CVE-2004-0578 in Wingate
Summary
by MITRE
wingate 5.2.3 build 901 and 6.0 beta 2 build 942 and other versions such as 5.0.5 allows remote attackers to read arbitrary files via leading slash (//) characters in a url request to the wingate-internal directory.
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Analysis
by VulDB Data Team • 07/12/2025
The vulnerability identified as CVE-2004-0578 represents a critical directory traversal flaw in Wingate proxy software versions 5.2.3 build 901, 6.0 beta 2 build 942, and other variants including 5.0.5. This security weakness stems from inadequate input validation within the web server component of Wingate's internal directory handling mechanism. The flaw specifically manifests when processing Uniform Resource Locator requests that contain leading slash characters in the URL path, allowing malicious actors to bypass normal access controls and retrieve files from arbitrary locations on the server filesystem. The vulnerability directly maps to CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as directory traversal or path traversal attacks. Such flaws typically occur when applications fail to properly sanitize user-supplied input before using it in file system operations.
The operational impact of this vulnerability extends beyond simple information disclosure, as it enables remote attackers to access sensitive system files, configuration data, and potentially confidential information stored on the proxy server. Attackers can exploit this weakness by crafting malicious URL requests that leverage the leading slash characters to navigate through the file system hierarchy and access files outside of the intended web root directory. This capability can lead to unauthorized access to system configuration files, user credentials, application source code, and other sensitive data that may be stored on the same server. The vulnerability is particularly dangerous because it operates at the application layer and can be exploited without requiring authentication or specialized tools beyond basic web browsing capabilities.
Security professionals should recognize this vulnerability as part of the broader ATT&CK framework's technique T1566, which encompasses the use of malicious web content to gain access to systems. The flaw enables an attacker to perform reconnaissance and information gathering activities that could lead to further compromise of the affected system. Organizations running Wingate software should implement immediate mitigations including input validation and sanitization of all URL parameters, implementation of proper access controls for internal directories, and deployment of web application firewalls to filter malicious requests. Additionally, the vulnerability highlights the importance of regular security updates and patch management, as this issue was addressed in subsequent versions of the software. The flaw demonstrates the critical need for proper input validation and the principle of least privilege when designing web applications and proxy services that handle user-supplied data.