CVE-2007-0573 in nsGalPHP
Summary
by MITRE
PHP remote file inclusion vulnerability in includes/config.inc.php in nsGalPHP 0.41 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the racineTBS parameter.
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Analysis
by VulDB Data Team • 08/19/2024
The vulnerability identified as CVE-2007-0573 represents a critical remote file inclusion flaw within the nsGalPHP web application version 0.41 and earlier. This vulnerability exists in the includes/config.inc.php file where the racineTBS parameter is improperly handled, allowing remote attackers to inject malicious URLs that are then executed as PHP code on the target server. The flaw stems from inadequate input validation and sanitization practices that permit user-supplied data to directly influence the inclusion process of PHP files, creating an avenue for arbitrary code execution.
This vulnerability falls under the CWE-88 category of Improper Neutralization of Argument Delimiters in a Command, which is a subset of the broader CWE-94 weakness related to Code Injection. The attack vector leverages the PHP include functionality to pull in remote content, making it particularly dangerous as it can be exploited to download and execute malware, backdoors, or other malicious payloads from remote servers controlled by attackers. The vulnerability is classified as a remote code execution flaw that can be exploited without authentication, making it highly attractive to threat actors.
The operational impact of this vulnerability extends beyond simple code execution to encompass full system compromise. Attackers can leverage this flaw to establish persistent access, escalate privileges, and potentially use the compromised server as a launchpad for further attacks within the network. The vulnerability affects not only the immediate application but can also provide attackers with access to underlying server resources, databases, and potentially other systems within the same network infrastructure. This makes it particularly dangerous in environments where nsGalPHP is deployed on servers hosting sensitive data or serving as part of larger web application ecosystems.
Mitigation strategies for CVE-2007-0573 require immediate patching of the nsGalPHP application to version 0.42 or later, which contains the necessary fixes to prevent remote file inclusion. Organizations should implement input validation and sanitization measures to ensure that all user-supplied parameters are properly validated before being used in file inclusion operations. Additionally, the principle of least privilege should be enforced by restricting PHP's ability to include remote files through configuration changes such as disabling allow_url_include in php.ini. Network-level protections including firewall rules that block outbound connections to suspicious domains and intrusion detection systems that monitor for exploitation attempts should be deployed. The ATT&CK framework categorizes this vulnerability under T1190 - Exploit Public-Facing Application, highlighting the need for comprehensive application security testing and regular vulnerability assessments to identify and remediate similar weaknesses in web applications.