CVE-2025-15325: Tanium Discover SQLi Vulnerability

CVE-2025-15325 Overview

CVE-2025-15325 is an improper input validation vulnerability affecting Tanium Discover. This security flaw, classified under CWE-89 (SQL Injection), allows authenticated attackers to exploit insufficient input validation mechanisms within the Discover module. The vulnerability can be exploited over the network without requiring user interaction, potentially enabling unauthorized data access, modification, and service disruption.

Critical Impact

Authenticated attackers can exploit improper input validation in Tanium Discover to potentially execute SQL injection attacks, compromising data confidentiality, integrity, and availability.

Affected Products

• Tanium Discover (specific versions detailed in vendor advisory)

Discovery Timeline

• 2026-02-05 - CVE-2025-15325 published to NVD
• 2026-02-05 - Last updated in NVD database

Technical Details for CVE-2025-15325

Vulnerability Analysis

This vulnerability stems from improper input validation in Tanium Discover, a component used for network asset discovery and inventory management. The weakness is classified as CWE-89, indicating that user-supplied input is not adequately sanitized before being incorporated into SQL queries. This allows an authenticated attacker with network access to inject malicious SQL commands.

The vulnerability requires low privileges to exploit and does not need user interaction, making it relatively straightforward for an authenticated attacker to leverage. Successful exploitation can result in partial compromise of confidentiality, integrity, and availability of the affected system. Attackers could potentially read sensitive data, modify database contents, or disrupt normal operations.

Root Cause

The root cause of CVE-2025-15325 is insufficient input validation and sanitization in the Tanium Discover module. User-controlled input is processed without proper escaping or parameterization before being used in SQL queries, creating an injection point that attackers can exploit to manipulate database operations.

Attack Vector

The attack vector for this vulnerability is network-based, requiring the attacker to have low-level authenticated access to the Tanium environment. The attacker can craft malicious input containing SQL injection payloads and submit them through vulnerable input fields or API endpoints in the Discover module. Since no user interaction is required and the attack complexity is low, exploitation is relatively straightforward for authenticated attackers.

The vulnerability mechanism involves improper handling of user-supplied data in SQL query construction. When an attacker provides specially crafted input containing SQL metacharacters or commands, the application fails to properly sanitize this input, allowing the injected SQL to be executed against the underlying database. For detailed technical information, refer to Tanium Security Advisory TAN-2025-005.

Detection Methods for CVE-2025-15325

Indicators of Compromise

• Unusual or malformed SQL queries in database logs originating from Tanium Discover components
• Unexpected database errors or exceptions indicating SQL syntax violations
• Anomalous data access patterns or bulk data retrieval from authenticated users
• Evidence of SQL injection patterns in web application logs (e.g., single quotes, UNION statements, comment sequences)

Detection Strategies

• Implement SQL injection detection rules in WAF or IDS/IPS systems to identify malicious input patterns
• Monitor Tanium Discover application logs for suspicious input containing SQL metacharacters
• Enable database query auditing to track and alert on unusual query patterns or errors
• Deploy endpoint detection solutions like SentinelOne to identify post-exploitation behavior

Monitoring Recommendations

• Enable verbose logging for Tanium Discover authentication and query activities
• Configure alerts for failed SQL queries or database connection anomalies
• Implement real-time monitoring of database access patterns from Tanium components
• Review access logs regularly for signs of enumeration or unauthorized data retrieval attempts

How to Mitigate CVE-2025-15325

Immediate Actions Required

• Apply the security patch provided by Tanium as documented in advisory TAN-2025-005
• Review access controls to ensure only necessary users have authenticated access to Tanium Discover
• Implement network segmentation to limit exposure of Tanium infrastructure
• Enable enhanced logging and monitoring for the Discover module

Patch Information

Tanium has addressed this vulnerability and released security updates. Organizations should review Tanium Security Advisory TAN-2025-005 for specific patch details and update instructions. Ensure all Tanium Discover instances are updated to the patched version as soon as possible.

Workarounds

• Restrict network access to Tanium Discover to only trusted IP addresses and networks
• Implement additional input validation at the network perimeter using a Web Application Firewall (WAF)
• Review and minimize user privileges within Tanium to reduce the attack surface
• Consider temporarily disabling or isolating vulnerable Discover functionality until patching is complete

Organizations should implement defense-in-depth strategies by combining patching with network controls and monitoring. Ensure that database accounts used by Tanium Discover follow the principle of least privilege to minimize the impact of potential exploitation.