DriveLock Directory Traversal Vulnerability Exposes Sensitive System Information

Executive Summary

A directory traversal vulnerability in the DriveLock endpoint security platform, tracked as CVE-2026-5492, allows authenticated attackers to read arbitrary files on the underlying Windows system. According to an advisory from the Zero Day Initiative (ZDI), which discovered and reported the flaw, the vulnerability stems from a lack of proper validation of user-supplied path traversal sequences (../). Successful exploitation could lead to the disclosure of sensitive operating system files, application configurations, or other data, with a CVSS v3.1 base score of 6.5 (Medium severity).

Technical Analysis

The vulnerability resides within DriveLock's file handling mechanisms. According to ZDI's technical write-up, the software fails to adequately sanitize user input within a specific function designed to retrieve file information. An attacker with valid authentication can submit a crafted request containing directory traversal sequences (e.g., ../../windows/system32/config/SAM). The application then concatenates this unsanitized input to a base path, allowing the attacker to break out of the intended directory and read files from any location accessible to the DriveLock service account.

The flaw is classified as an information disclosure vulnerability. While exploitation requires an attacker to possess valid credentials, the impact is the unauthorized access to files that should be restricted. The specific files accessible would depend on the permissions of the service account running the DriveLock application, which typically runs with SYSTEM or another privileged account on Windows systems. This could grant access to critical system files, password hashes from the Security Account Manager (SAM), or other sensitive configuration data that could facilitate further attacks.

Tactics, Techniques & Procedures

Based on the ZDI advisory, the primary technique employed would be T1552.001: Unsecured Credentials - Credentials In Files, as an attacker could leverage this flaw to search for and extract stored credentials. The initial access vector prerequisite is T1078: Valid Accounts, as authentication is required to trigger the vulnerable function. The exploitation aligns with the broader tactic of TA0006: Credential Access.

Threat Actor Context

There is no evidence of active exploitation in the wild at the time of ZDI's publication. The vulnerability was responsibly disclosed by ZDI to the vendor, and a patch has been issued. The flaw would be most attractive to threat actors who have already gained a foothold on a network and obtained credentials for a DriveLock user account, potentially using it for lateral movement and privilege escalation by harvesting credentials from compromised systems.

Mitigations & Recommendations

The primary mitigation is to apply the vendor-provided security update for DriveLock. Organizations using the affected software should prioritize patching, especially on servers and management consoles. As a workaround until patching is possible, network administrators should restrict access to the DriveLock management interface to only trusted, necessary users and implement strict network segmentation. Furthermore, adhering to the principle of least privilege for all service accounts can help limit the potential damage if this or a similar vulnerability is exploited.