CVE-2007-4900 in EnVision
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the logon page in RSA EnVision 3.3.6 Build 0115 allows remote attackers to inject arbitrary web script or HTML via the username field.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 09/08/2018
The CVE-2007-4900 vulnerability represents a critical cross-site scripting flaw in RSA EnVision 3.3.6 Build 0115, specifically targeting the authentication logon page. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, where improper input validation allows malicious actors to inject executable scripts into web applications. The flaw manifests when the system fails to adequately sanitize user input in the username field, creating an avenue for attackers to execute malicious code within the context of authenticated sessions. The vulnerability is particularly dangerous because it affects the logon page, which serves as the primary entry point for user authentication, making it a prime target for exploitation.
The technical implementation of this vulnerability exploits the lack of proper input sanitization mechanisms within the RSA EnVision application's authentication framework. When users enter data into the username field, the application does not properly encode or validate the input before processing or displaying it. This allows attackers to submit malicious payloads containing javascript code or html tags that get executed in the victim's browser when the page renders. The attack vector is particularly effective because the logon page is designed to display user-provided information, creating a direct path for script injection to take effect in the context of legitimate user sessions.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable sophisticated attack chains that compromise user sessions and potentially escalate to full system compromise. Attackers can leverage this vulnerability to steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users. The vulnerability's severity is amplified by its location within the authentication system, as successful exploitation could lead to unauthorized access to sensitive monitoring and security data managed by RSA EnVision. This represents a significant risk to organizations relying on the platform for security operations and incident response.
Organizations should implement immediate mitigations including input validation and output encoding mechanisms to prevent script injection in all user-facing fields. The recommended approach involves implementing proper HTML entity encoding for all user-supplied input before rendering in the browser context. Additionally, organizations should consider implementing Content Security Policy headers to limit script execution capabilities and deploy web application firewalls to detect and block malicious payloads. The vulnerability aligns with ATT&CK technique T1566 for initial access through malicious input and T1071 for application layer protocol usage, making it a critical target for defensive measures. Regular security assessments and input validation reviews should be conducted to prevent similar vulnerabilities in future releases, particularly focusing on authentication components where user input is processed and displayed.