CVE-2024-36267 in Redmine DMSF Plugin
Summary
by MITRE • 05/30/2024
Path traversal vulnerability exists in Redmine DMSF Plugin versions prior to 3.1.4. If this vulnerability is exploited, a logged-in user may obtain or delete arbitrary files on the server (within the privilege of the Redmine process).
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Analysis
by VulDB Data Team • 05/30/2024
The vulnerability identified as CVE-2024-36267 represents a critical path traversal flaw within the Redmine DMSF Plugin, affecting versions prior to 3.1.4. This issue arises from insufficient input validation and sanitization mechanisms that fail to properly restrict file access operations. The vulnerability exists in the plugin's handling of file path parameters, allowing attackers to manipulate file system access through crafted requests that bypass normal security boundaries.
The technical implementation of this flaw stems from improper validation of user-supplied input within the plugin's file management functions. When a logged-in user submits requests containing specially crafted path parameters, the application fails to adequately sanitize these inputs before processing file operations. This weakness enables attackers to traverse the file system hierarchy and access files that should remain restricted. The vulnerability specifically impacts the plugin's ability to properly validate and restrict file access paths, creating opportunities for arbitrary file read and delete operations.
From an operational perspective, this vulnerability presents a severe risk to Redmine installations using the affected DMSF plugin. An attacker with valid login credentials can leverage this flaw to access sensitive files including configuration data, database credentials, application source code, and potentially system-level files. The impact extends beyond simple information disclosure as the vulnerability also permits file deletion operations, potentially leading to complete system compromise or denial of service conditions. The attack surface is limited to authenticated users, but this requirement significantly reduces the barrier to exploitation in environments where credential theft or social engineering attacks are possible.
The vulnerability aligns with CWE-22 Path Traversal and CWE-77 Path Traversal in the Common Weakness Enumeration catalog, specifically addressing improper input validation in file system operations. From an adversarial perspective, this flaw maps to ATT&CK technique T1078 Valid Accounts for initial access and T1566 Phishing for credential acquisition, while also supporting T1083 File and Directory Discovery and T1005 Data from Local System techniques. The attack chain typically begins with user authentication followed by exploitation of the path traversal mechanism to escalate privileges within the file system boundaries.
Mitigation strategies should prioritize immediate patching to version 3.1.4 or later, which includes proper input validation and path sanitization measures. Organizations should also implement additional security controls including restricting file system permissions for the Redmine process, implementing web application firewalls with path traversal detection capabilities, and conducting regular security assessments of plugin components. Network segmentation and access control measures should limit the impact of potential exploitation by reducing the attack surface available to authenticated users. Regular monitoring of file system access patterns and implementing automated security scanning tools can help detect anomalous behavior indicative of exploitation attempts.