CVE-2007-0597 in Aztek
Summary
by MITRE
Aztek Forum 4.00 allows remote attackers to obtain sensitive information via a direct request to forum.php with the fid=XD query string, which reveals the path in an error message.
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Analysis
by VulDB Data Team • 08/18/2018
The vulnerability identified as CVE-2007-0597 affects Aztek Forum version 4.00 and represents a classic information disclosure flaw that exposes system paths through improper error handling mechanisms. This issue arises when attackers make direct requests to the forum.php script with the fid=XD parameter, causing the application to generate error messages that inadvertently reveal critical filesystem paths. The vulnerability demonstrates a fundamental weakness in the application's error reporting system where sensitive operational details are exposed to unauthenticated remote attackers without proper input validation or sanitization.
From a technical perspective, this vulnerability operates as an information disclosure attack vector that violates several security principles outlined in the CWE (Common Weakness Enumeration) catalog under CWE-200, which specifically addresses "Information Exposure." The flaw occurs because the forum application fails to properly validate user input parameters before processing them, allowing malicious actors to craft requests that trigger error conditions containing system path information. This type of vulnerability falls under the broader category of insecure error handling practices that have been consistently identified as critical security weaknesses in web applications.
The operational impact of this vulnerability extends beyond simple information gathering, as the exposed paths can provide attackers with crucial intelligence for subsequent exploitation attempts. When attackers obtain these path details, they gain insights into the server's directory structure, which can facilitate more sophisticated attacks such as path traversal exploits, local file inclusion vulnerabilities, or targeted attacks against specific system components. The vulnerability represents a significant risk to system integrity because it provides adversaries with the exact locations where application files reside, potentially enabling them to craft more effective attack payloads. This type of information exposure aligns with techniques documented in the MITRE ATT&CK framework under the T1083 technique for discovering system information, where adversaries systematically gather data about the target environment.
Security mitigations for this vulnerability should focus on implementing proper input validation and error handling procedures that prevent the exposure of system paths in error messages. Organizations should ensure that all user-supplied input parameters are properly sanitized and validated before being processed by the application. The recommended approach involves configuring the web application to display generic error messages to users while logging detailed technical information internally for administrators. Additionally, implementing proper access controls and input filtering mechanisms can prevent malicious actors from exploiting the vulnerability through crafted requests. This remediation strategy addresses the core weakness identified in the vulnerability while aligning with industry best practices for secure coding and defensive programming as recommended by OWASP and other security frameworks. The fix should also include implementing proper error handling that does not expose sensitive system information while maintaining adequate logging for legitimate troubleshooting purposes.