CVE-2025-15338

6.5 MEDIUM

📋 TL;DR

CVE-2025-15338 is an incorrect default permissions vulnerability in Tanium Partner Integration that allows unauthorized access to sensitive functionality. Organizations using Tanium with Partner Integration enabled are affected. The vulnerability stems from overly permissive default settings that could be exploited by authenticated users.

💻 Affected Systems

Products:
  • Tanium Platform with Partner Integration
Versions: Specific versions not detailed in advisory; consult Tanium documentation
Operating Systems: All supported Tanium server platforms
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects systems with Partner Integration enabled. Standard Tanium deployments without partner integrations may not be vulnerable.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

An authenticated attacker could gain unauthorized access to partner integration features, potentially leading to data exfiltration, privilege escalation, or disruption of security operations.

🟠

Likely Case

Internal users with standard authentication could access partner integration functions beyond their intended permissions, leading to unauthorized data access or configuration changes.

🟢

If Mitigated

With proper access controls and monitoring, impact is limited to potential unauthorized access attempts that can be detected and blocked.

🌐 Internet-Facing: LOW - This vulnerability requires authentication and typically affects internal management interfaces not exposed to the internet.
🏢 Internal Only: MEDIUM - Internal authenticated users could exploit this to gain unauthorized access to partner integration features.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authenticated access to the Tanium platform. The vulnerability involves misconfigured permissions rather than complex code execution.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Refer to Tanium security advisory TAN-2025-029 for specific patched versions

Vendor Advisory: https://security.tanium.com/TAN-2025-029

Restart Required: Yes

Instructions:

1. Review Tanium advisory TAN-2025-029. 2. Update Tanium platform to recommended version. 3. Restart Tanium services. 4. Verify permissions are correctly configured post-update.

🔧 Temporary Workarounds

Disable Partner Integration

all

Temporarily disable Partner Integration features if not required

Consult Tanium documentation for disabling partner integrations

Review and Restrict Permissions

all

Manually review and tighten permissions for partner integration components

Use Tanium console to audit and modify user/role permissions

🧯 If You Can't Patch

  • Implement strict access controls and least privilege principles for all Tanium users
  • Enable detailed logging and monitoring for partner integration access attempts

🔍 How to Verify

Check if Vulnerable:

Check Tanium version and compare against patched versions in advisory TAN-2025-029

Check Version:

tanium version (on Tanium server) or check via Tanium console

Verify Fix Applied:

Verify Tanium version is updated to patched version and test partner integration permissions

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to partner integration APIs
  • Permission modification events
  • Unusual partner integration activity

Network Indicators:

  • Unexpected API calls to partner integration endpoints
  • Traffic to/from partner systems outside normal patterns

SIEM Query:

source="tanium" AND (event_type="permission_violation" OR api_endpoint="*partner*")

🔗 References

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