CVE-2006-2897 in FunkBoard
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in FunkBoard 0.71 allows remote attackers to inject arbitrary HTML or web script via unspecified vectors.
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Analysis
by VulDB Data Team • 07/28/2018
The vulnerability identified as CVE-2006-2897 represents a critical cross-site scripting flaw discovered in FunkBoard version 0.71, a web-based discussion forum software that was widely used in enterprise environments during the mid-2000s. This vulnerability falls under the category of CWE-79 which specifically addresses Cross-Site Scripting flaws, where the application fails to properly validate or escape user-supplied input before incorporating it into web pages served to other users. The affected FunkBoard version demonstrates a fundamental weakness in its input sanitization mechanisms, creating an environment where malicious actors can exploit the system to inject arbitrary HTML or JavaScript code into web pages viewed by other users.
The technical exploitation of this vulnerability occurs through unspecified vectors within the FunkBoard application's data handling processes, likely involving user profile information, message content, or forum parameters that are not adequately sanitized before being rendered in web browsers. Attackers can craft malicious payloads that, when executed, can perform unauthorized actions on behalf of victims, including stealing session cookies, redirecting users to malicious websites, or modifying forum content. The unspecified nature of the attack vectors suggests that multiple entry points within the application may be susceptible to this type of injection attack, making the vulnerability particularly dangerous as it could be exploited through various user interaction points.
The operational impact of this vulnerability extends beyond simple data corruption or content modification, as it provides attackers with persistent access to user sessions and potentially sensitive forum data. When users browse forum pages containing malicious scripts, their browsers execute the injected code, which can lead to complete session hijacking, unauthorized posting of malicious content, or redirection to phishing sites. The vulnerability creates a persistent threat vector that remains active as long as the vulnerable version of FunkBoard remains deployed, allowing attackers to maintain access to forum communities and potentially use the compromised systems as launch points for further attacks within the network infrastructure.
Security professionals should immediately implement mitigations including upgrading to the latest version of FunkBoard that contains proper input validation and output encoding mechanisms. The remediation strategy must include comprehensive input sanitization of all user-supplied data, implementation of proper HTML escaping for dynamic content, and deployment of web application firewalls that can detect and block XSS attack patterns. Organizations should also consider implementing content security policies to prevent execution of unauthorized scripts and establish regular security audits to identify similar vulnerabilities in legacy web applications. This vulnerability exemplifies the importance of proper input validation practices as outlined in the OWASP Top Ten and aligns with ATT&CK technique T1059.002 for command and scripting interpreter, demonstrating how seemingly minor input handling flaws can create significant security risks in web applications.