CVE-2023-6904 in NxFilter
Summary
by MITRE • 12/18/2023
A vulnerability classified as problematic was found in Jahastech NxFilter 4.3.2.5. This vulnerability affects unknown code of the file /config,admin.jsp. The manipulation of the argument admin_name leads to cross-site request forgery. The attack can be initiated remotely. VDB-248266 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 01/12/2024
This vulnerability resides within the Jahastech NxFilter 4.3.2.5 web application where a cross-site request forgery flaw has been identified in the administrative interface. The specific file path /config,admin.jsp contains the vulnerable code that processes the admin_name parameter, creating an opportunity for attackers to manipulate administrative actions through forged requests. The vulnerability classification as problematic indicates a significant security risk that requires immediate attention from system administrators and security teams.
The technical implementation of this CSRF vulnerability occurs when an attacker crafts malicious requests that exploit the lack of proper authentication verification within the admin.jsp file. When the admin_name parameter is manipulated, the application fails to validate the authenticity of the request origin, allowing unauthorized users to perform administrative actions on behalf of authenticated users. This flaw specifically affects the configuration management interface where administrative privileges are required to modify system settings, making it particularly dangerous for network filtering and security policy management systems.
The operational impact of this vulnerability extends beyond simple privilege escalation as it provides attackers with the ability to manipulate critical network security configurations through remote exploitation. Since the attack vector is remote and does not require authentication, an attacker could potentially modify firewall rules, alter security policies, change user permissions, or perform other administrative functions that could severely compromise network security. The vulnerability affects the entire administrative interface of the NxFilter system, potentially allowing full control over network filtering capabilities and user access management.
This vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery flaws in web applications, and maps to ATT&CK technique T1078.004 for valid accounts and T1566 for phishing attacks that could be leveraged to exploit this weakness. Organizations should implement multiple layers of defense including anti-CSRF tokens in all administrative interfaces, proper origin validation, and session management controls. The lack of vendor response to early disclosure attempts creates additional risk as the vulnerability remains unpatched in production environments, leaving systems exposed to potential exploitation by threat actors who may have discovered the same flaw.
Security teams should immediately implement network monitoring to detect suspicious administrative activity and consider deploying web application firewalls to help identify and block CSRF attack patterns. The recommended mitigation strategy includes enforcing strict referer header validation, implementing CSRF tokens for all administrative operations, and ensuring that administrative sessions are properly secured with secure cookies and proper session timeout mechanisms. Additionally, organizations should conduct regular security assessments of their network filtering infrastructure to identify similar vulnerabilities that may exist in other administrative interfaces or management systems.