CVE-2008-5581 in mini-pub
Summary
by MITRE
PHP remote file inclusion vulnerability in mini-pub.php/front-end/img.php in mini-pub 0.3 allows remote attackers to execute arbitrary PHP code via a URL in the sFileName parameter.
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Analysis
by VulDB Data Team • 11/07/2024
The vulnerability identified as CVE-2008-5581 represents a critical remote file inclusion flaw in the mini-pub content management system version 0.3. This vulnerability exists within the mini-pub.php and front-end/img.php scripts, creating an exploitable condition that allows attackers to inject and execute arbitrary PHP code on the target server. The flaw specifically manifests when the application fails to properly validate or sanitize user-supplied input passed through the sFileName parameter, enabling malicious actors to manipulate the application's behavior through crafted URLs.
The technical implementation of this vulnerability stems from improper input validation within the PHP application's file handling mechanisms. When the sFileName parameter is processed, the application directly incorporates user-provided URLs into file inclusion operations without adequate sanitization or verification. This creates a classic remote file inclusion vulnerability that falls under CWE-88, which describes improper neutralization of argument delimiters in a command. The vulnerability is particularly dangerous because it allows attackers to include remote files from external servers, effectively enabling them to execute arbitrary code on the target system with the privileges of the web application.
From an operational impact perspective, this vulnerability presents a severe threat to system integrity and security. Successful exploitation allows remote attackers to execute malicious code, potentially leading to complete system compromise, data exfiltration, and unauthorized access to sensitive information. The vulnerability enables attackers to upload and execute backdoor scripts, modify existing files, or establish persistent access to the compromised system. This type of vulnerability is particularly concerning in web applications as it provides attackers with a direct pathway to execute arbitrary commands on the server, often bypassing traditional security controls.
The exploitation of this vulnerability aligns with ATT&CK technique T1190, which describes the use of remote services to gain initial access to target systems. Attackers can leverage this vulnerability by crafting malicious URLs that point to their controlled servers containing malicious PHP payloads. The impact extends beyond immediate code execution to include potential privilege escalation, lateral movement within network environments, and the establishment of persistent command and control channels. Organizations using mini-pub 0.3 are particularly vulnerable as the application does not implement proper input validation or secure file handling practices.
Mitigation strategies for this vulnerability require immediate implementation of several defensive measures. The primary remediation involves implementing proper input validation and sanitization for all user-supplied parameters, particularly those used in file inclusion operations. Applications should employ allowlists of acceptable file paths rather than accepting arbitrary URLs, and all external file inclusion operations should be strictly controlled and validated. Organizations should also implement proper parameter sanitization, input filtering, and secure coding practices that prevent the direct incorporation of user input into file system operations. Additionally, regular security updates, web application firewalls, and proper access controls should be deployed to reduce the attack surface and prevent exploitation of similar vulnerabilities. The vulnerability demonstrates the critical importance of secure coding practices and proper input validation in preventing remote code execution flaws that can lead to complete system compromise.