CVE-2007-0793 in DVDdb
Summary
by MITRE
PHP remote file inclusion vulnerability in inc/common.php in GlobalMegaCorp dvddb 0.6 allows remote attackers to execute arbitrary PHP code via a URL in the config parameter.
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Analysis
by VulDB Data Team • 08/19/2018
The vulnerability identified as CVE-2007-0793 represents a critical remote file inclusion flaw in the GlobalMegaCorp dvddb 0.6 web application, specifically within the inc/common.php file. This vulnerability stems from inadequate input validation and sanitization mechanisms that fail to properly restrict user-supplied data from being directly incorporated into file inclusion operations. The flaw manifests when the application accepts a config parameter that contains a URL, which is then processed without sufficient validation to prevent malicious file inclusion attacks.
The technical exploitation of this vulnerability occurs through a classic remote code execution vector where attackers can manipulate the config parameter to reference external malicious PHP files hosted on remote servers. When the application processes this parameter in the inc/common.php file, it performs a file inclusion operation that loads and executes the attacker-controlled remote code. This vulnerability directly maps to CWE-88, which describes improper neutralization of special elements used in an expression, specifically in the context of file inclusion operations. The weakness lies in the application's failure to validate or sanitize user input before using it in dynamic file inclusion contexts, creating an attack surface where remote adversaries can inject arbitrary PHP code.
The operational impact of this vulnerability is severe and far-reaching, as it provides attackers with complete remote code execution capabilities on the affected web server. Successful exploitation can lead to full system compromise, data theft, privilege escalation, and potential lateral movement within the network infrastructure. Attackers can leverage this vulnerability to establish persistent backdoors, install malware, or use the compromised server as a launch point for further attacks against other systems. The vulnerability affects the availability, integrity, and confidentiality of the affected system, potentially resulting in significant business disruption and regulatory compliance violations. This type of vulnerability is particularly dangerous in environments where web applications handle sensitive data or serve as critical infrastructure components.
Mitigation strategies for CVE-2007-0793 should prioritize immediate patching of the affected application to version 0.7 or later, which contains the necessary input validation fixes. Organizations should implement strict input validation and sanitization measures that reject any non-numeric or non-validated URL inputs in file inclusion contexts. The principle of least privilege should be enforced by configuring the web application to use absolute paths rather than relative paths for file inclusion operations. Additionally, the application should be configured to disable remote file inclusion features entirely through php.ini settings that set allow_url_fopen and allow_url_include to off. Security monitoring should include detection of suspicious file inclusion patterns and unusual network connections to external domains. This vulnerability aligns with ATT&CK technique T1059.007 for remote code execution and T1190 for exploitation of remote services, making it a critical target for defensive security measures and incident response procedures.