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CVE-2018-14494: Vivotek Fd8136 Firmware: Command injection

CVE-2018-14494 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists Vivotek Fd8136 Firmware as the affected product. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

Vivotek FD8136 devices allow Remote Command Injection, related to BusyBox and wget. NOTE: the vendor sent a clarification on 2019-09-17 explaining that, although this CVE was first populated in July 2019, it is a historical vulnerability that does not apply to any current or recent Vivotek hardware or firmware

Severity breakdown

CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
  • Attack complexity: Low. No special conditions; the attack can be repeated reliably.
  • Privileges required: None. No account or prior access is needed.
  • User interaction: None. No action from any user is needed.
  • Scope: Unchanged. Impact stays within the vulnerable component.
  • Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
  • Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
  • Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-78: Improper Neutralization of Special Elements used in an OS Command

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command before it is sent to a downstream component.

Affected products

  • Vivotek Fd8136 Firmware: 0301a

References