CVE-2006-6647 in MySite
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the MySite 4.7.x before 4.7.x-3.3 and 5.x before 5.x-1.3 module for Drupal allows remote attackers to inject arbitrary web script or HTML via the Title field when editing a page. NOTE: some details were obtained from third party information.
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Analysis
by VulDB Data Team • 08/11/2018
This cross-site scripting vulnerability exists within the MySite module for Drupal platforms, specifically affecting versions 4.7.x prior to 4.7.x-3.3 and 5.x prior to 5.x-1.3. The flaw resides in the improper sanitization of user input within the Title field during page editing operations, creating a persistent security weakness that allows malicious actors to execute arbitrary web scripts or HTML code within the context of affected user sessions. The vulnerability represents a classic XSS attack vector where attacker-controlled content is injected into web applications without proper validation or encoding mechanisms.
The technical implementation of this vulnerability stems from inadequate input filtering and output encoding practices within the MySite module's page editing functionality. When users edit pages through the administrative interface, the Title field value is not properly sanitized before being rendered back to the browser, enabling attackers to embed malicious JavaScript code or HTML elements that execute in the context of other users' browsers. This type of vulnerability falls under CWE-79, which specifically addresses Cross-Site Scripting flaws in web applications. The attack typically involves crafting malicious payloads that exploit the lack of proper input validation, allowing the injected code to execute with the privileges of the victim user.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to perform various malicious activities including session hijacking, credential theft, defacement of web content, and redirection to malicious websites. An attacker could craft a malicious Title field containing JavaScript code that steals cookies or session tokens, potentially gaining unauthorized access to user accounts or administrative privileges. The vulnerability affects not just the immediate execution environment but also compromises the integrity of the entire Drupal site, as the injected scripts can manipulate the user interface, access sensitive data, or perform actions on behalf of authenticated users. This represents a significant threat to web application security and user trust within the Drupal ecosystem.
Mitigation strategies for this vulnerability include immediate patching of the MySite module to versions 4.7.x-3.3 or 5.x-1.3 and later, which contain the necessary input sanitization fixes. Organizations should also implement comprehensive input validation mechanisms, employ proper output encoding for all user-supplied data, and consider implementing Content Security Policy headers to limit script execution capabilities. Additionally, administrators should conduct regular security audits of third-party modules, maintain updated security monitoring tools, and establish proper access controls to limit the potential impact of such vulnerabilities. The remediation aligns with ATT&CK technique T1566, which addresses the exploitation of vulnerabilities through the injection of malicious code, emphasizing the importance of input validation and proper sanitization in preventing such attacks.