CVE-2000-0642 in WEBactive
Summary
by MITRE
The default configuration of WebActive HTTP Server 1.00 stores the web access log active.log in the document root, which allows remote attackers to view the logs by directly requesting the page.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 10/13/2025
The vulnerability identified as CVE-2000-0642 represents a critical misconfiguration issue within the WebActive HTTP Server version 1.00 that exposes sensitive operational data to unauthorized parties. This flaw stems from the server's default installation settings where access logs are stored in the publicly accessible document root directory rather than in a secure, protected location. The configuration oversight creates an unintended information disclosure channel that directly violates fundamental security principles of least privilege and proper access control. According to the Common Weakness Enumeration catalog, this vulnerability maps to CWE-200, which describes the improper exposure of sensitive information, specifically highlighting how system-generated logs containing user access patterns, IP addresses, and potentially other identifying information become accessible to any remote attacker who knows the appropriate file path.
The technical implementation of this vulnerability exploits the server's default directory structure where the active.log file resides in the web root, making it directly requestable through standard HTTP GET operations. Attackers can simply append the filename to their web requests without requiring any authentication or elevated privileges, effectively bypassing normal access controls that should protect operational logging information. This misconfiguration allows adversaries to gain insights into server usage patterns, potentially identifying user behaviors, access times, and even sensitive information about the server's operational environment. The vulnerability demonstrates a classic case of insecure default configurations that persist across multiple systems and can be leveraged for reconnaissance purposes, information gathering, and subsequent attack planning.
The operational impact of this vulnerability extends beyond simple information disclosure, as the access logs typically contain valuable intelligence about server interactions that could aid in crafting more sophisticated attacks. These logs may reveal user agent strings, referrer information, request patterns, and other metadata that could be used for social engineering, targeted attacks, or to understand the server's operational footprint. The exposure of such information aligns with ATT&CK technique T1083, which covers directory and file discovery activities, as attackers can systematically enumerate and access these log files to build comprehensive profiles of the target environment. Organizations may experience reputational damage and regulatory compliance issues if sensitive user data inadvertently becomes exposed through these log files, particularly if the server hosts applications handling personal or confidential information.
Mitigation strategies for this vulnerability should focus on immediate configuration remediation, including moving log files to secure, non-web-accessible directories and implementing proper access controls to prevent unauthorized file access. System administrators should conduct comprehensive security audits of all server configurations to identify similar misconfigurations across the infrastructure. The principle of least privilege must be enforced by ensuring that logging directories have restricted permissions and that only authorized system processes can access these files. Additionally, organizations should implement proper log management practices, including log rotation, centralized logging, and regular security assessments to prevent similar issues from occurring in other components of their IT infrastructure. Regular security training for system administrators should emphasize the importance of secure default configurations and the potential consequences of leaving systems in their default state without proper security hardening measures.