CVE-2014-8385 in EKI-1200 Gateway
Summary
by MITRE
Buffer overflow on Advantech EKI-1200 gateways with firmware before 1.63 allows remote attackers to execute arbitrary code via unspecified vectors.
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Analysis
by VulDB Data Team • 04/11/2018
The vulnerability identified as CVE-2014-8385 represents a critical buffer overflow flaw affecting Advantech EKI-1200 industrial gateway devices running firmware versions prior to 1.63. This issue resides within the network communication handling mechanisms of these industrial control devices, which are commonly deployed in critical infrastructure environments including manufacturing facilities, power grids, and water treatment plants. The buffer overflow vulnerability stems from inadequate input validation and memory management practices within the gateway's firmware implementation, creating an exploitable condition that can be leveraged by remote attackers to gain unauthorized control over the affected devices.
The technical nature of this vulnerability falls under CWE-121, which categorizes buffer overflow conditions where insufficient bounds checking allows attackers to write beyond allocated memory buffers. In the context of industrial gateways like the EKI-1200, this flaw manifests when the device processes network packets or configuration data that exceeds predetermined buffer limits. The unspecified vectors mentioned in the description suggest that the vulnerability could be triggered through multiple attack surfaces including network protocols, web interfaces, or management services that the gateway exposes to external networks. Attackers can craft malicious payloads that, when processed by the vulnerable firmware, cause the program to overwrite adjacent memory locations, potentially leading to arbitrary code execution.
The operational impact of this vulnerability extends far beyond simple remote code execution, as industrial gateways serve as critical communication bridges between operational technology networks and enterprise IT systems. When compromised, these devices can provide attackers with persistent access points into industrial control networks, enabling lateral movement and potentially facilitating more sophisticated attacks such as those documented in the MITRE ATT&CK framework under the T1071.004 technique for application layer protocol tunneling. The remote exploitation capability means that attackers do not require physical access to the device, making the attack surface significantly larger and more dangerous in industrial environments where security perimeters may be less strictly enforced.
Organizations deploying Advantech EKI-1200 gateways must implement immediate remediation strategies including firmware updates to version 1.63 or later, which contain the necessary memory boundary checks and input validation fixes. Network segmentation should be enforced to limit exposure of these devices to untrusted networks, while monitoring systems should be deployed to detect anomalous network traffic patterns that might indicate exploitation attempts. The vulnerability underscores the importance of maintaining up-to-date firmware in industrial environments, as highlighted by NIST guidelines for industrial control systems security. Additionally, implementing network access controls through firewalls and intrusion detection systems can provide additional layers of defense against remote exploitation attempts targeting these industrial communication devices.