CVE-2008-1400 in Net Inspector
Summary
by MITRE
Directory traversal vulnerability in the Net Inspector HTTP Server (mghttpd) in MG-SOFT Net Inspector 6.5.0.828 and earlier for Windows allows remote attackers to read arbitrary files via a "..\" (dot dot backslash) or "../" (dot dot slash) in the URI.
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Analysis
by VulDB Data Team • 10/19/2024
The CVE-2008-1400 vulnerability represents a critical directory traversal flaw in the MG-SOFT Net Inspector 6.5.0.828 and earlier versions, specifically within its Net Inspector HTTP Server component known as mghttpd. This vulnerability falls under the CWE-22 category, which classifies directory traversal attacks as a fundamental security weakness where attackers can access files outside the intended directory structure. The flaw exists in the HTTP server implementation that fails to properly validate and sanitize URI parameters, allowing malicious users to manipulate file paths through specially crafted requests.
The technical exploitation of this vulnerability occurs when an attacker crafts a URI containing directory traversal sequences such as "..\" or "../" which are designed to navigate up the directory hierarchy. When the mghttpd server processes these requests without proper input validation, it interprets these sequences and allows access to files that should normally be restricted. This occurs because the server does not adequately sanitize user-supplied input before using it in file system operations, creating a path traversal condition that enables arbitrary file reading capabilities. The vulnerability is particularly dangerous because it allows remote attackers to access sensitive system files, configuration data, and potentially confidential information stored on the server.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can lead to complete system compromise when combined with other attack vectors. An attacker could potentially access system configuration files, user credentials, application data, or even system binaries that could be used for further exploitation. The remote nature of the attack means that no local system access is required, making it particularly attractive to threat actors who can exploit the vulnerability from anywhere on the network. This vulnerability directly aligns with ATT&CK technique T1083 (File and Directory Discovery) and T1566 (Phishing for Information) as it enables adversaries to discover and extract sensitive files from compromised systems.
Mitigation strategies for this vulnerability should include immediate patching of the MG-SOFT Net Inspector software to version 6.5.0.829 or later, which contains the necessary fixes to properly validate and sanitize URI inputs. Organizations should also implement network segmentation to limit access to systems running the vulnerable software, deploy web application firewalls that can detect and block directory traversal attempts, and conduct regular security assessments to identify similar vulnerabilities in other components. Additionally, implementing proper input validation at the application level, using secure coding practices that enforce strict path validation, and maintaining up-to-date security monitoring systems can help prevent exploitation of similar directory traversal vulnerabilities. The vulnerability demonstrates the critical importance of input validation in web applications and highlights the need for comprehensive security testing throughout the software development lifecycle to prevent such fundamental flaws from reaching production environments.