CVE-2009-2928 in TGS
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in login.php in TGS Content Management 0.x allows remote attackers to inject arbitrary web script or HTML via the previous_page parameter, a different vector than CVE-2008-6839.
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Analysis
by VulDB Data Team • 12/08/2024
The vulnerability identified as CVE-2009-2928 represents a cross-site scripting flaw within the TGS Content Management system version 0.x, specifically affecting the login.php script. This security weakness enables remote attackers to execute malicious web scripts or HTML code through manipulation of the previous_page parameter, creating a persistent threat vector that can compromise user sessions and data integrity. The vulnerability operates by failing to properly sanitize user input before rendering it within the web application's response, allowing malicious payloads to be executed in the context of other users' browsers.
The technical implementation of this XSS vulnerability stems from insufficient input validation and output encoding practices within the login.php component. When the application processes the previous_page parameter without adequate sanitization, it creates an opening for attackers to inject malicious scripts that will execute whenever other users access the affected page. This particular vector differs from CVE-2008-6839, indicating that the vulnerability exists in a distinct code path or parameter handling mechanism, suggesting multiple attack surfaces within the same application framework. The flaw aligns with CWE-79 which categorizes cross-site scripting vulnerabilities as weaknesses in input validation and output encoding.
From an operational standpoint, this vulnerability presents significant risks to organizations utilizing TGS Content Management systems, as it can lead to session hijacking, credential theft, and unauthorized access to sensitive information. Attackers can leverage this weakness to redirect users to malicious sites, steal cookies, or inject malware that persists across user sessions. The remote nature of the attack means that threat actors do not require physical access or privileged network positions to exploit the vulnerability, making it particularly dangerous for web applications handling user authentication and sensitive content management functions.
Security professionals should implement comprehensive mitigation strategies focusing on input validation and output encoding practices. The primary remediation involves sanitizing all user-supplied input, particularly parameters like previous_page, through proper encoding and validation routines before rendering them within web responses. Organizations should also consider implementing Content Security Policy headers to limit script execution contexts and employ regular security testing including dynamic application security testing and manual penetration testing. This vulnerability demonstrates the importance of maintaining secure coding practices and following established security frameworks such as the OWASP Top Ten and NIST cybersecurity guidelines to prevent similar issues in web application development and maintenance processes.