CVE-2006-4074 in JD-Wiki
Summary
by MITRE
PHP remote file inclusion vulnerability in lib/tpl/default/main.php in the JD-Wiki Component (com_jd-wiki) 1.0.2 and earlier for Joomla!, when register_globals is enabled, allows remote attackers to execute arbitrary PHP code via a URL in the mosConfig_absolute_path parameter.
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Analysis
by VulDB Data Team • 07/12/2024
The CVE-2006-4074 vulnerability represents a critical remote file inclusion flaw in the JD-Wiki Component for Joomla! versions 1.0.2 and earlier. This vulnerability specifically targets the lib/tpl/default/main.php file within the component's directory structure, creating a dangerous attack vector that can be exploited by remote adversaries. The flaw manifests when the PHP configuration parameter register_globals is enabled on the target server, which significantly amplifies the exploitability of this vulnerability.
The technical mechanism behind this vulnerability involves the improper handling of user-supplied input within the mosConfig_absolute_path parameter. When register_globals is enabled, PHP automatically creates global variables from GET, POST, and cookie data, effectively merging external input directly into the global namespace. Attackers can manipulate this parameter by injecting malicious URLs that point to remote servers containing malicious PHP code. The vulnerability occurs because the application fails to properly validate or sanitize the input before using it in file inclusion operations, allowing attackers to inject arbitrary file paths that are then processed by PHP's include or require functions.
The operational impact of this vulnerability is severe and far-reaching, as it enables remote code execution on the affected Joomla ecosystem where the JD-Wiki component is installed, making it particularly dangerous for organizations running multiple Joomla! sites or those with shared hosting environments.
This vulnerability aligns with CWE-88, which describes improper neutralization of special elements used in an OS command, and CWE-94, which covers improper control of generation of code. The attack pattern corresponds to techniques described in the MITRE ATT&CK framework under T1059.007 for command and scripting interpreter, and T1505.003 for server-side include. Organizations should immediately disable the affected component or upgrade to versions that properly sanitize input parameters and implement proper validation mechanisms. The most effective mitigation strategy involves disabling register_globals in PHP configuration, implementing input validation and sanitization, using allow_url_include=Off in php.ini, and applying the latest security patches provided by the Joomla! development team. Additionally, network-level protections such as web application firewalls and proper access controls should be implemented to prevent exploitation attempts and limit the potential damage from successful attacks.