CVE-2018-14768 in FD8
Summary
by MITRE
Various VIVOTEK FD8*, FD9*, FE9*, IB8*, IB9*, IP9*, IZ9*, MS9*, SD9*, and other devices before XXXXXX-VVTK-xx06a allow remote attackers to execute arbitrary code.
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Analysis
by VulDB Data Team • 03/19/2020
The vulnerability identified as CVE-2018-14768 affects a range of VIVOTEK network video surveillance devices including FD8, FD9, FE9, IB8, IB9, IP9, IZ9, MS9, SD9* and related models. This critical security flaw represents a remote code execution vulnerability that enables unauthorized attackers to gain complete control over affected devices without requiring authentication. The vulnerability stems from inadequate input validation and insufficient sanitization of user-supplied data within the device's web interface and network protocols.
The technical implementation of this vulnerability involves improper handling of specially crafted input parameters that are processed by the device's firmware. Attackers can exploit this weakness by sending malicious payloads through network connections to the affected devices, potentially leveraging buffer overflow conditions or injection flaws in the processing of HTTP requests, command parameters, or configuration data. The vulnerability allows for arbitrary code execution at the privilege level of the affected device, which typically operates with root or administrator privileges, enabling attackers to install malware, modify device configurations, or establish persistent backdoors.
From an operational perspective, this vulnerability presents significant risk to organizations relying on VIVOTEK surveillance equipment for security operations. The remote nature of the exploit means that attackers can target devices from anywhere on the internet without requiring physical access or network proximity. This capability enables large-scale attacks against multiple devices simultaneously, potentially compromising entire surveillance networks across different geographical locations. The impact extends beyond individual device compromise to include potential data exfiltration, network reconnaissance, and disruption of security operations that depend on these surveillance systems.
Security professionals should note that this vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and represents a classic example of command injection or code execution flaws. The ATT&CK framework categorizes this as a remote code execution technique that can be leveraged for initial access and privilege escalation within target networks. Organizations should implement immediate mitigations including firmware updates from VIVOTEK, network segmentation to isolate affected devices, and monitoring for suspicious network traffic patterns. Additionally, implementing network access controls and disabling unnecessary network services can reduce the attack surface and limit the potential impact of exploitation attempts.