Splunk Enterprise Users Beware of Path Traversal Vulnerability

CVSScvssV3_1: 7.5

Splunk Enterprise, a popular data collection and analysis tool used by many organizations, is affected by a path traversal vulnerability in versions below 9.0.8 and 9.1.3 on Windows systems.

Attackers can exploit this vulnerability by crafting malicious input containing path traversal sequences. This input is not sanitized properly by the software and allows accessing files outside of the intended directory. The attacker’s malicious input gets deserialized, potentially executing code or accessing sensitive data on the system.

As Splunk collects and indexes log files from various sources, an attacker can leverage this vulnerability to include paths to log files they control or have placed malware in. When Splunk indexes these files, the malicious payloads get deserialized and executed on the system with Splunk’s privileges.

Splunk users are advised to immediately update to version 9.0.8 or higher to patch this vulnerability. Proper input sanitization is critical for any software processing external data to prevent path traversal and remote code execution attacks. Organizations should also review their Splunk configuration and installed applications for any other potential security weaknesses.

By taking prompt action to update Splunk, users can protect their systems from exploits of this vulnerability before attackers have a chance to take advantage. Staying on top of software updates is one of the best ways to enhance the security posture of organizations.