CVE-2006-2819 in Igloo
Summary
by MITRE
PHP remote file inclusion vulnerability in Wiki.php in Barnraiser Igloo 0.1.9 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the c_node[class_path] parameter.
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Analysis
by VulDB Data Team • 06/30/2024
The vulnerability identified as CVE-2006-2819 represents a critical remote file inclusion flaw within the Barnraiser Igloo content management system version 0.1.9 and earlier. This issue resides in the Wiki.php component where user-supplied input is inadequately validated before being used in file inclusion operations. The vulnerability specifically affects the c_node[class_path] parameter which accepts URL values that are subsequently processed by the application's include or require functions. This flaw enables malicious actors to inject arbitrary PHP code execution by manipulating the class_path parameter with external URLs, effectively bypassing local file access controls and potentially allowing full system compromise.
The technical implementation of this vulnerability stems from improper input sanitization and unsafe file handling practices within the application's core functionality. When the application processes the c_node[class_path] parameter, it directly incorporates user-provided URLs into file inclusion directives without adequate validation or sanitization. This creates a path traversal and code execution vector that aligns with CWE-98, which describes improper file inclusion vulnerabilities where applications include files based on user input without proper validation. The vulnerability operates at the intersection of input validation failure and dynamic code execution, making it particularly dangerous as it allows attackers to execute arbitrary PHP code on the target server.
The operational impact of this vulnerability extends beyond simple code execution to encompass complete system compromise and data breaches. Attackers can leverage this vulnerability to upload malicious files, execute commands on the server, access sensitive data, and potentially establish persistent backdoors. The remote nature of the attack means that exploitation can occur from anywhere on the internet without requiring local access or authentication. This vulnerability directly maps to ATT&CK technique T1190, which covers the use of remote services for initial access, and T1059, which involves the execution of commands through remote access tools. The implications include potential data loss, system infiltration, and the ability to use the compromised server as a launch point for further attacks against networked systems.
Mitigation strategies for CVE-2006-2819 should focus on immediate patching of the Barnraiser Igloo application to version 0.2.0 or later where this vulnerability has been addressed. Organizations should implement strict input validation measures that sanitize all user-supplied parameters before processing, particularly those used in file inclusion operations. The application should be configured to disable remote file inclusion features entirely and restrict file access to predefined local paths only. Additionally, implementing web application firewalls with rules specifically targeting suspicious URL patterns and parameter manipulation can provide additional defense layers. Network segmentation and monitoring of unusual file access patterns should be employed to detect potential exploitation attempts. Regular security audits and vulnerability assessments should be conducted to identify similar flaws in other applications within the organization's infrastructure. The remediation process must also 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.