CVE-2022-22239: Junos OS Evolved: The ssh CLI command always runs as root which can lead to privilege escalation
First published: Wed Oct 12 2022(Updated: )
An Execution with Unnecessary Privileges vulnerability in Management Daemon (mgd) of Juniper Networks Junos OS Evolved allows a locally authenticated attacker with low privileges to escalate their privileges on the device and potentially remote systems. This vulnerability allows a locally authenticated attacker with access to the ssh operational command to escalate their privileges on the system to root, or if there is user interaction on the local device to potentially escalate privileges on a remote system to root. This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S5-EVO; 21.1-EVO versions prior to 21.1R3-EVO; 21.2-EVO versions prior to 21.2R2-S1-EVO, 21.2R3-EVO; 21.3-EVO versions prior to 21.3R2-EVO. This issue does not affect Juniper Networks Junos OS.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper Junos Os Evolved | <20.4 | |
| Juniper Junos Os Evolved | =20.4 | |
| Juniper Junos Os Evolved | =20.4-r1 | |
| Juniper Junos Os Evolved | =20.4-r1-s1 | |
| Juniper Junos Os Evolved | =20.4-r1-s2 | |
| Juniper Junos Os Evolved | =20.4-r2 | |
| Juniper Junos Os Evolved | =20.4-r2-s1 | |
| Juniper Junos Os Evolved | =20.4-r2-s2 | |
| Juniper Junos Os Evolved | =20.4-r2-s3 | |
| Juniper Junos Os Evolved | =20.4-r3 | |
| Juniper Junos Os Evolved | =20.4-r3-s1 | |
| Juniper Junos Os Evolved | =20.4-r3-s2 | |
| Juniper Junos Os Evolved | =20.4-r3-s3 | |
| Juniper Junos Os Evolved | =20.4-r3-s4 | |
| Juniper Junos Os Evolved | =21.1 | |
| Juniper Junos Os Evolved | =21.1-r1 | |
| Juniper Junos Os Evolved | =21.1-r1-s1 | |
| Juniper Junos Os Evolved | =21.1-r2 | |
| Juniper Junos Os Evolved | =21.2 | |
| Juniper Junos Os Evolved | =21.2-r1 | |
| Juniper Junos Os Evolved | =21.2-r1-s1 | |
| Juniper Junos Os Evolved | =21.2-r1-s2 | |
| Juniper Junos Os Evolved | =21.2-r2 | |
| Juniper Junos Os Evolved | =21.3 | |
| Juniper Junos Os Evolved | =21.3-r1 | |
| Juniper Junos Os Evolved | =21.3-r1-s1 |
Remedy
The following software releases have been updated to resolve this specific issue: 20.4R3-S5-EVO, 21.1R3-EVO, 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and all subsequent releases.
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Reference Links
Frequently Asked Questions
What is CVE-2022-22239?
CVE-2022-22239 is an Execution with Unnecessary Privileges vulnerability in the Management Daemon (mgd) of Juniper Networks Junos OS Evolved.
How does CVE-2022-22239 affect Juniper Junos OS Evolved?
CVE-2022-22239 allows a locally authenticated attacker with low privileges to escalate their privileges on the device and potentially remote systems.
What is the severity of CVE-2022-22239?
The severity of CVE-2022-22239 is high with a CVSS score of 8.8.
How can I fix CVE-2022-22239?
To fix CVE-2022-22239, it is recommended to update to the latest version of Juniper Junos OS Evolved.
Where can I find more information about CVE-2022-22239?
More information about CVE-2022-22239 can be found in the Juniper Networks Security Advisory - JSA69895.
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