CVE-2008-5889 in Click
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in user.asp in Click&Rank allows remote attackers to inject arbitrary web script or HTML via the action parameter.
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Analysis
by VulDB Data Team • 11/18/2024
The CVE-2008-5889 vulnerability represents a classic cross-site scripting flaw within the Click&Rank web application's user.asp component. This security weakness specifically targets the action parameter, which serves as an entry point for malicious input manipulation. The vulnerability resides in the application's failure to properly validate or sanitize user-supplied data before incorporating it into dynamically generated web pages. Attackers can exploit this weakness by crafting malicious payloads that leverage the action parameter to inject arbitrary HTML or JavaScript code into the web application's response. The implications extend beyond simple data corruption, as this vulnerability enables attackers to execute malicious scripts in the context of other users' browsers, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of victims.
The technical exploitation of this XSS vulnerability follows established patterns that align with CWE-79, which categorizes cross-site scripting as a critical web application security flaw. The vulnerability operates at the input validation layer where the application fails to implement proper sanitization mechanisms for the action parameter. This weakness creates a persistent threat vector that can be leveraged through various attack vectors including phishing campaigns, social engineering, or direct injection attempts. The flaw exists because the application does not employ adequate output encoding or input filtering techniques to prevent malicious code execution within the browser context. Security researchers have documented similar patterns in web applications where dynamic content generation occurs without proper context-aware sanitization, making these applications particularly vulnerable to client-side attacks.
The operational impact of CVE-2008-5889 extends significantly beyond the immediate technical compromise. When exploited, this vulnerability can lead to full session hijacking, where attackers gain unauthorized access to user accounts and can perform actions as authenticated users. The attack surface is particularly concerning for web applications that handle sensitive user data or provide administrative functions, as the injected scripts can potentially exfiltrate cookies, capture keystrokes, or redirect users to malicious sites. Additionally, the vulnerability can be weaponized to deliver malware payloads through drive-by downloads or to establish persistent backdoors within the victim's browser environment. The long-term consequences include potential data breaches, reputational damage, and regulatory compliance violations that organizations may face when such vulnerabilities are exploited in real-world scenarios.
Mitigation strategies for CVE-2008-5889 must address both immediate remediation and long-term architectural improvements to prevent similar vulnerabilities. The primary defense involves implementing proper input validation and output encoding mechanisms that sanitize all user-supplied data before processing or rendering. Organizations should deploy context-aware encoding solutions that escape special characters in HTML, JavaScript, and URL contexts to prevent code injection. The implementation of Content Security Policy headers can provide additional defense-in-depth measures by restricting script execution and limiting the sources from which content can be loaded. Security teams should also establish comprehensive testing procedures including automated scanning tools and manual penetration testing to identify similar vulnerabilities in web applications. According to ATT&CK framework, this vulnerability maps to T1059.007 for script injection techniques and T1566 for social engineering attacks that leverage XSS flaws, emphasizing the need for both technical controls and user education to prevent exploitation. Regular security updates, proper code review processes, and adherence to secure coding practices form the foundation of a robust defense strategy against such client-side vulnerabilities.