CVE-2024-8751 in MSC800
Summary
by MITRE • 09/13/2024
A vulnerability in the MSC800 allows an unauthenticated attacker to modify the product’s IP address over Sopas ET. This can lead to Denial of Service. Users are recommended to upgrade both MSC800 and MSC800 LFT to version V4.26 and S2.93.20 respectively which fixes this issue.
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Analysis
by VulDB Data Team • 09/13/2024
The CVE-2024-8751 vulnerability affects the MSC800 industrial automation device, specifically exposing a critical security flaw in its Sopas ET communication protocol implementation. This vulnerability represents a significant risk to industrial control systems as it allows unauthenticated attackers to manipulate the device's network configuration by modifying its IP address. The Sopas ET protocol, which is commonly used for communication with various industrial devices, has been found to lack proper authentication mechanisms, creating an exploitable entry point for malicious actors. The flaw specifically impacts the device's ability to maintain secure network parameters, potentially enabling attackers to disrupt normal operations through network-level interference.
The technical nature of this vulnerability stems from insufficient input validation and authentication checks within the Sopas ET interface implementation. When an attacker successfully modifies the IP address configuration, they can effectively sever communication between the device and its control systems, leading to a denial of service condition that can severely impact industrial processes. This type of vulnerability falls under the CWE category of insufficient authentication, specifically CWE-287, which addresses improper authentication mechanisms in network protocols. The flaw demonstrates a fundamental weakness in the device's security architecture where network configuration parameters are not properly protected against unauthorized modification attempts.
The operational impact of CVE-2024-8751 extends beyond simple network disruption, as industrial environments relying on MSC800 devices may experience cascading failures in their automation systems. When the IP address is modified without authentication, the device may become unreachable from its control network, causing operators to lose visibility into critical processes and potentially leading to production halts. This vulnerability particularly affects environments where industrial devices are connected directly to corporate networks without proper segmentation, as attackers can leverage this weakness to move laterally within the industrial control network. The denial of service condition can result in significant financial losses and safety risks in manufacturing environments where continuous operation is critical.
Organizations must prioritize immediate remediation of this vulnerability through the recommended firmware upgrades to MSC800 version V4.26 and MSC800 LFT version S2.93.20, which contain patches addressing the authentication gaps in the Sopas ET implementation. Additionally, network segmentation strategies should be implemented to isolate industrial devices from general corporate networks, reducing the attack surface available to potential adversaries. Security teams should conduct comprehensive network scans to identify all affected devices and implement monitoring for suspicious network configuration changes that could indicate exploitation attempts. The vulnerability aligns with ATT&CK technique T1071.004 for application layer protocol manipulation, where attackers exploit communication protocols to gain unauthorized access to network resources. Proper network hygiene practices including regular firmware updates, network monitoring, and access control reviews should be implemented to prevent similar vulnerabilities from being exploited in the future.