What is CVE-2020-1666?

CVE-2020-1666 is a medium-severity vulnerability in Juniper Junos OS Evolved, classified under Improper Access Control. CVSS score: 6.6/10. Published 2020-10-16.

How severe is CVE-2020-1666?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Vulnerability in Juniper Junos OS Evolved

CVE-2020-1666

The system console configuration option 'log-out-on-disconnect' In Juniper Networks Junos OS Evolved fails to log out an active CLI session when the console cable is disconnected. This could allow a malicious attacker with physical access to the console the ability to resume a previous interactive session and possibly gain administrative privileges. This issue affects all Juniper Networks Junos OS Evolved versions after 18.4R1-EVO, prior to 20.2R1-EVO.

EPSS: 0.003 (25.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Juniper Junos_os_evolved — versions 19.2, 19.3, 19.4
Juniper Networks Junos Os Evolved — versions unspecified

Weakness classification (CWE)

References

sirt@juniper.net (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2020-1666?: CVE-2020-1666 is a medium-severity vulnerability in Juniper Junos OS Evolved, classified under Improper Access Control. CVSS score: 6.6/10. Published 2020-10-16.
How severe is CVE-2020-1666?: Medium severity. CVSS v3 base score is 6.6 out of 10.