CVE-2023-28973: Junos OS Evolved: The 'sysmanctl' shell command allows a local user to gain access to some administrative actions
First published: Mon Apr 17 2023(Updated: )
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.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper Networks Junos OS Evolved | <20.4 | |
| Juniper Networks Junos OS Evolved | =20.4 | |
| Juniper Networks Junos OS Evolved | =20.4-r1 | |
| Juniper Networks Junos OS Evolved | =20.4-r1-s1 | |
| Juniper Networks Junos OS Evolved | =20.4-r1-s2 | |
| Juniper Networks Junos OS Evolved | =20.4-r2 | |
| Juniper Networks Junos OS Evolved | =20.4-r2-s1 | |
| Juniper Networks Junos OS Evolved | =20.4-r2-s2 | |
| Juniper Networks Junos OS Evolved | =20.4-r2-s3 | |
| Juniper Networks Junos OS Evolved | =20.4-r3 | |
| Juniper Networks Junos OS Evolved | =20.4-r3-s1 | |
| Juniper Networks Junos OS Evolved | =20.4-r3-s2 | |
| Juniper Networks Junos OS Evolved | =20.4-r3-s3 | |
| Juniper Networks Junos OS Evolved | =20.4-r3-s4 | |
| Juniper Networks Junos OS Evolved | =21.1 | |
| Juniper Networks Junos OS Evolved | =21.1-r1 | |
| Juniper Networks Junos OS Evolved | =21.1-r1-s1 | |
| Juniper Networks Junos OS Evolved | =21.1-r2 | |
| Juniper Networks Junos OS Evolved | =21.1-r3 | |
| Juniper Networks Junos OS Evolved | =21.1-r3-s1 | |
| Juniper Networks Junos OS Evolved | =21.1-r3-s2 | |
| Juniper Networks Junos OS Evolved | =21.1-r3-s3 | |
| Juniper Networks Junos OS Evolved | =21.2 | |
| Juniper Networks Junos OS Evolved | =21.2-r1 | |
| Juniper Networks Junos OS Evolved | =21.2-r1-s1 | |
| Juniper Networks Junos OS Evolved | =21.2-r1-s2 | |
| Juniper Networks Junos OS Evolved | =21.2-r2 | |
| Juniper Networks Junos OS Evolved | =21.2-r2-s1 | |
| Juniper Networks Junos OS Evolved | =21.2-r2-s2 | |
| Juniper Networks Junos OS Evolved | =21.3 | |
| Juniper Networks Junos OS Evolved | =21.3-r1 | |
| Juniper Networks Junos OS Evolved | =21.3-r1-s1 | |
| Juniper Networks Junos OS Evolved | =21.4 | |
| Juniper Networks Junos OS Evolved | =21.4-r1 | |
| Juniper Networks Junos OS Evolved | =21.4-r1-s1 |
Remedy
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.
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Reference Links
Frequently Asked Questions
What is CVE-2023-28973?
CVE-2023-28973 is an Improper Authorization vulnerability in the sysmanctl shell command of Juniper Networks Junos OS Evolved.
How does CVE-2023-28973 affect Juniper Junos OS Evolved?
CVE-2023-28973 allows a local, authenticated attacker to execute administrative commands that could impact the integrity of the system or system availability.
What is the severity of CVE-2023-28973?
CVE-2023-28973 has a severity level of 7.1 (high).
How can I fix CVE-2023-28973?
To fix CVE-2023-28973, apply the necessary security patches provided by Juniper Networks Junos OS Evolved.
Where can I find more information about CVE-2023-28973?
More information about CVE-2023-28973 can be found on the Juniper Networks support portal: https://supportportal.juniper.net/JSA70597
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