CVE-2008-6482 in Com Treeg
Summary
by MITRE
PHP remote file inclusion vulnerability in admin.treeg.php in the Flash Tree Gallery (com_treeg) component 1.0 for Joomla!, when register_globals is enabled, allows remote attackers to execute arbitrary PHP code via the mosConfig_live_site parameter.
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Analysis
by VulDB Data Team • 11/10/2024
The vulnerability identified as CVE-2008-6482 represents a critical remote file inclusion flaw within the Flash Tree Gallery component for Joomla! version 1.0. This security weakness specifically targets the admin.treeg.php file and exploits a dangerous configuration issue that occurs when register_globals is enabled on the web server. The vulnerability operates through a parameter injection attack vector where the mosConfig_live_site parameter becomes a conduit for arbitrary code execution. This flaw falls under the category of CWE-88, which describes improper neutralization of special elements used in an OS command, and more specifically aligns with CWE-94, representing improper execution of code through dynamic code generation or injection. The ATT&CK framework categorizes this vulnerability under T1190, known as Exploit Public-Facing Application, as it targets a web application component that is publicly accessible and exploitable through network-based attacks.
The technical implementation of this vulnerability relies on the dangerous practice of enabling register_globals in PHP configurations, which automatically creates global variables from GET, POST, and cookie data. When this setting is active, an attacker can manipulate the mosConfig_live_site parameter to include malicious PHP code or references to remote files. The attack chain begins with an attacker constructing a malicious URL that includes the target parameter with a payload designed to execute arbitrary code on the vulnerable server. This type of vulnerability is particularly dangerous because it allows attackers to execute code with the privileges of the web server, potentially leading to complete system compromise. The flaw essentially transforms a legitimate configuration parameter into an attack vector that can be leveraged for privilege escalation and persistent access to the affected system.
The operational impact of CVE-2008-6482 extends far beyond simple code execution, as it provides attackers with the capability to establish persistent backdoors, exfiltrate sensitive data, and potentially use the compromised server as a launch point for further attacks within the network. When exploited successfully, this vulnerability can result in complete system compromise, data breaches, and unauthorized access to sensitive information stored within the Joomla! application. The vulnerability affects not only the immediate web application but also potentially exposes the entire hosting environment to attack, as the attacker gains the ability to execute arbitrary commands on the server. Organizations using vulnerable versions of the Flash Tree Gallery component are at risk of having their web applications compromised, leading to potential regulatory compliance violations, financial losses, and reputational damage. The vulnerability's exploitation requires minimal technical skill, making it particularly dangerous as it can be leveraged by attackers with limited expertise in advanced exploitation techniques.
Mitigation strategies for CVE-2008-6482 should prioritize immediate remediation through patching the vulnerable component and disabling the dangerous register_globals configuration setting. System administrators should ensure that all Joomla! installations are updated to the latest versions and that the Flash Tree Gallery component is either upgraded or completely removed from production environments. The fundamental security principle of least privilege should be enforced by configuring PHP to disable register_globals through proper server configuration. Additionally, implementing web application firewalls and input validation mechanisms can provide additional layers of protection against similar vulnerabilities. Regular security audits and vulnerability assessments should be conducted to identify and remediate similar issues within the application stack. Organizations should also implement proper access controls and monitoring systems to detect unauthorized access attempts and potential exploitation of such vulnerabilities. The remediation process must include comprehensive testing to ensure that patches do not introduce regressions in application functionality while maintaining the security posture of the overall system infrastructure.