CVE-2012-0302 in Message Filter
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Brightmail Control Center in Symantec Message Filter 6.3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 12/05/2021
The CVE-2012-0302 vulnerability represents a critical cross-site scripting flaw discovered in Symantec Message Filter 6.3's Brightmail Control Center component. This vulnerability falls under the broader category of web application security weaknesses that can compromise user sessions and potentially lead to full system compromise. The vulnerability specifically affects the Brightmail Control Center interface which serves as the administrative portal for managing email filtering policies and configurations within Symantec's messaging security solution. The flaw exists within the handling of user input parameters that are not properly sanitized or validated before being rendered back to users in web responses.
The technical implementation of this XSS vulnerability stems from insufficient input validation mechanisms within the Brightmail Control Center's web interface. Attackers can exploit this weakness by crafting malicious payloads that contain executable script code which gets injected into the application's response. These payloads can be delivered through various attack vectors including but not limited to email headers, message content fields, or administrative configuration parameters. The vulnerability's unspecified nature suggests that multiple input points within the control center interface may be susceptible to injection attacks, making the attack surface broader than initially apparent. This weakness directly maps to CWE-79 which defines Cross-site Scripting as a vulnerability where untrusted data is sent to a web browser without proper validation or sanitization.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking. An attacker who successfully exploits this vulnerability could potentially execute arbitrary code within the context of a victim's browser session, allowing for full access to the Brightmail Control Center interface. This access could enable attackers to modify email filtering policies, create unauthorized user accounts, or even redirect users to malicious websites. The implications are particularly severe in enterprise environments where the Brightmail Control Center is used for critical email security management functions. The vulnerability could also facilitate more sophisticated attacks such as credential harvesting, data exfiltration, or the deployment of additional malicious payloads through the compromised interface. Organizations relying on Symantec Message Filter for email security could face significant operational disruption and potential regulatory compliance issues if this vulnerability is exploited.
Mitigation strategies for CVE-2012-0302 should prioritize immediate patch application from Symantec, as this vulnerability was addressed through official security updates. Organizations should implement comprehensive input validation and output encoding mechanisms across all web interfaces, particularly focusing on the Brightmail Control Center components. Network segmentation and access controls should be strengthened to limit exposure of the administrative interface to trusted networks only. Regular security assessments and penetration testing should be conducted to identify additional vectors that may be susceptible to similar attacks. The vulnerability also highlights the importance of following secure coding practices such as those recommended in the OWASP Top Ten and the ATT&CK framework for web application security. Organizations should consider implementing web application firewalls to provide additional layers of protection against XSS attacks, and establish robust monitoring procedures to detect anomalous behavior in the Brightmail Control Center interface. Regular security training for administrators and developers is essential to prevent similar vulnerabilities from being introduced in future implementations and to ensure proper security awareness when handling user input data.