CVE-2007-6474 in Gf 3xplorer
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in GF-3XPLORER 2.4 allow remote attackers to inject arbitrary web script or HTML via the newdir parameter to index_3x.php, and unspecified other vectors.
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Analysis
by VulDB Data Team • 10/13/2024
The vulnerability identified as CVE-2007-6474 represents a critical cross-site scripting flaw affecting GF-3XPLORER version 2.4, a web-based file management system. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security weaknesses. The flaw specifically manifests through improper input validation and output encoding mechanisms within the application's processing of user-supplied data. Attackers can exploit this vulnerability by injecting malicious scripts through the newdir parameter in the index_3x.php script, which serves as a primary attack vector for executing unauthorized code within the context of a victim's browser session.
The technical implementation of this vulnerability demonstrates a classic XSS attack pattern where the application fails to sanitize or encode user input before incorporating it into dynamically generated web pages. When the newdir parameter is processed by index_3x.php, the application directly reflects user-supplied data without adequate sanitization, allowing attackers to inject malicious JavaScript code or HTML content. This weakness extends beyond the specific newdir parameter to include unspecified other vectors, indicating a broader lack of input validation across multiple application components. The vulnerability operates at the application layer and requires no special privileges or authentication to exploit, making it particularly dangerous as it can be leveraged by any remote attacker with access to the vulnerable system.
The operational impact of this vulnerability is significant and multifaceted, potentially enabling attackers to perform a wide range of malicious activities within the affected environment. Successful exploitation could allow attackers to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious websites, or even establish persistent backdoors within the compromised system. The attack surface extends beyond simple script injection to include potential privilege escalation scenarios, as the vulnerability could be chained with other exploits to gain deeper system access. According to ATT&CK framework category T1059, this vulnerability enables command and control activities through the execution of malicious code in the victim's browser context. The impact is particularly severe for organizations using GF-3XPLORER for file management, as attackers could potentially access sensitive files, manipulate system configurations, or use the compromised system as a launching point for further attacks against the broader network infrastructure.
Mitigation strategies for CVE-2007-6474 should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application. The primary remediation involves sanitizing all user-supplied input, particularly parameters like newdir, through proper encoding techniques such as HTML entity encoding or JavaScript escaping before rendering any user data in web responses. Organizations should implement a robust content security policy to prevent unauthorized script execution and consider implementing web application firewalls to detect and block malicious payloads. Additionally, the application should be updated to a patched version that addresses the root cause of the vulnerability, as the original version 2.4 is no longer supported and likely contains multiple other security weaknesses. The remediation process should include thorough code review to identify and address other unspecified vectors mentioned in the vulnerability description, ensuring comprehensive protection against similar cross-site scripting vulnerabilities. Security teams should also implement regular security assessments and penetration testing to identify potential XSS vulnerabilities in web applications, following industry standards such as those outlined in the OWASP Top Ten project and NIST cybersecurity frameworks.