CVE-2000-0022 in Domino Server
Summary
by MITRE
Lotus Domino HTTP server does not properly disable anonymous access for the cgi-bin directory.
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Analysis
by VulDB Data Team • 04/20/2026
The vulnerability identified as CVE-2000-0022 affects the Lotus Domino HTTP server implementation and represents a critical access control flaw that undermines the security posture of email and collaboration platforms. This issue specifically targets the configuration of the cgi-bin directory within the Domino server environment, where anonymous access should be restricted but is improperly left enabled. The Lotus Domino server, developed by IBM, serves as a comprehensive collaboration platform that includes email services, web servers, and application development capabilities. When the HTTP server component fails to properly disable anonymous access to the cgi-bin directory, it creates an unintended attack surface that can be exploited by malicious actors to gain unauthorized access to server resources and potentially execute arbitrary code. This vulnerability directly impacts the principle of least privilege and proper access controls that are fundamental to secure system design.
The technical flaw manifests in the server configuration where the cgi-bin directory, which typically contains executable scripts and programs, remains accessible to anonymous users without proper authentication mechanisms. This misconfiguration allows attackers to browse the directory contents, potentially discover sensitive scripts or executables, and exploit them to execute unauthorized commands on the server. The cgi-bin directory often contains critical system utilities and scripts that should only be accessible to authorized administrators or specific user groups. When anonymous access remains enabled, it creates a pathway for attackers to perform reconnaissance activities, identify potential attack vectors, and potentially escalate privileges through the exploitation of vulnerable scripts or applications hosted in this directory. This vulnerability is particularly concerning because it affects the core HTTP server functionality and can be exploited without requiring valid credentials or authentication tokens.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential system compromise and data breaches. Attackers can leverage this weakness to execute malicious code, modify server configurations, access sensitive data stored on the Domino server, or use the compromised system as a launch point for further attacks within the network infrastructure. The vulnerability can lead to complete system compromise when combined with other exploitation techniques, as it provides a foothold for attackers to escalate their privileges and gain deeper access to the underlying operating system. Organizations using Lotus Domino servers may experience unauthorized data access, modification of email content, disruption of services, and potential compliance violations if sensitive information is exposed through this vulnerability. The impact is particularly severe for enterprises relying on Domino for business-critical communications and collaboration services.
Mitigation strategies for CVE-2000-0022 require immediate configuration changes to properly restrict anonymous access to the cgi-bin directory and implement comprehensive access controls. System administrators should disable anonymous access to all sensitive directories including cgi-bin, ensure proper authentication mechanisms are enforced, and regularly audit server configurations to prevent similar misconfigurations. The recommended approach involves configuring the Domino server to explicitly deny anonymous access to the cgi-bin directory through proper access control lists and authentication settings. Organizations should also implement network segmentation, deploy intrusion detection systems, and establish regular security assessments to identify and remediate similar configuration vulnerabilities. This vulnerability aligns with CWE-284, which addresses improper access control, and maps to ATT&CK technique T1078 for valid accounts and T1566 for spearphishing campaigns that could exploit such misconfigurations. Regular patch management and adherence to security best practices for web server configurations are essential to prevent exploitation of this and similar vulnerabilities.