CVE-2006-3247 in Deaf Forum
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in show.php in GL-SH Deaf Forum 6.4.3 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) search, (2) page, and (3) action parameters. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 07/12/2021
The vulnerability identified as CVE-2006-3247 represents a critical cross-site scripting flaw in the GL-SH Deaf Forum software version 6.4.3 and earlier. This issue affects the show.php script which serves as a core component of the forum's functionality, making it a prime target for malicious actors seeking to exploit web application vulnerabilities. The vulnerability stems from insufficient input validation and output sanitization mechanisms within the application's parameter handling system, creating an attack surface that allows remote code execution through malicious script injection.
The technical implementation of this vulnerability occurs through three specific parameter injection points: search, page, and action parameters within the show.php script. When these parameters receive unvalidated input from user requests, the application fails to properly sanitize or encode the data before rendering it in the web response. This lack of proper input filtering creates a condition where attackers can inject malicious HTML or JavaScript code that executes in the context of other users' browsers. The vulnerability operates under CWE-79 which classifies it as a Cross-Site Scripting weakness, specifically targeting the failure to sanitize user-supplied data before including it in web pages served to other users.
From an operational perspective, this vulnerability poses significant risks to forum users and administrators alike. Attackers can leverage these XSS flaws to steal session cookies, redirect users to malicious websites, deface forum content, or perform actions on behalf of authenticated users. The impact extends beyond simple data theft as the vulnerability can be exploited to establish persistent malicious presence within the forum environment, potentially leading to complete compromise of user accounts and forum integrity. The remote nature of the attack means that exploitation does not require physical access to the system, making it particularly dangerous in publicly accessible web applications.
The security implications of CVE-2006-3247 align with ATT&CK technique T1566 which covers Phishing with Malicious Attachments or Links, as attackers can craft malicious URLs that, when clicked by forum users, execute the injected scripts. This vulnerability also relates to T1059 which covers Command and Scripting Interpreter techniques, as the injected scripts can execute arbitrary commands on affected users' browsers. Organizations using GL-SH Deaf Forum software should implement immediate mitigations including input validation, output encoding, and parameter sanitization. The recommended approach includes implementing strict input validation for all user-supplied parameters, applying proper HTML encoding to output data, and implementing Content Security Policy headers to limit script execution. Additionally, upgrading to a patched version of the software or migrating to a more secure forum platform represents the most effective long-term solution to address this vulnerability and prevent exploitation attempts.