CVE-2020-1666 - Insufficient Session Expiration

Severity

65%

Complexity

6%

Confidentiality

98%

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.

CVSS 3.1 Base Score 6.6. CVSS Attack Vector: physical. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 7.2. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C).

Demo Examples

Insufficient Session Expiration

CWE-613

The following snippet was taken from a J2EE web.xml deployment descriptor in which the session-timeout parameter is explicitly defined (the default value depends on the container). In this case the value is set to -1, which means that a session will never expire.


               
</web-app>
</session-config>
<session-timeout>-1</session-timeout>

Overview

Type

Juniper JUNOS Evolved

First reported 4 years ago

2020-10-16 21:15:00

Last updated 4 years ago

2020-10-27 18:47:00

Affected Software

Juniper JUNOS Evolved 19.2 R1

19.2

Juniper JUNOS Evolved 19.3 R2

19.3

Juniper JUNOS Evolved 19.4 R1

19.4

Juniper JUNOS Evolved 19.4 R2

19.4

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