CVE-2025-15340 in Comply
Summary
by MITRE • 02/05/2026
Tanium addressed an incorrect default permissions vulnerability in Comply.
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Analysis
by VulDB Data Team • 02/06/2026
The vulnerability identified as CVE-2025-15340 represents a critical access control flaw within Tanium's Comply module that stems from improper default permission configurations. This issue affects the security posture of organizations relying on Tanium's compliance management platform, where default settings fail to properly restrict access to sensitive compliance data and administrative functions. The flaw allows unauthorized users to potentially gain elevated privileges or access restricted compliance information that should only be available to authorized administrators or compliance officers. This vulnerability directly impacts the principle of least privilege and could enable attackers to compromise compliance workflows and data integrity across enterprise environments.
The technical implementation of this vulnerability manifests through inadequate permission model design within the Comply component, where default user roles and access controls are improperly configured to grant excessive privileges. This misconfiguration typically occurs when the system assigns administrative or high-privilege permissions to default user accounts or groups without proper authorization checks. The flaw may involve hardcoded permissions, missing access control lists, or improper default role assignments that bypass normal authentication mechanisms. Attackers exploiting this vulnerability could potentially manipulate compliance reports, modify configuration settings, or access sensitive compliance data that should remain protected. The issue demonstrates a failure in secure configuration management practices and represents a classic case of insecure default settings that violate fundamental security principles.
From an operational impact perspective, this vulnerability exposes organizations to significant risks including unauthorized access to compliance data, potential data breaches, and compromise of audit trails that are critical for regulatory compliance. Organizations using Tanium Comply may face regulatory violations, increased audit risks, and potential legal consequences if compliance data becomes accessible to unauthorized parties. The vulnerability could also enable attackers to manipulate compliance reporting, potentially hiding malicious activities or compromising the integrity of compliance assessments. This flaw particularly affects industries with strict regulatory requirements such as financial services, healthcare, and government sectors where compliance data integrity is paramount. The impact extends beyond immediate security concerns to include business continuity risks and potential reputation damage from compliance failures.
Organizations should implement immediate mitigations including reviewing and correcting default permission settings within Tanium Comply, enforcing strict access controls, and conducting comprehensive audits of user roles and permissions. The recommended approach involves disabling unnecessary default accounts, implementing proper role-based access controls, and ensuring that all user accounts are assigned the minimum required privileges for their operational functions. Security teams should also monitor system logs for unauthorized access attempts and implement continuous monitoring of permission changes. This vulnerability aligns with CWE-276 which addresses improper permissions and access control issues, and maps to ATT&CK technique T1078 for valid accounts and privilege escalation. Organizations should prioritize applying Tanium's official security patches and updates, while also implementing additional security controls such as network segmentation and enhanced monitoring to reduce the attack surface and prevent exploitation of this access control weakness.