CVE-2020-1618

Junos OS: EX and QFX Series: Console port authentication bypass vulnerability

State: Published
Severity: 6.3 Medium
Published: Apr 8, 2020
Updated: Sep 17, 2024
Reserved: Nov 4, 2019

Description

On Juniper Networks EX and QFX Series, an authentication bypass vulnerability may allow a user connected to the console port to login as root without any password. This issue might only occur in certain scenarios: • At the first reboot after performing device factory reset using the command “request system zeroize”; or • A temporary moment during the first reboot after the software upgrade when the device configured in Virtual Chassis mode. This issue affects Juniper Networks Junos OS on EX and QFX Series: 14.1X53 versions prior to 14.1X53-D53; 15.1 versions prior to 15.1R7-S4; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S4; 17.1 versions prior to 17.1R2-S11, 17.1R3-S1; 17.2 versions prior to 17.2R3-S3; 17.3 versions prior to 17.3R2-S5, 17.3R3-S6; 17.4 versions prior to 17.4R2-S9, 17.4R3; 18.1 versions prior to 18.1R3-S8; 18.2 versions prior to 18.2R2; 18.3 versions prior to 18.3R1-S7, 18.3R2. This issue does not affect Juniper Networks Junos OS 12.3.

Scores

CVSS	Score	Vector	Source
3.1	6.3 Medium	CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H	juniper

Weaknesses

CWE-288 Authentication Bypass Using an Alternate Path or Channel

Affected Products

Product	Versions
Junos OSJuniper Networks	12.3Not affected 14.1X53 to before 14.1X53-D53Affected 15.1 to before 15.1R7-S4Affected 15.1X53 to before 15.1X53-D593Affected 16.1 to before 16.1R7-S4Affected 17.1 to before 17.1R2-S11, 17.1R3-S1Affected 17.2 to before 17.2R3-S3Affected 17.3 to before 17.3R2-S5, 17.3R3-S6Affected 17.4 to before 17.4R2-S9, 17.4R3Affected 18.1 to before 18.1R3-S8Affected 18.2 to before 18.2R2Affected 18.3 to before 18.3R1-S7, 18.3R2Affected

Product

Versions

Junos OSJuniper Networks

12.3Not affected
14.1X53 to before 14.1X53-D53Affected
15.1 to before 15.1R7-S4Affected
15.1X53 to before 15.1X53-D593Affected
16.1 to before 16.1R7-S4Affected
17.1 to before 17.1R2-S11, 17.1R3-S1Affected
17.2 to before 17.2R3-S3Affected
17.3 to before 17.3R2-S5, 17.3R3-S6Affected
17.4 to before 17.4R2-S9, 17.4R3Affected
18.1 to before 18.1R3-S8Affected
18.2 to before 18.2R2Affected
18.3 to before 18.3R1-S7, 18.3R2Affected

References

https://kb.juniper.net/JSA11001

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.