CVE-2020-8157

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

UniFi Cloud Key firmware <= v1.1.10 for Cloud Key gen2 and Cloud Key gen2 Plus contains a vulnerability that allows unrestricted root access through the serial interface (UART).

References

https://community.ui.com/releases/Security-advisory-bulletin-008-008/5f66ca4c-10d6-4ca5-9620-37d5a4f22413

https://community.ui.com/releases/UniFi-Cloud-Key-Firmware-1-1-11/a24e55e1-6d90-46d7-92e2-01539ec8c79d

Details

Source: MITRE

Published: 2020-05-02

Updated: 2020-05-07

Risk Information

CVSS v2

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 6.8

Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 0.9

Severity: MEDIUM

Vulnerable Software

Configuration 1

AND

OR

cpe:2.3:o:ui:unifi_cloud_key_gen2_firmware:*:*:*:*:*:*:*:*

OR

cpe:2.3:h:ui:unifi_cloud_key_gen2:-:*:*:*:*:*:*:*

Configuration 2

AND

OR

cpe:2.3:o:ui:unifi_cloud_key_gen2_plus_firmware:*:*:*:*:*:*:*:*

OR

cpe:2.3:h:ui:unifi_cloud_key_gen2_plus:-:*:*:*:*:*:*:*