CVE-2008-6854 in Absolute Faq Manager .net
Summary
by MITRE
Xigla Software Absolute FAQ Manager.NET 6.0 allows remote attackers to bypass authentication and gain administrative access by setting a cookie to a certain value.
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Analysis
by VulDB Data Team • 11/09/2024
The vulnerability identified as CVE-2008-6854 affects Xigla Software Absolute FAQ Manager.NET version 6.0, representing a critical authentication bypass flaw that exposes the application to unauthorized administrative access. This issue stems from improper cookie validation mechanisms within the application's authentication system, allowing remote attackers to manipulate session tokens and elevate their privileges without legitimate credentials. The vulnerability specifically targets the cookie-based authentication scheme used by the software, making it particularly dangerous as it can be exploited from any remote location without requiring physical access to the system or prior authentication.
The technical implementation of this flaw involves the application's failure to properly validate cookie values during the authentication process. When an attacker sets a specific cookie value, the system incorrectly accepts this manipulated token as valid administrative credentials, effectively circumventing the normal authentication flow. This type of vulnerability falls under CWE-287, which addresses improper authentication mechanisms, and represents a classic example of insecure session management where cookie values are not adequately validated or sanitized. The flaw demonstrates a fundamental weakness in the application's security architecture, where the system relies on client-side cookie manipulation to determine access levels rather than implementing robust server-side validation controls.
From an operational impact perspective, this vulnerability creates a severe security risk for organizations using the affected software, as it allows attackers to gain full administrative privileges without detection. The remote exploitation capability means that attackers can compromise the system from anywhere on the internet, potentially leading to complete system takeover, data exfiltration, and unauthorized modifications to the FAQ content management system. The vulnerability directly maps to ATT&CK technique T1078.004, which covers legitimate credentials, and T1566.001, which involves spearphishing with links, as attackers could exploit this vulnerability to establish persistent access. Organizations relying on this software face significant risks including unauthorized content modification, potential data breaches, and complete loss of control over their FAQ management infrastructure.
Mitigation strategies for this vulnerability should focus on immediate patching of the affected software to address the cookie validation flaw, followed by implementation of robust session management controls. Organizations should enforce secure cookie attributes including HttpOnly, Secure, and SameSite flags to prevent client-side manipulation. The application should implement proper input validation and sanitization for all cookie values, ensuring that authentication tokens are verified against legitimate session data stored server-side. Additionally, implementing multi-factor authentication mechanisms and regular security audits of authentication systems can help detect and prevent similar vulnerabilities. Network segmentation and monitoring solutions should be deployed to detect suspicious cookie manipulation attempts and unauthorized administrative access patterns. The vulnerability also highlights the importance of following secure coding practices as outlined in OWASP Top Ten and NIST guidelines for preventing authentication bypass issues in web applications.