CVE-2024-6007 in NS-ASG Application Security Gateway
Summary
by MITRE • 06/15/2024
A vulnerability classified as critical has been found in Netentsec NS-ASG Application Security Gateway 6.3. This affects an unknown part of the file /protocol/iscgwtunnel/deleteiscgwrouteconf.php. The manipulation of the argument messagecontent leads to sql injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-268695. 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 • 06/15/2024
The vulnerability identified as CVE-2024-6007 represents a critical sql injection flaw within the Netentsec NS-ASG Application Security Gateway version 6.3, specifically affecting the deleteiscgwrouteconf.php script located in the /protocol/iscgwtunnel/ directory. This vulnerability resides in the handling of the messagecontent parameter, which serves as the attack vector for exploiting the underlying security weakness. The flaw allows malicious actors to manipulate input data in a manner that bypasses normal security controls and directly interacts with the database layer of the application. The vulnerability's classification as critical indicates the potential for severe impact including unauthorized data access, data corruption, and complete system compromise. The affected component operates within a security gateway environment, suggesting that successful exploitation could undermine network security controls and potentially provide attackers with elevated privileges within the protected network infrastructure.
The technical implementation of this sql injection vulnerability stems from insufficient input validation and sanitization of the messagecontent argument within the deleteiscgwrouteconf.php script. When user-supplied data is directly incorporated into sql query construction without proper escaping or parameterization, it creates an opportunity for attackers to inject malicious sql code. This vulnerability aligns with CWE-89 which specifically addresses sql injection flaws in software applications. The remote exploitability of this vulnerability means that attackers do not require physical access to the system or local network presence to carry out the attack, making it particularly dangerous in networked environments. The public disclosure of the exploit further compounds the risk, as malicious actors can immediately leverage this knowledge to target vulnerable installations without requiring additional reconnaissance or development time. The fact that the vendor has not responded to early disclosure attempts suggests potential delays in patch development or deployment, leaving affected organizations exposed for extended periods.
The operational impact of CVE-2024-6007 extends beyond simple data theft or corruption, as it represents a fundamental breach in the security architecture of the Application Security Gateway. Organizations relying on this security appliance for network protection face significant risks including unauthorized access to sensitive network configurations, potential data exfiltration from connected systems, and the possibility of establishing persistent backdoors within their network infrastructure. The vulnerability affects the gateway's ability to properly validate and process routing configuration data, which could lead to complete disruption of network security policies and potentially enable attackers to bypass security controls entirely. Attackers could leverage this vulnerability to manipulate routing configurations, redirect network traffic through malicious endpoints, or gain deeper access to underlying network resources that the security gateway is designed to protect. The implications are particularly severe for organizations that depend on this gateway for critical network security functions, as the compromise could result in widespread network infiltration and data breaches.
Organizations affected by this vulnerability should immediately implement mitigations including network segmentation to limit access to the vulnerable application, deployment of web application firewalls to detect and block sql injection attempts, and comprehensive monitoring for suspicious network activity. The recommended approach involves disabling or restricting access to the affected deleteiscgwrouteconf.php endpoint until a vendor patch is available. Security teams should also conduct thorough vulnerability assessments to identify any potential exploitation that may have already occurred within their environments. Additionally, implementing proper input validation and output encoding practices should be prioritized in all application components, following the principle of least privilege for application access controls. Organizations should consider deploying intrusion detection systems to monitor for exploitation attempts and establish incident response procedures that account for sql injection attacks. The ATT&CK framework categorizes this vulnerability under T1190 for exploit public-facing application, with potential progression to T1071 for application layer protocol usage and T1046 for network service scanning. The vulnerability's public disclosure status requires organizations to assume that exploitation attempts are already occurring in the wild, necessitating immediate action to protect against potential compromise.