CVE-2018-8847 in 9000X DriveA
Summary
by MITRE
Eaton 9000X DriveA versions 2.0.29 and prior has a stack-based buffer overflow vulnerability, which may allow remote code execution.
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Analysis
by VulDB Data Team • 03/04/2020
The CVE-2018-8847 vulnerability represents a critical stack-based buffer overflow flaw discovered in Eaton 9000X DriveA versions 2.0.29 and earlier. This vulnerability exists within the network communication handling mechanisms of the device firmware, specifically affecting the processing of incoming network packets. The flaw stems from insufficient input validation and bounds checking during the parsing of network traffic, creating a condition where an attacker can craft malicious payloads that exceed the allocated buffer space. Such buffer overflow conditions are particularly dangerous as they can be exploited to overwrite adjacent memory locations, potentially leading to arbitrary code execution. The vulnerability affects the device's ability to process network commands properly, making it susceptible to remote exploitation without requiring authentication or physical access to the device. The stack-based nature of this overflow means that the attack can directly manipulate the program execution flow by overwriting return addresses and function pointers stored on the call stack. This type of vulnerability is classified under CWE-121 as stack-based buffer overflow, which is a well-documented weakness in software development practices that fails to properly validate input length against allocated buffer boundaries.
The operational impact of this vulnerability extends significantly across enterprise and industrial environments that rely on Eaton 9000X DriveA devices for power management and distribution. These devices are commonly deployed in data centers, manufacturing facilities, and critical infrastructure environments where uninterrupted power supply is essential. An attacker exploiting this vulnerability could gain remote code execution privileges on the affected device, potentially leading to complete system compromise and unauthorized access to the broader network infrastructure. The remote code execution capability allows adversaries to install malicious software, modify device configurations, or establish persistent access points within the network. This vulnerability is particularly concerning for industrial control systems and power distribution networks where such devices serve as critical components in maintaining operational continuity. The exploitation of this vulnerability could result in service disruption, data integrity compromise, and potential physical damage to connected equipment. Organizations relying on these devices for mission-critical operations face significant risk of operational downtime and security breaches. The vulnerability's impact aligns with ATT&CK technique T1210 which covers exploiting known vulnerabilities to gain access to systems, and T1059 which addresses execution through command and scripting interpreters. The attack surface is further expanded by the fact that the vulnerability can be exploited remotely, making it accessible to threat actors regardless of their physical proximity to the target devices.
Mitigation strategies for CVE-2018-8847 should prioritize immediate firmware updates from Eaton to address the buffer overflow vulnerability. Organizations must conduct comprehensive inventory assessments to identify all affected devices within their network infrastructure and prioritize remediation efforts based on risk exposure levels. Network segmentation and access control measures should be implemented to limit communication between critical systems and external networks, reducing the attack surface available to potential adversaries. The implementation of network monitoring and intrusion detection systems can help identify suspicious network traffic patterns that may indicate exploitation attempts. Regular security audits and vulnerability assessments should be conducted to ensure ongoing protection against similar vulnerabilities in other networked devices. Device hardening practices including disabling unnecessary network services, implementing strong authentication mechanisms, and maintaining up-to-date security patches should be enforced across all affected systems. Organizations should also develop incident response procedures specifically addressing potential exploitation of this vulnerability, including protocols for device isolation, forensic analysis, and recovery operations. The remediation process should involve thorough testing of firmware updates in controlled environments before deployment to production systems to ensure compatibility and prevent operational disruptions. Additionally, network administrators should consider implementing network access controls and firewall rules to restrict access to the specific ports and protocols used by the vulnerable device, further reducing the risk of exploitation.