CVE-2006-5112 in NaviCOPA Web Server
Summary
by MITRE
Buffer overflow in InterVations NaviCOPA Web Server 2.01 allows remote attackers to execute arbitrary code via a long HTTP GET request.
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Analysis
by VulDB Data Team • 04/23/2026
The vulnerability identified as CVE-2006-5112 represents a critical buffer overflow flaw within the InterVations NaviCOPA Web Server version 2.01, classified under CWE-121 as a stack-based buffer overflow condition. This weakness occurs when the web server fails to properly validate the length of incoming HTTP GET requests, allowing an attacker to craft malicious requests that exceed the allocated buffer space. The flaw specifically affects the server's handling of URL parameters and query strings, where insufficient bounds checking enables memory corruption that can be exploited to overwrite adjacent memory locations including return addresses and control data.
The technical exploitation of this vulnerability leverages the fundamental principle of buffer overflow attacks where an attacker crafts a specially formatted HTTP GET request containing an excessive number of characters in the URL or query parameters. When the web server processes this malformed request, the insufficient input validation causes the program to write beyond the allocated memory buffer, potentially overwriting the instruction pointer or other critical control structures. This memory corruption can be manipulated to redirect program execution flow to malicious code injected by the attacker, effectively enabling remote code execution on the vulnerable server system.
The operational impact of CVE-2006-5112 extends beyond simple remote code execution, as it provides attackers with full administrative control over affected web servers. This vulnerability can be exploited without authentication, making it particularly dangerous for publicly accessible web services. Attackers can leverage this flaw to install backdoors, steal sensitive data, modify web content, or use the compromised server as a platform for further attacks against other systems within the network infrastructure. The vulnerability affects organizations running legacy web server software and highlights the importance of maintaining up-to-date security patches for web applications.
Mitigation strategies for this vulnerability should prioritize immediate patching of the affected NaviCOPA Web Server version 2.01 to the latest available secure release from InterVations. Organizations should implement network-level protections such as intrusion detection systems that can identify and block suspicious HTTP GET requests with unusually long parameters. Additionally, configuring web application firewalls to enforce request length limitations and implementing proper input validation controls can provide additional defense-in-depth measures. The vulnerability aligns with ATT&CK technique T1190 for exploiting vulnerabilities in web applications and demonstrates the persistent threat posed by unpatched legacy software in enterprise environments. Regular security assessments and vulnerability scanning should be conducted to identify similar flaws in other web server implementations and ensure comprehensive protection against buffer overflow exploits.