CVE-2008-2838 in Traindepot
Summary
by MITRE
Directory traversal vulnerability in index.php in Traindepot 0.1 allows remote attackers to read arbitrary files via a .. (dot dot) in the module parameter.
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Analysis
by VulDB Data Team • 10/28/2024
The vulnerability described in CVE-2008-2838 represents a classic directory traversal flaw that affects the Traindepot 0.1 web application. This issue resides in the index.php file where the module parameter fails to properly validate user input, creating an opportunity for malicious actors to access files outside the intended directory structure. The vulnerability specifically manifests when attackers manipulate the module parameter using .. (dot dot) sequences, which are standard Unix/Linux path traversal indicators. This allows unauthorized access to arbitrary files on the server filesystem, potentially exposing sensitive data, configuration files, or system resources that should remain protected from remote access.
The technical exploitation of this vulnerability falls under CWE-22, which categorizes directory traversal attacks as a fundamental weakness in input validation. Attackers can construct malicious URLs that include directory traversal sequences such as ../../etc/passwd or ../../../windows/system32/drivers/etc/hosts, enabling them to read files that exist outside the web application's designated directory. The flaw occurs because the application does not sanitize or validate the module parameter before processing it, allowing the web server to interpret the traversal sequences and return contents of files that are normally restricted. This vulnerability is particularly dangerous because it can be exploited without authentication and can potentially reveal critical system information, application source code, or database credentials that are stored in accessible files.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can enable further attacks within the compromised system. Security researchers have documented that such directory traversal vulnerabilities often serve as stepping stones for more sophisticated attacks, including remote code execution, privilege escalation, or data exfiltration. The vulnerability affects any system running Traindepot 0.1 that is accessible over the network, making it a critical concern for organizations that have not updated their systems. From an ATT&CK framework perspective, this vulnerability maps to T1083 (File and Directory Discovery) and T1566 (Phishing with Malicious Attachments), as attackers can use the information gathered through directory traversal to craft more targeted attacks. The impact is particularly severe in environments where the web application has access to sensitive data or system files, as the vulnerability could expose complete system configurations, user credentials, or proprietary business information.
Mitigation strategies for this vulnerability should include immediate input validation and sanitization of all user-supplied parameters, particularly those used to determine file paths or module locations. Organizations should implement proper path normalization and validation techniques that prevent directory traversal sequences from being processed. The recommended approach involves using allowlists of valid module names or implementing strict input filtering that removes or encodes dangerous characters. Additionally, the web application should be configured to run with minimal privileges, ensuring that even if exploitation occurs, the attacker's access remains limited. Security patches for Traindepot 0.1 should be applied immediately, as this vulnerability has been widely documented and exploited in the wild. System administrators should also implement network-level controls such as web application firewalls to detect and block suspicious traversal attempts, and regular security audits should verify that no other similar vulnerabilities exist within the application or its dependencies.