CVE-2005-0732 in Active Webcam
Summary
by MITRE
PY Software Active Webcam WebServer (webcam.exe) 5.5 allows remote attackers to obtain the full path of the web server via a request for a non-existent filename, which leaks the full path in an error message.
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Analysis
by VulDB Data Team • 06/21/2024
The vulnerability identified as CVE-2005-0732 affects PY Software Active Webcam WebServer version 5.5, representing a classic information disclosure flaw that exposes sensitive system details to remote attackers. This vulnerability resides within the web server component that handles HTTP requests and responses, specifically manifesting when the system processes requests for non-existent files. The flaw demonstrates a fundamental lack of proper error handling and input validation that directly compromises the security posture of the affected system.
The technical mechanism behind this vulnerability operates through the web server's response to malformed requests. When a remote attacker sends a request for a non-existent filename, the webcam.exe web server processes this request and generates an error response that inadvertently includes the full server path in the error message. This occurs because the software fails to sanitize error output or implement proper exception handling that would prevent sensitive path information from being exposed to external parties. The vulnerability is classified as a path disclosure issue that directly violates security best practices for web application development and system hardening.
The operational impact of this vulnerability extends beyond simple information disclosure, creating potential attack vectors for more sophisticated exploitation attempts. An attacker who successfully exploits this vulnerability gains knowledge of the server's file system structure, which can serve as a foundation for subsequent attacks including directory traversal, file inclusion, and privilege escalation attempts. The leaked path information provides attackers with crucial reconnaissance data that would otherwise be difficult to obtain through passive means. This vulnerability aligns with CWE-200, which specifically addresses improper exposure of sensitive information, and represents a clear violation of the principle of least privilege and defense in depth strategies.
The security implications of this vulnerability are significant within the context of web server security and application hardening practices. It demonstrates the critical importance of implementing proper error handling mechanisms and sanitizing all user inputs to prevent unintended information leakage. Attackers can leverage this information to craft more targeted attacks against the web server, potentially exploiting other vulnerabilities that might exist within the same system. The vulnerability also represents a failure in the principle of security through obscurity, where system details should not be exposed to unauthorized parties. From an ATT&CK framework perspective, this vulnerability maps to techniques related to reconnaissance and initial access, as it provides critical information that facilitates further exploitation efforts.
Mitigation strategies for this vulnerability should focus on implementing proper error handling mechanisms within the web server software. System administrators should ensure that error messages do not contain sensitive path information or system details that could aid attackers. The recommended approach includes configuring the web server to return generic error messages to remote users while logging detailed error information locally for administrative purposes. Additionally, implementing input validation and sanitization processes can prevent malformed requests from triggering the vulnerable code path. Regular security updates and patches should be applied to address known vulnerabilities, and the system should be configured to minimize information disclosure through error handling. Organizations should also consider implementing web application firewalls and security monitoring systems to detect and prevent exploitation attempts targeting this specific vulnerability. The vulnerability serves as a reminder of the critical importance of secure coding practices and proper error handling in preventing information disclosure attacks that can significantly compromise system security.