CVE-2008-2961 in CMS Mini
Summary
by MITRE
Multiple directory traversal vulnerabilities in view/index.php in CMS Mini 0.2.2 allow remote attackers to read arbitrary local files via a .. (dot dot) in the (1) path and (2) p parameter.
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Analysis
by VulDB Data Team • 10/29/2024
The vulnerability identified as CVE-2008-2961 represents a critical directory traversal flaw within CMS Mini version 0.2.2, specifically affecting the view/index.php component. This vulnerability stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied parameters before processing them within the application's file system operations. The flaw manifests when attackers manipulate the path and p parameters through directory traversal sequences using the .. (dot dot) notation, enabling unauthorized access to arbitrary local files on the server hosting the vulnerable CMS. Such vulnerabilities fall under the category of CWE-22 - Improper Limitation of a Pathname to a Restricted Directory, which is a fundamental security weakness in file system access controls that has been consistently documented in cybersecurity literature since the early 2000s.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious requests containing sequences like ../../etc/passwd or ../../../windows/system32/drivers/etc/hosts in either the path or p parameters of the view/index.php endpoint. The application processes these unvalidated inputs directly without proper sanitization or validation, leading to the inclusion of files from unintended directories. This type of vulnerability allows attackers to bypass normal access controls and retrieve sensitive information such as system configuration files, database credentials, application source code, or other confidential data stored on the server. The vulnerability is particularly dangerous because it can be exploited remotely without requiring authentication, making it an attractive target for automated scanning tools and malicious actors seeking to compromise web applications. The attack pattern aligns with ATT&CK technique T1083 - File and Directory Discovery, which describes methods used by adversaries to enumerate files and directories on compromised systems.
The operational impact of CVE-2008-2961 extends beyond simple information disclosure, as successful exploitation can lead to complete system compromise when combined with other vulnerabilities or attack vectors. An attacker who successfully exploits this vulnerability can obtain sensitive system files that may contain database connection strings, cryptographic keys, or application configuration details that could facilitate further attacks. The vulnerability also enables potential privilege escalation scenarios when sensitive files containing administrative credentials or session tokens are accessible through the directory traversal attack. Organizations running CMS Mini 0.2.2 are particularly at risk since this version predates modern security hardening practices and lacks proper input validation mechanisms that would prevent such attacks. The vulnerability demonstrates a critical failure in the application's security architecture and represents a common pattern of insecure programming practices that have been documented in numerous security assessments and penetration testing reports over the years. The lack of proper parameter validation in the file inclusion mechanisms creates a persistent threat that can be exploited by any attacker with knowledge of the application's structure, making it a significant concern for organizations maintaining legacy web applications.
Mitigation strategies for CVE-2008-2961 should focus on immediate remediation through input validation and parameter sanitization. Organizations should implement proper input filtering that rejects or encodes directory traversal sequences in all user-supplied parameters before processing them within the application. The most effective approach involves implementing a whitelist-based validation system that only allows predefined safe characters and path structures, rather than attempting to blacklist dangerous patterns which can be easily bypassed. Additionally, implementing proper access controls and privilege separation ensures that even if an attacker successfully exploits the vulnerability, they cannot access critical system files or perform unauthorized operations. The application should also be updated to a newer version of CMS Mini that includes proper security patches and input validation mechanisms. Security monitoring should be enhanced to detect unusual file access patterns that may indicate exploitation attempts. Organizations should also implement web application firewalls and security scanning tools that can detect and block directory traversal attempts. The vulnerability underscores the importance of following secure coding practices and conducting regular security assessments to identify and remediate similar weaknesses in web applications. The remediation process should also include comprehensive testing to ensure that the implemented fixes do not introduce new vulnerabilities or break existing functionality.