CVE-2002-2158 in Zentrack
Summary
by MITRE
zenTrack 2.0.3 and earlier allows remote attackers to obtain the full path to the web root via an invalid ticket ID, which leaks the path in an error message.
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Analysis
by VulDB Data Team • 06/28/2021
The vulnerability described in CVE-2002-2158 affects zenTrack 2.0.3 and earlier versions, representing a classic information disclosure flaw that exposes system paths to remote attackers. This issue manifests when the application processes invalid ticket IDs, resulting in error messages that inadvertently reveal the complete file system path to the web root directory. The vulnerability falls under the category of improper error handling and information exposure, which are common patterns in web application security flaws that can provide attackers with valuable reconnaissance information. Such path disclosure vulnerabilities are particularly dangerous because they can serve as a foundation for more sophisticated attacks by providing attackers with knowledge of the underlying system structure.
The technical implementation of this vulnerability stems from the application's failure to properly sanitize or handle invalid input parameters. When a user submits an invalid ticket ID to the zenTrack application, the system generates an error message that includes the full file path to the web root as part of the error output. This occurs because the application does not implement proper input validation or error handling mechanisms that would prevent sensitive system information from being exposed in error messages. The flaw is particularly severe because it directly exposes the web server's file system structure, which can include sensitive directory paths and potentially reveal the operating system type or web server configuration. This type of vulnerability is classified as CWE-209, which specifically addresses information exposure through error messages, and it aligns with ATT&CK technique T1212 by exposing system information that can be used for further exploitation.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with critical reconnaissance data that can be leveraged for subsequent attacks. The leaked path information can help attackers understand the application's deployment structure, potentially revealing the presence of sensitive files, directory permissions, or system configurations that could aid in privilege escalation or further exploitation. Attackers can use this information to craft more targeted attacks, such as directory traversal attempts or file inclusion vulnerabilities, by understanding the actual file system layout. The vulnerability also poses risks to the application's overall security posture by reducing the attack surface complexity for malicious actors who can now bypass certain security measures that would otherwise require more extensive reconnaissance. This flaw particularly affects organizations using older versions of zenTrack, where the application may be running in production environments with limited security controls or monitoring.
Mitigation strategies for CVE-2002-2158 should focus on implementing proper error handling and input validation mechanisms within the zenTrack application. Organizations should ensure that all error messages are sanitized to prevent the inclusion of system paths or other sensitive information, which aligns with security best practices outlined in OWASP Top Ten and NIST guidelines. The recommended approach includes configuring the application to display generic error messages to end users while logging detailed technical information internally for administrators. Additionally, upgrading to versions of zenTrack beyond 2.0.3 is essential, as newer releases typically include improved security measures and proper error handling mechanisms. System administrators should also implement monitoring and logging of error conditions to detect potential exploitation attempts and establish proper input validation at all entry points to prevent similar vulnerabilities from occurring in other parts of the application. This vulnerability demonstrates the critical importance of secure coding practices and proper error handling in preventing information disclosure attacks that can significantly compromise system security.