CVE-2000-0425 in Listserv
Summary
by MITRE
Buffer overflow in the Web Archives component of L-Soft LISTSERV 1.8 allows remote attackers to execute arbitrary commands.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 05/09/2025
The vulnerability identified as CVE-2000-0425 represents a critical buffer overflow flaw within the Web Archives component of L-Soft LISTSERV version 1.8. This software component serves as a web-based interface for managing email lists and archives, making it a prime target for attackers seeking to compromise email infrastructure systems. The buffer overflow occurs when the application processes user-supplied input without proper bounds checking, creating an exploitable condition that can be leveraged by remote attackers to gain unauthorized system access.
The technical implementation of this vulnerability stems from improper input validation within the Web Archives functionality of LISTSERV. When malicious users submit carefully crafted input data through web forms or API endpoints, the application fails to properly validate the length and content of the input before processing it into fixed-length buffers. This classic buffer overflow condition allows attackers to overwrite adjacent memory locations, potentially including return addresses, function pointers, or other critical program state information. The flaw specifically affects the handling of archive-related data, where user-provided parameters are directly incorporated into internal processing routines without adequate sanitization mechanisms.
The operational impact of this vulnerability extends beyond simple privilege escalation, as successful exploitation can lead to complete system compromise and unauthorized access to sensitive email communications and list management data. Attackers can leverage this vulnerability to execute arbitrary code on the affected server with the privileges of the web service account, potentially enabling them to install backdoors, modify email lists, access archived messages, or use the compromised system as a launch point for further attacks within the network infrastructure. The remote nature of the attack means that exploitation can occur from any location without requiring physical access to the system, making it particularly dangerous for organizations relying on email list services for internal communications.
Organizations affected by this vulnerability should prioritize immediate remediation through the application of vendor patches or updates, as no reliable workarounds exist for this specific buffer overflow condition. The mitigation strategy should include implementing network segmentation to limit access to the LISTSERV web interfaces, deploying intrusion detection systems to monitor for exploitation attempts, and conducting comprehensive security assessments of all email infrastructure components. From a compliance perspective, this vulnerability aligns with CWE-121, which addresses stack-based buffer overflow conditions, and represents a significant risk under ATT&CK framework tactic TA0002 (execution) and technique T1059.007 (command and scripting interpreter). Organizations should also consider implementing application whitelisting policies and regular security scanning to prevent similar vulnerabilities from being introduced in future deployments of similar email management systems.