CVE-2008-3397 in Cerberus CMS
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Runesoft Cerberus CMS before 3_1.4_0.9 allows remote attackers to inject arbitrary web script or HTML via a cerberus_user cookie.
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Analysis
by VulDB Data Team • 04/03/2025
The CVE-2008-3397 vulnerability represents a critical cross-site scripting flaw in Runesoft Cerberus CMS versions prior to 3_1.4_0.9, exposing systems to remote code execution through malicious web script injection. This vulnerability specifically targets the cerberus_user cookie mechanism, which serves as an authentication and session management component within the CMS architecture. The flaw arises from insufficient input validation and output encoding practices, allowing attackers to manipulate cookie values and inject malicious payloads that execute in the context of other users' browsers. The vulnerability operates at the application layer and demonstrates a classic XSS attack vector that bypasses traditional security controls.
The technical implementation of this vulnerability stems from the CMS's failure to properly sanitize user-supplied data within the cerberus_user cookie parameter. When the system processes this cookie value without adequate sanitization measures, it fails to escape special characters that could be interpreted as HTML or JavaScript code. This weakness aligns with CWE-79, which specifically addresses Cross-Site Scripting vulnerabilities in web applications, and represents a direct violation of secure coding practices for input validation and output encoding. The vulnerability's exploitation requires minimal privileges and can be executed through simple HTTP requests, making it particularly dangerous for widespread deployment.
Operational impact of this vulnerability extends beyond simple data theft or defacement, as it enables attackers to establish persistent footholds within affected systems. Once exploited, malicious scripts can steal session cookies, redirect users to phishing sites, or perform unauthorized actions on behalf of legitimate users. The vulnerability particularly affects web applications that rely on cookie-based authentication mechanisms, creating a significant risk for organizations using older versions of Cerberus CMS. Attackers can leverage this flaw to conduct session hijacking, data exfiltration, and privilege escalation attacks that compromise the integrity and confidentiality of web applications.
Mitigation strategies for CVE-2008-3397 require immediate implementation of both patch management and defensive coding practices. Organizations must upgrade to Cerberus CMS version 3_1.4_0.9 or later, which includes proper input validation and output encoding mechanisms for cookie handling. Additionally, implementing Content Security Policy headers, proper cookie security attributes such as HttpOnly and Secure flags, and regular security audits can significantly reduce the attack surface. The vulnerability demonstrates the importance of following ATT&CK framework techniques related to credential access and execution through web application vulnerabilities. Regular security testing, including automated scanning and manual penetration testing, should be conducted to identify similar weaknesses in other applications. Organizations should also implement web application firewalls and monitor for suspicious cookie manipulation attempts to detect potential exploitation attempts.