CVE-2005-3328 in PunBB
Summary
by MITRE
PHP remote file inclusion vulnerability in common.php in PunBB 1.1.2 through 1.1.5 allows remote attackers to execute arbitrary code via the pun_root parameter.
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Analysis
by VulDB Data Team • 07/12/2018
The vulnerability identified as CVE-2005-3328 represents a critical remote file inclusion flaw within the PunBB bulletin board software version 1.1.2 through 1.1.5. This vulnerability exists in the common.php file and specifically targets the pun_root parameter, creating a pathway for remote attackers to execute arbitrary code on affected systems. The flaw stems from inadequate input validation and sanitization mechanisms that fail to properly restrict user-supplied parameters from being directly incorporated into file inclusion operations.
This vulnerability operates under the CWE-98 weakness category, which specifically addresses Improper Direct Object Reference during File Operations. The technical implementation allows attackers to manipulate the pun_root parameter to include malicious files from remote servers, effectively bypassing local file system restrictions. The vulnerability is classified as a remote code execution issue under the ATT&CK framework's T1190 technique for Exploit Public-Facing Application, where attackers leverage web application flaws to gain unauthorized code execution capabilities.
The operational impact of this vulnerability extends beyond simple code execution, as it enables attackers to establish persistent access to affected systems. Successful exploitation allows adversaries to upload backdoors, execute system commands, and potentially escalate privileges to gain full control over the compromised server. The vulnerability affects not only individual user accounts but can compromise entire web infrastructure, particularly when PunBB installations are hosted on shared servers or within larger network environments where additional attack vectors may be available.
Mitigation strategies for CVE-2005-3328 require immediate patching of affected PunBB installations to version 1.1.6 or later, which contains the necessary input validation fixes. Organizations should implement strict input sanitization measures, including parameter validation and whitelisting of acceptable values for the pun_root parameter. Network-level protections such as web application firewalls and intrusion detection systems can provide additional layers of defense by monitoring for suspicious file inclusion patterns. System administrators should also conduct thorough security audits of all web applications to identify similar vulnerabilities and ensure proper configuration of file inclusion mechanisms. The vulnerability serves as a critical reminder of the importance of secure coding practices and proper input validation in preventing remote code execution attacks that can compromise entire web infrastructures.