CVE-2020-5512 in Gila
Summary
by MITRE
Gila CMS 1.11.8 allows /admin/media?path=../ Path Traversal.
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Analysis
by VulDB Data Team • 03/19/2024
The vulnerability identified as CVE-2020-5512 affects Gila CMS version 1.11.8 and represents a critical path traversal flaw that enables unauthorized access to arbitrary files on the server. This vulnerability exists within the media management functionality of the content management system where the application fails to properly validate user-supplied input parameters. The specific issue manifests when the application processes the path parameter in the URL structure /admin/media?path=../, allowing attackers to traverse directory structures and access files outside the intended media directory. The flaw stems from inadequate input sanitization and validation mechanisms that permit directory traversal sequences to be processed without proper authorization checks.
This path traversal vulnerability falls under the CWE-22 category, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as directory traversal or path traversal attacks. The vulnerability enables attackers to bypass normal access controls and potentially access sensitive system files, configuration data, or other restricted resources that should not be accessible through the media management interface. The attack vector is particularly dangerous because it leverages the administrative interface, providing access to privileged functionality that could allow for further exploitation including code execution or data exfiltration. The vulnerability demonstrates a fundamental lack of input validation and proper access control enforcement within the application's file handling mechanisms.
The operational impact of this vulnerability extends beyond simple file access, as it can potentially lead to complete system compromise. An attacker exploiting this vulnerability could access database configuration files containing database credentials, application configuration files with sensitive settings, or even system files that could reveal the underlying server architecture and operating system details. The vulnerability also poses significant risk to data confidentiality and integrity, as it allows for arbitrary file reading that could expose sensitive information. In a production environment, this could result in unauthorized access to user data, application source code, or system-level information that could be leveraged for further attacks. The vulnerability affects not only the immediate file access capabilities but also represents a potential entry point for more sophisticated attacks that could escalate privileges or establish persistence within the affected system.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and sanitization mechanisms to prevent directory traversal sequences from being processed. The most effective immediate fix involves implementing strict input validation that rejects any path parameters containing directory traversal sequences such as ../ or ..\. Additionally, developers should enforce proper access controls that ensure users can only access files within their designated directories and implement the principle of least privilege for administrative interfaces. Organizations should also consider implementing web application firewalls that can detect and block known path traversal patterns, and establish regular security testing procedures including automated vulnerability scanning and manual penetration testing to identify similar flaws in other components. The remediation process should include updating the Gila CMS to a version that addresses this specific vulnerability, and implementing comprehensive logging and monitoring to detect potential exploitation attempts. Security patches should be applied promptly, and the application should be configured with appropriate file permissions that prevent unauthorized access to sensitive system files. The vulnerability also highlights the importance of regular security assessments and adherence to secure coding practices that prevent common web application flaws such as those described in the OWASP Top Ten project.