CVE-2006-4239 in Opt Max
Summary
by MITRE
PHP remote file inclusion vulnerability in include/urights.php in Outreach Project Tool (OPT) Max 1.2.6 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the CRM_inc parameter.
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Analysis
by VulDB Data Team • 07/14/2024
The vulnerability identified as CVE-2006-4239 represents a critical remote file inclusion flaw within the Outreach Project Tool Max 1.2.6 and earlier versions. This vulnerability specifically affects the include/urights.php component of the application, which processes user rights and access controls. The flaw stems from improper input validation and sanitization mechanisms that fail to adequately restrict user-supplied data before incorporating it into the application's execution flow. Attackers can exploit this weakness by manipulating the CRM_inc parameter to inject malicious URLs that point to remote malicious code repositories.
The technical exploitation of this vulnerability follows the classic remote file inclusion pattern where the application accepts user input through the CRM_inc parameter and directly includes it without proper validation or sanitization. This allows attackers to load arbitrary PHP files from remote servers, effectively bypassing local security controls and executing malicious code within the context of the web application. The vulnerability falls under CWE-88, which describes improper neutralization of special elements used in an expression, specifically in the context of remote file inclusion attacks. This weakness creates a pathway for attackers to perform code injection and potentially gain full control over the affected system.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with the capability to establish persistent access, escalate privileges, and potentially compromise the entire web server infrastructure. Once exploited, attackers can leverage the compromised system to conduct further reconnaissance, deploy additional malware, or use the compromised server as a pivot point for attacking other systems within the network. The vulnerability is particularly dangerous because it allows remote code execution without requiring authentication, making it an attractive target for automated exploitation tools. According to ATT&CK framework, this vulnerability maps to T1190 - Exploit Public-Facing Application, where adversaries leverage publicly accessible web applications to gain initial access to target networks.
Mitigation strategies for CVE-2006-4239 should focus on immediate patching of the affected Outreach Project Tool versions, as the vendor has released updates addressing this specific vulnerability. Organizations should implement input validation measures that reject any input containing URLs or special characters that could lead to file inclusion attacks. The principle of least privilege should be enforced by restricting the application's ability to include files from external sources, and web server configurations should be hardened to prevent remote file inclusion. Additionally, regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other applications and ensure that proper sanitization techniques are implemented throughout the codebase. Network-based intrusion detection systems should be configured to monitor for suspicious URL patterns and file inclusion attempts that may indicate exploitation attempts.