Junos OS: EX and QFX Series: Console port authentication bypass vulnerability
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.
Problem Types
| Type | CWE ID | Description |
|---|
| CWE | CWE-288 | CWE-288 Authentication Bypass Using an Alternate Path or Channel |
Type: CWE
Description: CWE-288 Authentication Bypass Using an Alternate Path or Channel
Metrics
| Version | Base score | Base severity | Vector |
|---|
| 3.1 | 6.3 | MEDIUM | CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
Version: 3.1
Base score: 6.3
Base severity: MEDIUM
Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H