CVE-2007-0359 in Uberghey
Summary
by MITRE
PHP remote file inclusion vulnerability in frontpage.php in Uberghey CMS 0.3.1 allows remote attackers to execute arbitrary PHP code via a URL in the setup_folder parameter.
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Analysis
by VulDB Data Team • 08/18/2024
The vulnerability identified as CVE-2007-0359 represents a critical remote file inclusion flaw within the Uberghey CMS version 0.3.1, specifically affecting the frontpage.php script. This vulnerability falls under the category of insecure direct object reference and remote code execution issues that have been extensively documented in cybersecurity frameworks. The flaw exists due to inadequate input validation and sanitization mechanisms within the application's parameter handling, allowing malicious actors to inject arbitrary URLs that are subsequently processed as PHP include directives. The vulnerability is particularly dangerous because it enables attackers to execute arbitrary code on the target server with the privileges of the web application, potentially leading to complete system compromise.
The technical implementation of this vulnerability stems from the improper handling of the setup_folder parameter within the frontpage.php script. When a user supplies a URL value to this parameter, the application fails to validate or sanitize the input before using it in an include or require statement. This creates a classic remote file inclusion scenario where an attacker can inject a malicious URL pointing to external PHP code hosted on a remote server. The vulnerability maps directly to CWE-88, which describes improper neutralization of argument separators in shell commands, and CWE-94, which addresses improper execution of code. According to the MITRE ATT&CK framework, this vulnerability would be categorized under T1190 for Exploit Public-Facing Application and T1059 for Command and Scripting Interpreter, as it allows for arbitrary code execution through web-based attack vectors.
The operational impact of this vulnerability extends far beyond simple code execution, as it provides attackers with a foothold for further exploitation within the compromised system. Once an attacker successfully exploits this vulnerability, they can upload additional malicious files, establish persistent backdoors, or escalate privileges to gain administrative access to the entire web application and underlying server infrastructure. The attack surface is particularly concerning given that Uberghey CMS was a relatively niche content management system, making it less likely to receive regular security updates and patches. Organizations running this vulnerable version face significant risk of data breaches, service disruption, and potential regulatory compliance violations. The vulnerability also demonstrates the importance of input validation and the principle of least privilege in web application security.
Mitigation strategies for CVE-2007-0359 must address both immediate remediation and long-term security posture improvements. The most effective immediate solution involves patching the Uberghey CMS to version 0.3.2 or later, which contains the necessary input validation fixes. Organizations should also implement proper parameter sanitization by validating all user inputs against a whitelist of allowed characters and patterns, particularly for parameters used in include statements. The principle of input validation aligns with security standards such as those outlined in the OWASP Top Ten and ISO/IEC 27001. Additional defensive measures include disabling remote file inclusion features in PHP configurations, implementing web application firewalls to detect and block suspicious URL patterns, and conducting regular security audits to identify similar vulnerabilities in other applications. Network segmentation and monitoring should also be enhanced to detect unauthorized access attempts and potential exploitation activities. Organizations should also consider implementing automated vulnerability scanning tools to continuously monitor for similar weaknesses in their web applications and infrastructure.