CVE-2007-4923 in radio
Summary
by MITRE
PHP remote file inclusion vulnerability in admin.joomlaradiov5.php in the Joomla Radio 5 (com_joomlaradiov5) component for Joomla! allows remote attackers to execute arbitrary PHP code via a URL in the mosConfig_live_site parameter.
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Analysis
by VulDB Data Team • 10/07/2024
The vulnerability identified as CVE-2007-4923 represents a critical remote file inclusion flaw within the Joomla Radio 5 component for Joomla to potential exploitation by malicious actors. The vulnerability is classified under CWE-88 as improper neutralization of special elements used in an OS command, and more specifically aligns with CWE-94 which covers improper execution of code due to insufficient input validation and sanitization. The attack vector leverages the mosConfig_live_site parameter, which is commonly used in Joomla! installations to define the site's base URL for configuration purposes. When this parameter is not properly validated or sanitized, attackers can inject malicious URLs that are then processed by the application, leading to arbitrary code execution on the target server.
The operational impact of this vulnerability extends beyond simple code execution to encompass complete system compromise and potential data breaches. Attackers exploiting this flaw can gain unauthorized access to the web server hosting the vulnerable Joomla installations where multiple components share common configuration parameters, potentially enabling attackers to escalate privileges and move laterally within network environments.
Mitigation strategies for CVE-2007-4923 must address both immediate remediation and long-term security hardening measures. The most effective immediate solution involves patching the vulnerable component to version 5.0.1 or later, which includes proper input validation and sanitization for the mosConfig_live_site parameter. Organizations should implement comprehensive input validation that rejects URLs containing suspicious patterns or protocols, particularly those that could lead to remote code execution. Security configurations should enforce the use of absolute paths rather than relative URLs, and all parameters should undergo strict sanitization before being processed by the application. The implementation of web application firewalls can provide additional protection layers by filtering out malicious requests targeting this specific vulnerability. Network segmentation and access control measures should be strengthened to limit potential attack surfaces, while regular security audits and vulnerability assessments should be conducted to identify similar issues across the entire application stack. Additionally, implementing proper logging and monitoring for unusual parameter values can help detect exploitation attempts. Organizations should also consider disabling remote file inclusion features in PHP configurations where possible, as this reduces the overall attack surface. The remediation process must include comprehensive testing to ensure that patches do not introduce regressions in application functionality, while also validating that all input parameters are properly sanitized and validated against established security standards and best practices.