CVE-2025-34294

Wazuh's File Integrity Monitoring (FIM), when configured with automatic threat removal, contains a time-of-check/time-of-use (TOCTOU) race condition that can allow a local, low-privileged attacker to cause the Wazuh service (running as NT AUTHORITY\SYSTEM) to delete attacker-controlled files or paths. The root cause is insufficient synchronization and lack of robust final-path validation in the threat-removal workflow: the agent records an active-response action and proceeds to perform deletion without guaranteeing the deletion target is the originally intended file. This can result in SYSTEM-level arbitrary file or folder deletion and consequent local privilege escalation. Wazuh made an attempted fix via pull request 8697 on 2025-07-10, but that change was incomplete.

CVSS

No CVSS.

References

Link	Resource
https://documentation.wazuh.com/current/user-manual/capabilities/active-response/index.html
https://github.com/wazuh/wazuh-documentation/pull/8697
https://wazuh.com/blog/detecting-and-responding-to-malicious-files-using-cdb-lists-and-active-response/
https://www.vulncheck.com/advisories/wazuh-file-integrity-monitoring-and-active-response-arbitrary-file-deletion-as-system

Configurations

No configuration.

History

28 Oct 2025, 16:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-28 16:15

Updated : 2025-10-28 16:15

NVD link : CVE-2025-34294

Mitre link : CVE-2025-34294

CVE.ORG link : CVE-2025-34294

JSON object : View

Products Affected

No product.

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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