CVE-2004-0798 in Whatsup Gold
Summary
by MITRE
Buffer overflow in the _maincfgret.cgi script for Ipswitch WhatsUp Gold before 8.03 Hotfix 1 allows remote attackers to execute arbitrary code via a long instancename parameter.
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Analysis
by VulDB Data Team • 04/23/2025
The vulnerability described in CVE-2004-0798 represents a critical buffer overflow flaw within the Ipswitch WhatsUp Gold network monitoring software, specifically affecting versions prior to 8.03 Hotfix 1. This issue resides in the _maincfgret.cgi script which serves as a configuration retrieval component for the WhatsUp Gold application. The buffer overflow occurs when the application processes a specially crafted instancename parameter that exceeds the allocated buffer space, creating a condition where attackers can overwrite adjacent memory locations and potentially execute arbitrary code on the affected system.
The technical exploitation of this vulnerability leverages the classic buffer overflow attack pattern where insufficient input validation allows an attacker to provide a maliciously long string parameter. When the _maincfgret.cgi script processes the instancename parameter without proper bounds checking, it copies the input directly into a fixed-size buffer without verifying that the input length exceeds the buffer capacity. This flaw directly maps to CWE-121, which describes stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow scenarios. The vulnerability is particularly dangerous because it allows remote code execution without requiring authentication, making it a high-severity threat in network monitoring environments.
The operational impact of this vulnerability extends beyond simple code execution, as WhatsUp Gold serves as a critical network monitoring tool for enterprise environments. When exploited, the buffer overflow could allow attackers to gain full administrative control over the monitoring server, potentially leading to complete network compromise. The attack vector is particularly concerning since it operates over the network without requiring user interaction, aligning with ATT&CK technique T1203 for Exploitation for Client Execution and T1059 for Command and Scripting Interpreter. Organizations using Ipswitch WhatsUp Gold in production environments would face significant risk of unauthorized access, data exfiltration, and potential lateral movement within their networks.
Mitigation strategies for this vulnerability require immediate patch deployment to upgrade to Ipswitch WhatsUp Gold version 8.03 Hotfix 1 or later, which contains the necessary code fixes to prevent the buffer overflow condition. Network administrators should also implement additional security controls such as input validation at the network level, firewall rules to restrict access to the affected CGI scripts, and monitoring for suspicious parameter lengths in web application logs. The vulnerability demonstrates the importance of proper input validation and bounds checking in web applications, reinforcing principles from the OWASP Top Ten project that emphasize secure coding practices and the need for defensive programming techniques to prevent memory corruption vulnerabilities. Organizations should also conduct thorough vulnerability assessments to identify other potentially affected applications and systems that might share similar buffer overflow patterns, as this type of flaw remains a persistent threat in legacy network monitoring solutions.