CVE-2023-7094 in NS-ASG Application Security Gateway
Summary
by MITRE • 12/25/2023
A vulnerability classified as problematic was found in Netentsec NS-ASG Application Security Gateway 6.3. Affected by this vulnerability is an unknown functionality of the file /protocol/nsasg6.0.tgz. The manipulation leads to information disclosure. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-248941 was 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 • 01/18/2024
The vulnerability identified as CVE-2023-7094 represents a significant security flaw in the Netentsec NS-ASG Application Security Gateway version 6.3, specifically affecting the /protocol/nsasg6.0.tgz file component. This issue falls under the category of information disclosure vulnerabilities, which can potentially expose sensitive data to unauthorized parties. The vulnerability's classification as problematic indicates a substantial risk level that requires immediate attention from security practitioners. The affected device operates as an application security gateway, suggesting it handles critical network traffic and security policies that make this vulnerability particularly dangerous.
The technical nature of this flaw involves an information disclosure vulnerability that can be exploited through remote access methods. The attack vector being remotely exploitable means that threat actors do not require physical access to the device or network to leverage this weakness. The vulnerability affects an unspecified functionality within the nsasg6.0.tgz file, which likely contains core application components or configuration data that should remain protected. This type of vulnerability typically stems from improper access controls, inadequate input validation, or flawed privilege management within the application's architecture. The fact that the exploit has been publicly disclosed and is potentially in use by threat actors significantly increases the risk exposure for affected organizations.
The operational impact of CVE-2023-7094 extends beyond simple data exposure, as it could enable attackers to gain insights into the security gateway's operational parameters, network configurations, or potentially sensitive application data. This information disclosure could facilitate more sophisticated attacks, including privilege escalation attempts, network mapping, or targeted attacks against other systems within the network perimeter. Organizations using this security gateway may find their defensive posture weakened, as attackers could potentially discover security gaps, internal network structures, or application-specific information that would otherwise remain hidden. The vulnerability's presence in the protocol handling component suggests it could affect how the device processes and manages security protocols, potentially compromising the integrity of network traffic protection.
Security mitigations for this vulnerability should include immediate deployment of vendor patches or updates if available, though the lack of vendor response to early notifications presents a significant challenge. Network segmentation and access control measures should be implemented to limit potential attack surfaces, while monitoring systems should be enhanced to detect unusual access patterns or data exfiltration attempts. The vulnerability aligns with CWE-200, which specifically addresses information disclosure weaknesses in software systems, and could potentially map to ATT&CK techniques such as T1083 (File and Directory Discovery) or T1566 (Phishing) if attackers leverage the disclosed information for further exploitation. Organizations should also consider implementing network traffic analysis tools to detect anomalous behavior that might indicate exploitation attempts, while maintaining detailed audit logs to track access to sensitive components within the security gateway. Given the public availability of the exploit, proactive threat hunting and vulnerability assessment activities become critical for organizations that have not yet patched their affected systems.