CVE-2007-6002 in Grani
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Fenriru (1) Sleipnir 2.5.17 R2 and earlier and (2) Grani 3.0 and earlier allows remote attackers to inject arbitrary web script or HTML via the Search field in a search for additions to the Favorites section.
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Analysis
by VulDB Data Team • 08/17/2022
The vulnerability identified as CVE-2007-6002 represents a critical cross-site scripting flaw affecting two distinct web browsers developed by Fenriru. This security weakness exists in Sleipnir version 2.5.17 R2 and earlier, as well as in Grani version 3.0 and earlier, creating a significant risk for users of these browser applications. The vulnerability specifically targets the Favorites section functionality, where users can search for additions to their bookmark collections, making it particularly dangerous as it exploits a common and frequently used browser feature. The flaw allows remote attackers to inject malicious web scripts or HTML content through the Search field, potentially compromising user sessions and data integrity.
This vulnerability operates as a classic client-side injection attack, where malicious input is not properly sanitized or validated before being processed and displayed to users. The technical implementation involves the browser failing to adequately filter or escape user-supplied input in the search functionality of the Favorites section. When users perform searches for additions to their favorites, the application processes the input without sufficient sanitization measures, allowing attackers to embed malicious scripts that execute in the context of the user's browser session. The attack vector is particularly concerning as it requires no privileged access or complex exploitation techniques, making it accessible to attackers with minimal technical expertise. This type of vulnerability falls under CWE-79, which specifically addresses cross-site scripting flaws, and represents a direct violation of secure input validation principles.
The operational impact of this vulnerability extends beyond simple script execution, potentially enabling attackers to perform session hijacking, steal sensitive user information, manipulate browser functionality, and redirect users to malicious websites. Users who frequently utilize the Favorites section for web browsing and bookmark management become prime targets, as the attack can be executed through simple web form submissions. The vulnerability's persistence in multiple browser versions indicates a fundamental flaw in the application's input handling mechanisms that was not adequately addressed in the development lifecycle. This creates a sustained risk for users who have not updated to newer versions, as they remain exposed to potential exploitation attempts. The attack can be facilitated through various means including phishing campaigns, compromised websites, or direct injection attacks against vulnerable applications that utilize these browser components.
Mitigation strategies for this vulnerability should include immediate application of security patches to update to versions that address the XSS flaw, proper input validation and sanitization of all user-supplied data, and implementation of Content Security Policy headers to limit script execution. Organizations should conduct comprehensive security assessments of their browser environments to identify any other potential injection points and ensure that all user inputs are properly escaped before processing. The vulnerability demonstrates the critical importance of input validation and output encoding in preventing XSS attacks, aligning with ATT&CK technique T1059.005 for command and scripting interpreter. Additionally, user education regarding suspicious website behavior and regular security updates remains essential, as this vulnerability highlights the risks associated with outdated browser software and the need for continuous security maintenance.