Vulnerability Details : 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.
Vulnerability category: BypassGain privilege
Products affected by CVE-2020-1666
- cpe:2.3:o:juniper:junos_os_evolved:19.2:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos_os_evolved:19.2:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos_os_evolved:19.3:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos_os_evolved:20.1:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos_os_evolved:19.4:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos_os_evolved:19.4:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos_os_evolved:19.4:r2-s1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-1666
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-1666
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST | |
|
6.6
|
MEDIUM | CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
0.7
|
5.9
|
Juniper Networks, Inc. |
CWE ids for CVE-2020-1666
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: sirt@juniper.net (Secondary)
-
According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-1666
-
https://kb.juniper.net/JSA11063
2020-10 Security Bulletin: Junos OS Evolved: 'console log-out-on-disconnect' fails to terminate session on console cable disconnection (CVE-2020-1666) - Juniper NetworksVendor Advisory
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