CVE-2006-4723 in raidenhttpd
Summary
by MITRE
PHP remote file inclusion vulnerability in raidenhttpd-admin/slice/check.php in RaidenHTTPD 1.1.49, when register_globals and WebAdmin is enabled, allows remote attackers to execute arbitrary PHP code via a URL in the SoftParserFileXml parameter.
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Analysis
by VulDB Data Team • 07/19/2024
The vulnerability described in CVE-2006-4723 represents a critical remote file inclusion flaw in the RaidenHTTPD web server software version 1.1.49. This issue specifically affects the administrative component of the software, namely the raidenhttpd-admin/slice/check.php script, which processes user-supplied input without proper validation or sanitization. The vulnerability arises from the dangerous combination of two deprecated PHP configurations: register_globals enabled and WebAdmin functionality active. When these conditions are met, the application fails to properly validate the SoftParserFileXml parameter, creating an opportunity for malicious actors to inject arbitrary PHP code through remote file inclusion attacks.
The technical exploitation of this vulnerability occurs through the manipulation of the SoftParserFileXml parameter within the check.php script. When register_globals is enabled, PHP automatically creates global variables from request data, including GET and POST parameters. This configuration, combined with the WebAdmin feature that processes external file references, allows attackers to inject malicious URLs into the SoftParserFileXml parameter. The application then attempts to include and execute the remote file specified in this parameter, effectively executing arbitrary PHP code on the target system. This vulnerability directly maps to CWE-88, which describes the improper neutralization of argument delimiters in a command or injection attack, and CWE-94, which addresses the execution of arbitrary code or commands through improper input validation.
The operational impact of this vulnerability is severe and multifaceted. Successful exploitation enables remote attackers to execute arbitrary code with the privileges of the web server process, potentially leading to complete system compromise. Attackers can leverage this vulnerability to install backdoors, exfiltrate sensitive data, modify web content, or use the compromised server as a launch point for further attacks within the network infrastructure. The vulnerability affects any system running RaidenHTTPD 1.1.49 with the specific configuration of register_globals enabled and WebAdmin activated, making it particularly dangerous in environments where legacy configurations persist. This vulnerability aligns with ATT&CK technique T1190, which covers the exploitation of remote services through web application vulnerabilities, and T1059, which addresses the execution of malicious code through command injection.
Mitigation strategies for this vulnerability require immediate remediation of the underlying configuration issues. The primary solution involves disabling register_globals in the PHP configuration, as this setting is inherently dangerous and deprecated in modern PHP versions. Additionally, administrators should disable the WebAdmin functionality when not actively required or ensure that it operates with strict input validation and sanitization. The application code should be updated to properly validate and sanitize all user-supplied input parameters, implementing proper parameter validation and using secure coding practices such as input filtering and output encoding. Organizations should also consider implementing network-level protections such as web application firewalls and intrusion detection systems to monitor for exploitation attempts. Regular security audits and vulnerability assessments should be conducted to identify and remediate similar configuration weaknesses in other web applications and services within the infrastructure.