CVE-2006-3365 in V3 Chat
Summary
by MITRE
V3 Chat allows remote attackers to obtain the installation path via (1) an invalid id parameter to mail/index.php or (2) membername parameter to messenger/online.php, which displays the path in an error page due to an incorrect SQL statement.
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Analysis
by VulDB Data Team • 09/18/2017
The vulnerability identified as CVE-2006-3365 affects V3 Chat software and represents a classic information disclosure flaw that exposes sensitive system paths to remote attackers. This vulnerability stems from improper error handling mechanisms within the application's database interaction code, specifically when processing user-supplied parameters. The flaw manifests in two distinct attack vectors that leverage malformed input to trigger error messages containing the absolute installation path of the vulnerable system.
The technical implementation of this vulnerability involves SQL injection patterns where the application fails to properly sanitize or validate user input before incorporating it into database queries. When an attacker supplies an invalid id parameter to mail/index.php or a membername parameter to messenger/online.php, the application processes these inputs through an incorrect SQL statement that generates an error message. This error message inadvertently reveals the complete file system path where the application is installed, providing attackers with critical information about the server environment structure.
From an operational perspective, this vulnerability significantly increases the attack surface for potential adversaries by exposing the application's installation path, which can be used for further exploitation attempts. The disclosed path information enables attackers to craft more sophisticated attacks, including directory traversal exploits, file inclusion vulnerabilities, or targeted attacks against specific system components. This information disclosure aligns with CWE-209, which categorizes improper error handling as a weakness that can lead to information exposure, and represents a clear violation of the principle of least privilege in system security design.
The impact of this vulnerability extends beyond simple path disclosure, as it provides attackers with foundational knowledge necessary for advanced exploitation techniques. The exposed installation paths can be leveraged in conjunction with other vulnerabilities to perform more targeted attacks, potentially leading to complete system compromise. Security practitioners should note that this vulnerability demonstrates poor input validation practices and inadequate error handling that violates fundamental security principles established in the OWASP Top Ten and NIST cybersecurity frameworks.
Mitigation strategies for CVE-2006-3365 should focus on implementing proper input validation and error handling mechanisms throughout the application code. All user-supplied parameters must be sanitized and validated before being incorporated into database queries, with appropriate error handling that does not expose system information to end users. The application should implement prepared statements or parameterized queries to prevent SQL injection attacks, while also ensuring that error messages do not contain sensitive path information. Additionally, system administrators should consider implementing web application firewalls and security monitoring solutions to detect and prevent exploitation attempts targeting this vulnerability, aligning with the MITRE ATT&CK framework's approach to identifying and mitigating reconnaissance and initial access phases of cyber attacks.