CVE-2012-4585 in Email
Summary
by MITRE
McAfee Email and Web Security (EWS) 5.x before 5.5 Patch 6 and 5.6 before Patch 3, and McAfee Email Gateway (MEG) 7.0 before Patch 1, allows remote authenticated users to read arbitrary files via a crafted URL.
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Analysis
by VulDB Data Team • 04/25/2018
The vulnerability identified as CVE-2012-4585 represents a critical path traversal flaw affecting McAfee Email and Web Security (EWS) and McAfee Email Gateway (MEG) products. This issue stems from insufficient input validation within the web interface of these security appliances, allowing authenticated attackers to manipulate URL parameters and access sensitive files outside the intended directory structure. The vulnerability specifically impacts versions prior to the mentioned patch releases, creating a persistent security risk for organizations relying on these email security solutions. The flaw enables attackers to bypass normal access controls and retrieve files that should remain restricted, potentially exposing system configuration data, user information, and other sensitive materials stored on the affected appliances.
The technical implementation of this vulnerability exploits weaknesses in the web application's file handling mechanisms, where user-supplied URL parameters are not properly sanitized or validated before being processed. Attackers can construct malicious URLs containing directory traversal sequences such as "../" or similar constructs to navigate beyond the intended file access boundaries. This type of vulnerability maps directly to CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The flaw operates at the application layer, where the security appliance fails to properly validate and sanitize input parameters before using them to construct file paths. The authenticated nature of the attack means that an attacker must first establish valid credentials, typically through legitimate administrative access, but once achieved, can leverage this vulnerability to escalate their privileges and access unauthorized data.
The operational impact of CVE-2012-4585 extends beyond simple data theft, as it can compromise the integrity and confidentiality of email security infrastructure. Organizations may experience unauthorized access to email content, system logs, configuration files containing administrative credentials, and potentially sensitive organizational data that flows through these security appliances. The vulnerability could enable attackers to gather intelligence about network infrastructure, identify other potential attack vectors, and potentially compromise the security appliance itself, leading to complete system takeover. This risk is particularly concerning for email gateway solutions where the appliance serves as a central point for email traffic inspection and filtering, making it a valuable target for adversaries seeking to establish persistent access to organizational communication channels.
Mitigation strategies for this vulnerability require immediate patch application to the affected McAfee products, specifically targeting the mentioned patch versions that address the path traversal flaw. Organizations should implement network segmentation and access controls to limit administrative access to these appliances, ensuring that only authorized personnel can establish connections. Regular security assessments and input validation reviews should be conducted to identify similar vulnerabilities in other applications and systems. The ATT&CK framework categorizes this type of vulnerability under T1059 Command and Scripting Interpreter and T1566 Impairing Defenses, as it enables attackers to gain access to system resources and potentially compromise the security posture of the entire email infrastructure. System administrators should also implement monitoring and logging of unusual file access patterns and URL parameters to detect potential exploitation attempts, while maintaining regular backups to ensure rapid recovery in case of successful compromise.