CVE-2002-0488 in Traceroute Script
Summary
by MITRE
Linux Directory Penguin traceroute.pl CGI script 1.0 allows remote attackers to execute arbitrary code via shell metacharacters in the host parameter.
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Analysis
by VulDB Data Team • 09/16/2025
The vulnerability identified as CVE-2002-0488 represents a critical remote code execution flaw in the Linux Directory Penguin traceroute.pl CGI script version 1.0. This issue resides within the web server's handling of user input through the host parameter, creating a pathway for malicious actors to inject and execute arbitrary commands on the affected system. The vulnerability specifically affects systems running the Directory Penguin web application suite, which includes various CGI scripts designed to provide network diagnostic functionality through web interfaces. The traceroute.pl script serves as a web-based interface for executing traceroute commands, making it a potential vector for attackers to escalate privileges and compromise the underlying server infrastructure.
The technical root cause of this vulnerability stems from improper input validation and sanitization within the CGI script implementation. When users provide the host parameter to the traceroute.pl script, the application fails to properly escape or filter special shell metacharacters such as semicolons, ampersands, backticks, and other command injection indicators. This lack of input sanitization allows attackers to append malicious commands that get executed within the context of the web server process. The vulnerability directly maps to CWE-77, which describes improper neutralization of special elements used in a command inside a code segment that is not a command interpreter, and also aligns with CWE-94, which covers the execution of arbitrary code or commands. The flaw enables attackers to leverage the web server's privileges to execute system commands, potentially leading to complete system compromise.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with the capability to perform various malicious activities including data exfiltration, privilege escalation, and persistent system access. An attacker could exploit this vulnerability to gain unauthorized access to sensitive system information, modify or delete files, install backdoors, or use the compromised system as a launch point for further attacks within the network. The vulnerability affects systems where the Directory Penguin web application is installed and accessible via the internet, making it particularly dangerous for publicly exposed web servers. This flaw also aligns with several ATT&CK techniques including T1059.001 for command and script interpreter, T1078 for valid accounts, and T1566 for phishing with malicious attachments or links, as attackers could potentially use this vulnerability to establish persistent access and move laterally within compromised networks.
Mitigation strategies for CVE-2002-0488 should focus on immediate patching of the affected Directory Penguin software, as well as implementing proper input validation and sanitization measures. Organizations should ensure that all CGI scripts properly escape or filter user-supplied input before processing, particularly when executing system commands. The recommended approach includes implementing strict parameter validation, using whitelisting techniques for acceptable input values, and employing secure coding practices that prevent command injection vulnerabilities. Additionally, system administrators should consider implementing web application firewalls and input filtering mechanisms to detect and block malicious payloads. Network segmentation and access controls should be enforced to limit exposure of vulnerable web applications, while regular security audits and vulnerability assessments should be conducted to identify similar issues in other software components. The vulnerability also highlights the importance of keeping all web applications updated and following secure coding standards as outlined in OWASP Top Ten and similar security frameworks to prevent similar injection vulnerabilities in the future.