CVE-2006-3928 in WMNews
Summary
by MITRE
PHP remote file inclusion vulnerability in index.php in WMNews 0.2a and earlier allows remote attackers to execute arbitrary PHP code via a URL in the base_datapath paramter.
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Analysis
by VulDB Data Team • 07/09/2024
The vulnerability identified as CVE-2006-3928 represents a critical remote file inclusion flaw in the WMNews 0.2a content management system that exposes systems to arbitrary code execution. This vulnerability specifically affects the index.php script where the base_datapath parameter is processed without proper validation, creating an exploitable condition that allows attackers to inject malicious URLs. The flaw exists in the application's input handling mechanism where user-supplied parameters are directly incorporated into file inclusion operations, bypassing normal security controls. This type of vulnerability falls under the category of CWE-88, which describes improper neutralization of special elements used in an expression, specifically in the context of remote file inclusion attacks. The vulnerability is particularly dangerous because it enables attackers to execute arbitrary PHP code on the target server, potentially leading to complete system compromise.
The technical implementation of this vulnerability occurs when an attacker crafts a malicious URL and passes it as the base_datapath parameter to the vulnerable index.php script. The application fails to validate or sanitize this input before using it in a file inclusion context, typically through functions like include() or require(). This allows the attacker to reference external resources, potentially hosted on attacker-controlled servers, which then get executed as PHP code on the target system. The flaw demonstrates poor input validation practices and violates fundamental security principles of sanitizing user inputs before processing them in sensitive contexts. According to ATT&CK framework, this vulnerability maps to T1190 - Exploit Public-Facing Application, where attackers leverage web application vulnerabilities to gain unauthorized access and execute malicious code remotely.
The operational impact of CVE-2006-3928 extends beyond simple code execution, as it provides attackers with persistent access to the compromised system. Once exploited, attackers can establish backdoors, escalate privileges, and use the compromised server as a launch point for further attacks within the network infrastructure. The vulnerability affects not just the web application itself but potentially the entire underlying server environment, as PHP code execution allows access to server resources, databases, and file systems. Organizations running affected versions of WMNews face significant risk of data breaches, service disruption, and regulatory compliance violations. The vulnerability's exploitation requires minimal technical skill, making it particularly dangerous as it can be leveraged by threat actors with varying levels of expertise.
Mitigation strategies for this vulnerability require immediate action including patching the application to version 0.2b or later where the input validation has been implemented. System administrators should also implement proper input validation measures at the application level, ensuring that all user-supplied parameters are properly sanitized before being used in file inclusion operations. Network-level protections such as web application firewalls can help detect and block malicious requests attempting to exploit this vulnerability. Additionally, organizations should conduct thorough vulnerability assessments to identify other potentially vulnerable applications and implement proper security coding practices that prevent similar flaws in future development cycles. The vulnerability highlights the importance of following secure coding guidelines and implementing defense-in-depth strategies to protect against remote code execution attacks.