CVE-2023-28973

Junos OS Evolved: The 'sysmanctl' shell command allows a local user to gain access to some administrative actions

Description

An Improper Authorization vulnerability in the 'sysmanctl' shell command of Juniper Networks Junos OS Evolved allows a local, authenticated attacker to execute administrative commands that could impact the integrity of the system or system availability. Administrative functions such as daemon restarting, routing engine (RE) switchover, and node shutdown can all be performed through exploitation of the 'sysmanctl' command. Access to the 'sysmanctl' command is only available from the Junos shell. Neither direct nor indirect access to 'sysmanctl' is available from the Junos CLI. This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S5-EVO; 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R2-EVO; 21.4 versions prior to 21.4R1-S2-EVO, 21.4R2-EVO.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: Junos OS Evolved 20.4R3-S5-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-S2-EVO, 21.4R2-EVO, 22.1R1-EVO, and all subsequent releases.

Workaround:

  • Limit access to the Junos shell through the use of command authorization to only trusted system administrators.

Categories

7.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS Evolved
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2023-28973?
CVE-2023-28973 has been scored as a high severity vulnerability.
How to fix CVE-2023-28973?
To fix CVE-2023-28973: The following software releases have been updated to resolve this specific issue: Junos OS Evolved 20.4R3-S5-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-S2-EVO, 21.4R2-EVO, 22.1R1-EVO, and all subsequent releases.
Is CVE-2023-28973 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-28973 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-28973?
CVE-2023-28973 affects Juniper Networks Junos OS Evolved.
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