CVE-2008-6863 in Absolute Form Processor.net
Summary
by MITRE
Xigla Software Absolute Form Processor .NET 4.0 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-2008-6863 affects Xigla Software Absolute Form Processor .NET 4.0, a web application framework designed for form processing and data handling. This critical authentication bypass flaw resides within the application's cookie-based session management mechanism, representing a fundamental weakness in the software's security architecture. The vulnerability specifically targets the authentication validation process that occurs when users attempt to access administrative functions within the form processor interface.
The technical flaw manifests through improper cookie validation within the application's authentication routine. Attackers can exploit this weakness by manipulating the authentication cookie value to a predetermined string that circumvents the normal authentication checks. This allows unauthorized users to assume administrative privileges without proper credentials, effectively granting them complete control over the application's administrative functions. The vulnerability stems from inadequate input validation and insufficient session management controls that fail to properly verify the authenticity of cookie values before granting access rights.
The operational impact of this vulnerability is severe and far-reaching within the affected environment. Remote attackers can exploit this weakness from any location without requiring physical access or legitimate credentials, making it particularly dangerous for web-based applications. Once authenticated as administrators, attackers can perform any administrative function including modifying form configurations, accessing sensitive data, adding or removing users, and potentially compromising the entire application infrastructure. The vulnerability creates a persistent backdoor that can remain undetected for extended periods, allowing attackers to maintain access and conduct further malicious activities.
Organizations utilizing Xigla Software Absolute Form Processor .NET 4.0 must implement immediate mitigations to address this security gap. The primary solution involves patching the application to properly validate cookie values and implement robust session management controls that prevent unauthorized privilege escalation. Security professionals should also consider implementing additional layers of protection such as cookie encryption, secure flag enforcement, and proper session timeout mechanisms. Network-level controls including web application firewalls and intrusion detection systems can help detect and block exploitation attempts. This vulnerability aligns with CWE-287 which addresses improper authentication issues and represents a clear violation of the principle of least privilege. From an ATT&CK perspective, this vulnerability maps to privilege escalation techniques and credential access methods, specifically targeting the T1078 credential access sub-technique and T1068 privilege escalation tactics that adversaries commonly employ to gain administrative control over web applications.