CVE-2025-15337: Tanium Patch Privilege Escalation Flaw

CVE-2025-15337 Overview

CVE-2025-15337 is an incorrect default permissions vulnerability (CWE-276) affecting Tanium Patch. This security flaw stems from improper permission configurations that could allow unauthorized access to sensitive resources or functionality within the Tanium Patch component.

Critical Impact

An attacker with high privileges could exploit this vulnerability over the network to gain unauthorized access to confidential data and potentially modify system configurations, compromising both confidentiality and integrity.

Affected Products

• Tanium Patch (specific versions detailed in vendor advisory)

Discovery Timeline

• 2026-02-05 - CVE CVE-2025-15337 published to NVD
• 2026-02-05 - Last updated in NVD database

Technical Details for CVE-2025-15337

Vulnerability Analysis

This vulnerability represents an incorrect default permissions issue classified under CWE-276 (Incorrect Default Permissions). The flaw exists within Tanium Patch, an endpoint management solution used for patch deployment and compliance across enterprise environments.

The vulnerability can be exploited remotely over the network with low attack complexity, though it requires high-level privileges to execute. Successful exploitation does not require user interaction and affects the confidentiality and integrity of the vulnerable system without impacting availability.

Organizations using Tanium Patch should treat this as a significant security concern given the privileged nature of patch management systems within enterprise infrastructure.

Root Cause

The root cause of CVE-2025-15337 is CWE-276: Incorrect Default Permissions. This weakness occurs when a software installation or configuration process establishes default permissions that grant unintended access to resources, files, or functionality. In the context of Tanium Patch, the default permission settings do not adequately restrict access, potentially allowing privileged users to access or modify resources beyond their intended scope.

Attack Vector

The attack vector for this vulnerability is network-based, meaning an attacker can exploit it remotely without requiring local access to the target system. The exploitation requires:

• Network accessibility to the Tanium Patch component
• High-level privileges on the target system
• No user interaction required for successful exploitation

An attacker meeting these prerequisites could leverage the incorrect default permissions to access sensitive configuration data or make unauthorized modifications to the patch management system, potentially affecting the security posture of managed endpoints across the enterprise.

Detection Methods for CVE-2025-15337

Indicators of Compromise

• Unexpected changes to Tanium Patch configuration files or permission settings
• Anomalous access patterns to Tanium Patch resources from privileged accounts
• Unauthorized modifications to patch deployment policies or schedules
• Unusual administrative activities within the Tanium console that deviate from established baselines

Detection Strategies

• Review Tanium Patch access logs for unauthorized resource access attempts
• Monitor for permission changes on Tanium Patch installation directories and configuration files
• Implement file integrity monitoring on critical Tanium Patch components
• Audit privileged user activities within the Tanium environment for policy violations

Monitoring Recommendations

• Enable comprehensive audit logging for all Tanium Patch administrative operations
• Configure alerts for permission modifications on Tanium-related directories and files
• Establish baseline behavior for privileged accounts and monitor for deviations
• Integrate Tanium logs with SIEM solutions for centralized security monitoring

How to Mitigate CVE-2025-15337

Immediate Actions Required

• Review the Tanium Security Advisory TAN-2025-029 for specific remediation guidance
• Audit current permission configurations on Tanium Patch installations
• Restrict network access to Tanium Patch components using firewall rules
• Review and minimize the number of accounts with high-level privileges to Tanium systems

Patch Information

Tanium has addressed this vulnerability in a security update. Organizations should consult the Tanium Security Advisory TAN-2025-029 for detailed patch information, affected versions, and upgrade instructions. Apply the latest security patches from Tanium as soon as possible following your organization's change management procedures.

Workarounds

• Implement strict network segmentation to limit access to Tanium Patch components
• Apply the principle of least privilege to all accounts accessing Tanium systems
• Manually review and harden default permissions on Tanium Patch directories and files
• Enable multi-factor authentication for all administrative access to Tanium infrastructure

# Example: Restrict network access to Tanium Patch (adjust for your environment)
# Limit access to Tanium Patch ports to authorized management networks only
iptables -A INPUT -p tcp --dport 17472 -s <authorized_network> -j ACCEPT
iptables -A INPUT -p tcp --dport 17472 -j DROP