CVE-2007-6649 in MatPo Bilder Galerie
Summary
by MITRE
PHP remote file inclusion vulnerability in includes/tumbnail.php in MatPo Bilder Galerie 1.1 allows remote attackers to execute arbitrary PHP code via a URL in the config[root_ordner] parameter.
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Analysis
by VulDB Data Team • 10/13/2024
The vulnerability identified as CVE-2007-6649 represents a critical remote file inclusion flaw within the MatPo Bilder Galerie 1.1 web application, specifically affecting the includes/tumbnail.php file. This vulnerability falls under the category of insecure direct object references and remote code execution, creating a significant security risk for affected systems. The flaw manifests when the application fails to properly validate or sanitize user-supplied input parameters, particularly the config[root_ordner] parameter that controls directory paths within the application's file structure. Attackers can exploit this weakness by injecting malicious URLs into the parameter, enabling them to execute arbitrary PHP code on the target server.
The technical implementation of this vulnerability stems from improper input validation mechanisms within the MatPo Bilder Galerie application. When the tumbnail.php script processes the config[root_ordner] parameter, it directly incorporates user-provided values without adequate sanitization or validation checks. This allows attackers to manipulate the application's behavior by supplying URLs that point to external resources containing malicious PHP code. The vulnerability specifically aligns with CWE-98, which describes improper file inclusion vulnerabilities where applications include files based on user-supplied input without proper validation. The flaw operates at the application level, bypassing standard security controls by leveraging the legitimate file inclusion functionality of PHP to execute attacker-controlled code.
The operational impact of this vulnerability extends beyond simple code execution, potentially allowing attackers to gain complete control over affected servers. An attacker who successfully exploits this vulnerability can execute arbitrary commands on the web server, potentially leading to data theft, system compromise, or further lateral movement within the network infrastructure. The attack vector requires minimal privileges since it operates through standard web application interfaces, making it particularly dangerous for public-facing web applications. This vulnerability directly maps to ATT&CK technique T1190, which describes the exploitation of remote services through web application vulnerabilities, and T1059, which encompasses the execution of commands through scripting languages. The implications are severe as the compromised server could serve as a staging point for additional attacks or be used to host malicious content.
Mitigation strategies for CVE-2007-6649 require immediate implementation of multiple defensive measures to protect affected systems. Organizations should first apply the vendor-supplied patches or upgrade to versions that address this vulnerability, as the original application appears to be outdated and no longer supported. Input validation should be strengthened by implementing strict parameter sanitization, particularly for all user-supplied input that influences file inclusion operations. The application should be configured to use absolute paths instead of relative paths, and all dynamic file inclusion operations should be validated against a whitelist of approved directories. Network-level protections such as web application firewalls should be deployed to monitor and block suspicious requests containing potentially malicious URLs. Additionally, the principle of least privilege should be enforced by restricting file inclusion capabilities to only essential operations and ensuring that the web server operates with minimal required permissions to reduce potential damage from successful exploitation attempts.