HIGH

CVE-2018-20219

CVSS v3

8.1

HIGH

EPSS Score

42.9%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below. After successful authentication, the device sends an authentication cookie to the end user such that they can access the devices web administration panel. This token is hard-coded to a string in the source code (/usr/share/www/check.lp file). By setting this cookie in a browser, an attacker is able to maintain access to every ENC-400 device without knowing the password, which results in authentication bypass. Even if a user changes the password on the device, this token is static and unchanged.

Technical details

Published
3/21/2019

Frequently asked questions

What is CVE-2018-20219?

An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below. After successful authentication, the device sends an authentication cookie to the end user such that they can access the devices web administration panel. This token is hard-coded to a string in the source code (/usr/share/www/check.lp file). By setting this cookie in a browser, an attacker is able to maintain access to every ENC-400 device without knowing the password, which results in authentication bypass. Even if a user changes the password on the device, this token is static and unchanged.

Is CVE-2018-20219 actively exploited?

Active exploitation of CVE-2018-20219 has not been confirmed. The EPSS score is 42.9%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-20219?

CVE-2018-20219 has a CVSS v3 base score of 8.1 (HIGH severity).

Is CVE-2018-20219 affecting your environment?

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