CVE-2005-0313 in Magic Winmail Server
Summary
by MITRE
Multiple directory traversal vulnerabilities in Magic Winmail Server 4.0 Build 1112 allow remote attackers to (1) upload arbitrary files via certain parameters to upload.php or (2) read arbitrary files via certain parameters to download.php, and remote authenticated users to read, create, or delete arbitrary directories and files via the IMAP commands (3) CREATE, (4) EXAMINE, (5) SELECT, or (6) DELETE.
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Analysis
by VulDB Data Team • 08/14/2025
The vulnerability identified as CVE-2005-0313 represents a critical directory traversal flaw within Magic Winmail Server version 4.0 Build 1112, exposing the system to both remote and authenticated attack vectors that can result in complete system compromise. This vulnerability stems from inadequate input validation and improper path handling within the server's file operations mechanisms, creating pathways for attackers to manipulate file system access through carefully crafted requests. The flaw specifically affects the server's handling of file upload and download operations, as well as its IMAP protocol implementation, making it particularly dangerous as it can be exploited by both unauthenticated remote attackers and authenticated users with legitimate access privileges.
The technical exploitation of this vulnerability occurs through multiple attack vectors that leverage the server's insufficient sanitization of user-supplied input. In the case of file uploads, attackers can manipulate parameters within the upload.php script to bypass intended file type restrictions and execute arbitrary code through malicious file uploads. The download.php script suffers from similar weaknesses, allowing attackers to specify arbitrary file paths and retrieve sensitive files from the server's file system. Additionally, the IMAP command implementations for CREATE, EXAMINE, SELECT, and DELETE operations are vulnerable to manipulation, enabling attackers to traverse directory structures and gain unauthorized access to system resources. These vulnerabilities are classified under CWE-22 as Path Traversal and CWE-23 as Relative Path Traversal, demonstrating the fundamental weakness in how the server processes file system paths.
The operational impact of CVE-2005-0313 extends far beyond simple data theft, as it provides attackers with complete control over the affected server's file system operations. Remote unauthenticated attackers can leverage the upload capability to deploy malware or backdoors, while authenticated users can exploit the directory traversal features to access confidential emails, system configuration files, and other sensitive data. The ability to create, delete, and manipulate directories and files through IMAP commands means that attackers can fundamentally alter the server's operation, potentially leading to service disruption, data corruption, or complete system compromise. This vulnerability directly maps to several ATT&CK techniques including T1078 for valid accounts, T1566 for phishing, and T1059 for command and scripting interpreter, as the exploitation can lead to persistent access and further lateral movement within networks.
Mitigation strategies for this vulnerability require immediate implementation of multiple defensive measures to protect against exploitation. Organizations should implement strict input validation and sanitization for all user-supplied parameters, particularly those used in file operations and IMAP command processing. The server should be configured with proper access controls and file permissions that limit the ability of users to traverse directories beyond their intended scope. Network segmentation and firewall rules should restrict access to the affected server, particularly limiting IMAP access to trusted networks. Regular security updates and patches should be applied immediately upon availability, as this vulnerability has been widely known and exploited since its disclosure. Additionally, implementing web application firewalls and intrusion detection systems can help detect and prevent exploitation attempts. The vulnerability highlights the importance of secure coding practices and proper input validation as outlined in OWASP Top Ten and NIST cybersecurity guidelines, emphasizing that such fundamental security flaws can be prevented through proper development practices and security testing.