CVE-2012-5344 in IpTools
Summary
by MITRE
Directory traversal vulnerability in the WebServer (Thttpd.bat) in IpTools (aka Tiny TCP/IP server) 0.1.4 allows remote attackers to read arbitrary files via a .. (dot dot) in a HTTP request.
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Analysis
by VulDB Data Team • 08/31/2025
The vulnerability identified as CVE-2012-5344 represents a critical directory traversal flaw within the WebServer component of IpTools version 0.1.4, commonly known as Tiny TCP/IP server. This security weakness manifests in the Thttpd.bat web server module that handles HTTP requests, creating an exploitable condition that allows malicious actors to access files outside the intended web root directory. The vulnerability stems from inadequate input validation and path sanitization within the HTTP request processing logic, enabling attackers to manipulate file access through specially crafted requests containing directory traversal sequences.
The technical implementation of this vulnerability occurs when the web server fails to properly sanitize user-supplied input from HTTP requests, particularly those containing .. (dot dot) sequences that are commonly used to navigate up directory levels in file systems. When an attacker submits a request with path traversal characters, the server processes these sequences without proper validation, allowing access to arbitrary files on the underlying file system. This flaw directly maps to CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The vulnerability exploits the fundamental principle that web servers should restrict access to files outside their designated document root directories.
From an operational impact perspective, this vulnerability presents severe consequences for systems running the affected IpTools version, as remote attackers can potentially access sensitive files including configuration data, user credentials, system logs, and other confidential information stored on the server. The attack surface extends beyond simple file reading to potentially include system compromise through access to critical configuration files or sensitive data repositories. Organizations using this software are at risk of data breaches, privilege escalation, and potential complete system compromise depending on the file permissions and system architecture. The vulnerability can be exploited without authentication, making it particularly dangerous as it allows unauthorized access to server resources.
Security professionals should implement multiple layers of mitigation strategies to address this vulnerability effectively. Immediate remediation involves upgrading to a patched version of IpTools or implementing proper input validation and sanitization within the web server configuration. Network segmentation and firewall rules can help limit exposure by restricting access to the affected server to trusted networks only. Additionally, implementing web application firewalls and content filtering systems can help detect and block malicious directory traversal attempts. The ATT&CK framework categorizes this vulnerability under T1083 - File and Directory Discovery, as attackers may use such techniques to map the file system structure. Organizations should also conduct regular security assessments and penetration testing to identify similar path traversal vulnerabilities in other web applications and services, ensuring comprehensive protection against this class of attack.