Permissions, Privileges, and Access Controls in Junos OS - CVE-2023-28972
Published: April 17, 2023
Vulnerability identifier: #VU75153
CSH Severity: Low
CVSS v4: 7 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-28972
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an attacker to compromise the affected system.
The vulnerability exists due to improperly imposed security restrictions on the console port. When "set system ports console insecure" is enabled, root login is disallowed for Junos OS as expected. However, the root password can be changed using "set system root-authentication plain-text-password" on NFX Series systems, leading to a possible administrative bypass with physical access to the console.
Affected software
Junos OS
How to mitigate CVE-2023-28972
Install updates from vendor's website.
Junos OS - addressed in versions 19.2R3-S7, 19.3R3-S8, 19.4R3-S12, 20.4R3-S7, 21.1R3-S5, 21.2R3-S4, 21.3R3-S3, 21.4R3-S2, 22.1R3-S1, 22.2R2-S1, 22.2R3, 22.3R1-S2, 22.3R2, 22.4R1