CVE-2001-0329 in Bugzilla
Summary
by MITRE
Bugzilla 2.10 allows remote attackers to execute arbitrary commands via shell metacharacters in a username that is then processed by (1) the Bugzilla_login cookie in post_bug.cgi, or (2) the who parameter in process_bug.cgi.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 10/07/2025
The vulnerability described in CVE-2001-0329 represents a critical command injection flaw within Bugzilla version 2.10 that exposes the application to remote code execution attacks. This security weakness arises from inadequate input validation and sanitization mechanisms within the web application's authentication and bug processing workflows. The vulnerability specifically targets two distinct entry points within the Bugzilla codebase where user-supplied data is processed without proper sanitization, creating opportunities for malicious actors to inject shell metacharacters that can be executed by the underlying operating system.
The technical exploitation occurs through two primary vectors that demonstrate poor input handling practices and inadequate security controls. The first attack vector involves the Bugzilla_login cookie parameter within the post_bug.cgi script where username data is directly incorporated into shell commands without proper escaping or sanitization. The second vector targets the who parameter in process_bug.cgi where similar vulnerabilities exist. Both scenarios fall under the CWE-77 category of Command Injection, which is classified as a critical weakness in software security. This vulnerability type allows attackers to execute arbitrary system commands with the privileges of the web server process, potentially leading to complete system compromise.
The operational impact of this vulnerability extends far beyond simple data theft or service disruption. When exploited successfully, attackers can gain full control over the Bugzilla server, potentially accessing sensitive bug reports, user credentials, and underlying system resources. The vulnerability affects the integrity and confidentiality of the entire bug tracking system, as attackers can execute commands such as file system operations, network reconnaissance, or even establish persistent backdoors. The remote nature of the attack means that no local access is required, making it particularly dangerous for organizations that host public or semi-public bug tracking systems. This vulnerability directly aligns with ATT&CK technique T1059.001 for Command and Scripting Interpreter, specifically targeting the execution of system commands through web application interfaces.
Organizations utilizing Bugzilla version 2.10 or similar vulnerable versions should immediately implement multiple layers of mitigation strategies to protect against this vulnerability. The primary recommendation involves implementing strict input validation and sanitization mechanisms that properly escape or filter shell metacharacters from all user-supplied data. This includes modifying the post_bug.cgi and process_bug.cgi scripts to sanitize all cookie and parameter inputs before processing. Additionally, the web server should be configured with proper privilege separation, ensuring that the Bugzilla application runs with minimal necessary permissions. System administrators should also consider implementing web application firewalls and intrusion detection systems to monitor for suspicious command execution patterns. The vulnerability highlights the importance of following secure coding practices and demonstrates the critical need for regular security updates and patches to prevent exploitation of known vulnerabilities. Organizations should also conduct thorough security assessments to identify similar command injection vulnerabilities in other web applications and implement comprehensive input validation across all user-facing interfaces.