and security. Attackers with initial access to a system could exploit this to compromise the Tanium infrastructure.
💻 Affected Systems
- Tanium Module Server
⚠️ 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
An attacker with local access could gain SYSTEM/root privileges on the Tanium Module Server, potentially compromising the entire Tanium management infrastructure and all managed endpoints.
Likely Case
An authenticated attacker with standard user privileges could escalate to administrative privileges on the Tanium Module Server, enabling lateral movement and persistence within the environment.
If Mitigated
With proper access controls and network segmentation, impact is limited to the specific Tanium Module Server instance, preventing broader infrastructure compromise.
🎯 Exploit Status
Requires local authenticated access. CWE-88 (Argument Injection) suggests manipulation of module arguments could lead to privilege escalation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in advisory; refer to Tanium security update TAN-2025-011
Vendor Advisory: https://security.tanium.com/TAN-2025-011
Restart Required: Yes
Instructions:
1. Review Tanium advisory TAN-2025-011. 2. Apply the latest Tanium Module Server update from Tanium support portal. 3. Restart Tanium Module Server services. 4. Verify patch application.
🔧 Temporary Workarounds
Restrict local access
allLimit local login access to Tanium Module Server to only authorized administrators
Network segmentation
allIsolate Tanium Module Server from general user networks
🧯 If You Can't Patch
- Implement strict access controls to limit who can log into Tanium Module Server systems
- Monitor Tanium Module Server for unusual privilege escalation attempts and module execution
🔍 How to Verify
Check if Vulnerable:
Check Tanium Module Server version against patched versions in TAN-2025-011 advisoryCheck Version:
On Tanium Module Server: Check Tanium console or use Tanium CLI tools to verify module server versionVerify Fix Applied:
Verify Tanium Module Server is running the patched version after update📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation events on Tanium Module Server
- Suspicious module execution with elevated privileges
- Failed authentication attempts followed by successful privilege escalation
Network Indicators:
- Unusual outbound connections from Tanium Module Server post-exploitation
SIEM Query:
source="tanium" AND (event_type="privilege_escalation" OR module_execution="suspicious")