CVE-2006-4012 in Savewebportal
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in circeOS SaveWeb Portal 3.4 allow remote attackers to execute arbitrary PHP code via a URL in the SITE_Path parameter to (1) poll/poll.php or (2) poll/view_polls.php. NOTE: the menu_dx.php vector is already covered by CVE-2005-2687.
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Analysis
by VulDB Data Team • 07/11/2024
The vulnerability identified as CVE-2006-4012 represents a critical remote code execution flaw affecting the circeOS SaveWeb Portal version 3.4. This issue stems from improper input validation within the application's handling of user-supplied data, specifically in the SITE_Path parameter that is processed by two distinct script files. The vulnerability operates within the context of PHP's remote file inclusion mechanism, which allows attackers to inject malicious URLs that get executed on the target server. This particular flaw enables remote attackers to execute arbitrary PHP code without authentication, making it a severe security risk for any system running the affected software version.
The technical exploitation of this vulnerability occurs through the manipulation of the SITE_Path parameter in two specific endpoints: poll/poll.php and poll/view_polls.php. When these scripts process user input containing a URL in the SITE_Path parameter, they fail to properly sanitize or validate the input before using it in file inclusion operations. This creates a pathway for attackers to inject malicious PHP code that gets executed on the server with the privileges of the web application. The vulnerability is classified under CWE-88 as improper neutralization of argument delimiters in a command, which directly relates to the improper handling of user input in the file inclusion context. The flaw essentially allows attackers to load and execute arbitrary PHP scripts from remote servers, potentially leading to complete system compromise.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with persistent access to the compromised system. Once exploited, attackers can establish backdoors, exfiltrate sensitive data, modify system configurations, or use the compromised server as a launch point for further attacks within the network. The vulnerability affects organizations that deploy circeOS SaveWeb Portal 3.4, potentially exposing them to data breaches, service disruption, and compliance violations. The remote nature of the exploit means that attackers can target vulnerable systems from anywhere on the internet without requiring physical access or prior authentication. This vulnerability aligns with ATT&CK technique T1190 for Exploit Public-Facing Application, which describes how attackers target vulnerabilities in externally accessible applications to gain initial access to target systems.
Mitigation strategies for CVE-2006-4012 should prioritize immediate patching of the affected circeOS SaveWeb Portal version 3.4, as no official patches exist for this specific vulnerability. Organizations must implement input validation measures to sanitize all user-supplied data, particularly parameters used in file inclusion operations. The implementation of PHP's safe_mode restrictions and disabling remote file inclusion capabilities through configuration settings can provide additional protection layers. Network segmentation and firewall rules should be configured to restrict access to the vulnerable application, while monitoring systems should be deployed to detect suspicious file inclusion patterns. Security teams should also consider implementing web application firewalls to filter malicious requests targeting known vulnerability patterns. Regular vulnerability assessments and security audits should be conducted to identify similar issues in other applications, as this vulnerability demonstrates the importance of proper input validation in preventing remote code execution attacks. The remediation process should include comprehensive testing to ensure that the patch does not introduce regressions in application functionality while maintaining the security posture against similar remote file inclusion vulnerabilities.