CVE-2006-1022 in MemberShip Management System
Summary
by MITRE
PHP remote file include vulnerability in sol_menu.php in PeHePe Uyelik Sistemi (aka PeHePe MemberShip Management System) 3 allows remote attackers to include and execute arbitrary PHP code via a URL in the uye_klasor parameter, along with a misafir[] parameter that is set to UYE_SEVIYE.
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Analysis
by VulDB Data Team • 09/16/2017
The vulnerability described in CVE-2006-1022 represents a critical remote code execution flaw within the PeHePe MemberShip Management System version 3, specifically affecting the sol_menu.php component. This vulnerability falls under the category of insecure direct object references and remote file inclusion attacks, which are classified as CWE-829 and CWE-20 respectively. The system's failure to properly validate user input in the uye_klasor parameter creates an exploitable condition that allows remote attackers to inject and execute arbitrary PHP code on the target server. The vulnerability is particularly dangerous because it leverages a misafir[] parameter that is set to UYE_SEVIYE, creating a chain of trust issues that bypasses normal security mechanisms.
The technical implementation of this vulnerability exploits the PHP language's ability to include files from remote locations when the target system has allow_url_include enabled. Attackers can manipulate the uye_klasor parameter to point to malicious remote servers hosting specially crafted PHP scripts, while the misafir[] parameter with UYE_SEVIYE value serves as a trigger mechanism that activates the vulnerable code path. This creates a scenario where an attacker can execute arbitrary commands on the web server, potentially gaining full control over the system. The flaw demonstrates poor input validation practices and inadequate sanitization of user-supplied data, allowing attackers to inject malicious URLs that are then processed by the PHP include function.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with complete system compromise capabilities. An attacker who successfully exploits this vulnerability can execute arbitrary code with the privileges of the web server process, potentially leading to data theft, system infiltration, and further lateral movement within the network. The vulnerability aligns with ATT&CK technique T1190 for exploitation of remote services and T1059 for command and scripting interpreter usage. Organizations running this version of PeHePe MemberShip Management System face significant risk of unauthorized access, data breaches, and potential use as a foothold for broader attacks within their infrastructure. The vulnerability affects not only the immediate system but can also compromise other systems that trust the compromised server.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security improvements. The most effective immediate solution involves disabling allow_url_include in the PHP configuration and implementing strict input validation for all user-supplied parameters, particularly those used in file inclusion operations. Organizations should also implement proper parameter sanitization and utilize whitelisting approaches for file paths to prevent arbitrary code execution. Additionally, the system should be updated to a patched version of PeHePe MemberShip Management System, as the vulnerability has been addressed in subsequent releases. Network-level protections such as web application firewalls can provide additional defense-in-depth measures, while regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other applications. The vulnerability also highlights the importance of following secure coding practices and adhering to the principle of least privilege when implementing file inclusion mechanisms in web applications.