CVE-2008-6221 in Dada Mail Manager
Summary
by MITRE
PHP remote file inclusion vulnerability in config.dadamail.php in the Dada Mail Manager (com_dadamail) component 2.6 for Joomla! allows remote attackers to execute arbitrary PHP code via a URL in the GLOBALS[mosConfig_absolute_path] parameter.
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Analysis
by VulDB Data Team • 11/10/2024
The CVE-2008-6221 vulnerability represents a critical remote file inclusion flaw in the Dada Mail Manager component for Joomla installations and allows attackers to manipulate the application's path resolution mechanism. The vulnerability enables remote code execution through a carefully crafted URL that gets processed as part of the file inclusion chain, making it particularly dangerous for web applications that rely on dynamic path resolution.
The technical implementation of this vulnerability stems from improper input validation and insecure coding practices that permit unfiltered user input to influence the application's file inclusion behavior. When the GLOBALS[mosConfig_absolute_path] parameter receives a malicious URL, the application fails to validate or sanitize this input before using it in a require_once or include statement. This creates an exploitable condition where attackers can inject arbitrary PHP code through the remote file inclusion mechanism, effectively bypassing normal application security controls. The vulnerability aligns with CWE-98, which describes improper restriction of operations within a recognized authority, and specifically manifests as a remote file inclusion (RFI) vulnerability that operates at the application layer. The flaw demonstrates a classic lack of input sanitization and output encoding that violates fundamental secure coding principles.
The operational impact of CVE-2008-6221 extends far beyond simple code execution, as it provides attackers with complete control over affected systems and can lead to full compromise of web applications. Once exploited, attackers can upload backdoors, exfiltrate sensitive data, modify application behavior, or use the compromised system as a launching point for further attacks within the network. The vulnerability affects Joomla as a content management system. The remote nature of the exploit means that attackers can leverage this vulnerability from anywhere on the internet without requiring local access or credentials, significantly increasing the attack surface and potential damage. This vulnerability also aligns with ATT&CK technique T1190, which describes the use of remote file inclusion to execute arbitrary code, and represents a critical entry point for attackers seeking persistent access to web applications.
Mitigation strategies for CVE-2008-6221 must address both immediate remediation and long-term security improvements to prevent similar vulnerabilities from emerging. The most effective immediate solution involves patching or upgrading to a non-vulnerable version of the Dada Mail Manager component, as this vulnerability was resolved in subsequent releases. Administrators should also implement input validation and sanitization measures that prevent user-controllable parameters from influencing file inclusion operations, particularly by disabling the ability to pass external URLs to include functions. Additional protective measures include implementing web application firewalls that can detect and block suspicious URL patterns, disabling remote file inclusion in PHP configuration, and conducting thorough code reviews to identify similar insecure coding patterns. Organizations should also enforce the principle of least privilege for web application directories and implement proper access controls to limit the damage that can be caused by successful exploitation. The vulnerability highlights the importance of following secure coding practices and adhering to industry standards such as OWASP Top Ten and NIST guidelines for preventing remote file inclusion attacks.