CVE-2002-2200 in Dobermann Forum
Summary
by MITRE
Benjamin Lefevre Dobermann FORUM 0.5 and earlier allows remote attackers to remotely include and execute malicious PHP files via the "subpath" variablein (1) entete.php, (2) enteteacceuil.php, (3) index.php, or (4) newtopic.php.
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Analysis
by VulDB Data Team • 08/29/2025
The vulnerability described in CVE-2002-2200 represents a critical remote code execution flaw affecting Benjamin Lefevre Dobermann FORUM versions 0.5 and earlier. This issue stems from improper input validation mechanisms within the forum's core files, specifically targeting four key scripts that handle user-submitted data through the "subpath" parameter. The vulnerability classifies under CWE-94, which encompasses "Improper Control of Generation of Code ('Code Injection')" and aligns with ATT&CK technique T1190, "Exploit Public-Facing Application," highlighting the remote exploitation capabilities of this flaw.
The technical implementation of this vulnerability occurs through a classic path traversal and code injection vector where the "subpath" variable is directly incorporated into file inclusion operations without adequate sanitization or validation. When attackers manipulate this parameter, they can inject malicious PHP code that gets executed within the web server context, effectively allowing remote code execution on the affected system. The affected files entete.php, enteteacceuil.php, index.php, and newtopic.php all present identical vulnerabilities since they all process the subpath parameter in the same insecure manner, creating multiple attack vectors for exploitation.
The operational impact of this vulnerability extends far beyond simple data theft or service disruption. Successful exploitation provides attackers with complete administrative control over the vulnerable forum installation, enabling them to execute arbitrary commands, upload additional malware, establish persistent backdoors, or use the compromised system as a launching point for further attacks within the network infrastructure. This vulnerability directly violates the principle of least privilege and creates a persistent threat vector that can be leveraged for reconnaissance, data exfiltration, and lateral movement. The attack surface is particularly concerning given that forum systems often contain sensitive user data, personal information, and may serve as entry points to larger organizational networks.
Mitigation strategies for CVE-2002-2200 must address both immediate remediation and long-term security posture improvements. Organizations should immediately upgrade to a patched version of Dobermann FORUM or migrate to more modern forum platforms that implement proper input validation and secure coding practices. The recommended defensive measures include implementing strict input validation for all user-supplied parameters, employing a whitelist approach for file inclusion operations, and utilizing secure coding practices such as those outlined in the OWASP Secure Coding Practices. Additionally, network segmentation, web application firewalls, and regular security assessments should be implemented to reduce the attack surface and detect potential exploitation attempts. This vulnerability serves as a prime example of why secure coding practices and regular security updates are essential for maintaining robust cybersecurity defenses in web applications.