CVE-2012-0900 in Beehive Forum
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Beehive Forum 1.0.1 allow remote attackers to inject arbitrary web script or HTML via the PATH_INFO to (1) forum/register.php or (2) forum/logon.php.
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Analysis
by VulDB Data Team • 12/25/2024
The CVE-2012-0900 vulnerability represents a critical cross-site scripting flaw discovered in Beehive Forum version 1.0.1, a popular web-based discussion platform. This vulnerability specifically targets the application's handling of HTTP PATH_INFO parameters, which are used to pass additional information to web scripts through the URL path. The flaw exists in two primary locations within the forum's authentication and registration mechanisms, making it particularly dangerous as it can be exploited during user registration or login processes when attackers attempt to gain unauthorized access or manipulate user sessions. The vulnerability stems from insufficient input validation and sanitization of user-supplied data that flows directly into the application's output without proper encoding or filtering mechanisms.
The technical exploitation of this vulnerability occurs when remote attackers craft malicious URLs containing crafted script code within the PATH_INFO component that is passed to either forum/register.php or forum/logon.php. When the web application processes these parameters without adequate sanitization, the malicious code becomes embedded in the page output and executes within the context of the victim's browser session. This creates a persistent XSS vector that can be used to steal session cookies, redirect users to malicious sites, perform unauthorized actions on behalf of users, or even deface the forum interface. The vulnerability is classified as a classic reflected XSS attack where the malicious input is immediately reflected back to the user without proper HTML escaping or context-aware encoding.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it can enable attackers to establish persistent access to user accounts within the forum environment. An attacker could potentially harvest login credentials, manipulate user permissions, or create malicious posts that propagate to other forum members. The attack surface is particularly concerning because it targets core authentication pages where users are most likely to enter sensitive information. According to CWE-79, this vulnerability falls under the category of Cross-Site Scripting, which represents one of the most prevalent and dangerous web application security flaws in the industry. The vulnerability also maps to ATT&CK technique T1566.001, which describes the use of malicious web content to gain initial access to systems through social engineering or direct exploitation of web application vulnerabilities.
Mitigation strategies for CVE-2012-0900 should focus on immediate implementation of proper input validation and output encoding mechanisms within the affected application components. Organizations must ensure that all user-supplied input, particularly PATH_INFO parameters, undergoes strict sanitization and validation before being processed or displayed in web responses. The implementation of Content Security Policy headers and proper HTML encoding of dynamic content can significantly reduce the attack surface. Additionally, upgrading to a patched version of Beehive Forum or implementing web application firewalls with XSS detection capabilities provides layered defense against such attacks. Regular security testing including dynamic application security testing and manual penetration testing should be conducted to identify similar vulnerabilities in other web applications. The vulnerability serves as a reminder of the critical importance of input validation and output encoding in preventing XSS attacks, with industry best practices emphasizing the need for context-aware encoding and comprehensive security testing throughout the software development lifecycle.