CVE-2014-1997 in CN8000
Summary
by MITRE
The ATEN CN8000 remote-access unit with firmware 1.6.154 and earlier allows remote attackers to cause a denial of service via unspecified vectors.
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Analysis
by VulDB Data Team • 03/10/2019
The CVE-2014-1997 vulnerability affects the ATEN CN8000 remote-access unit, a network-based device designed for remote management and access to computer systems. This particular device operates as a KVM (Keyboard, Video, Mouse) over IP solution, enabling administrators to control servers and other computing equipment from remote locations. The vulnerability specifically impacts firmware versions 1.6.154 and earlier, indicating that the issue was present in a significant portion of the device's deployment lifecycle. These remote-access units are commonly deployed in enterprise environments where system administrators need to manage multiple servers from centralized locations, making them critical infrastructure components that require robust security measures.
The technical flaw in the ATEN CN8000 lies in its handling of unspecified vectors that lead to denial of service conditions. While the exact nature of these vectors remains unspecified in the CVE description, such vulnerabilities typically stem from improper input validation, memory management issues, or protocol handling errors within the device's firmware. The device's remote accessibility makes it particularly susceptible to attacks that can be executed without physical access, as the vulnerability exists within the network-facing components of the system. This type of vulnerability falls under the category of remote code execution and denial of service attacks that can be exploited by malicious actors to disrupt service availability. The lack of specific vector details in the original description suggests either limited information was available at the time of disclosure or the vulnerability manifests through multiple attack paths that share common underlying causes.
The operational impact of this vulnerability extends beyond simple service disruption, as it can severely compromise the availability of critical system management functions. In enterprise environments, the ATEN CN8000 serves as a gateway for administrators to access and manage server infrastructure, particularly in data centers where physical access is limited or impractical. When exploited, this vulnerability can render the remote access unit completely non-functional, forcing administrators to rely on physical console access or alternative management methods. The attack surface for such devices is particularly concerning because they often operate with elevated privileges and may be exposed to untrusted network environments. The vulnerability's potential for remote exploitation means that attackers can disrupt service availability without requiring physical access to the premises, making it a significant threat to operational continuity and business availability.
Mitigation strategies for CVE-2014-1997 should focus on immediate firmware updates to versions that address the denial of service conditions. Organizations should implement network segmentation to limit access to these devices, ensuring that only authorized personnel can reach the management interfaces. The implementation of network access control lists and firewall rules can help restrict connections to the device's management ports, reducing the attack surface. Additionally, monitoring network traffic for unusual patterns that might indicate exploitation attempts can provide early warning of potential attacks. Organizations should also consider implementing intrusion detection systems that can identify suspicious activities targeting these specific devices. From a compliance perspective, this vulnerability aligns with various security frameworks including the NIST Cybersecurity Framework and ISO 27001 requirements for system availability and integrity. The vulnerability demonstrates the importance of maintaining up-to-date firmware and conducting regular security assessments of network infrastructure components, particularly those with remote management capabilities. The ATT&CK framework would categorize this vulnerability under the T1499 category for network denial of service, with potential lateral movement opportunities if the device serves as a gateway to other systems within the network infrastructure.