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CVE-2023-28973

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

HIGH
7.1
CVSS Score
Published: April 17, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:49 AM UTC
2 products affected across 2 vendorsJunos OS EvolvedJunos OS Evolved

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Severity
HIGH7.1
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Junos OS Evolved· Juniper
95%
v < 20.420.420.4 r120.4 r1-s120.4 r1-s220.4 r220.4 r2-s120.4 r2-s220.4 r2-s320.4 r320.4 r3-s120.4 r3-s220.4 r3-s320.4 r3-s421.121.1 r121.1 r1-s121.1 r221.1 r321.1 r3-s121.1 r3-s221.1 r3-s321.221.2 r121.2 r1-s121.2 r1-s221.2 r221.2 r2-s121.2 r2-s221.321.3 r121.3 r1-s121.421.4 r121.4 r1-s1
Affected range stops below 20.4, so it looks safe — our inference, not a vendor statement
Junos OS Evolved· Juniper Networks
60%
v < 20.4R3-S5-EVO21.2 ≤ v < 21.2R3-EVO21.3 ≤ v < 21.3R2-EVO21.4 ≤ v < 21.4R1-S2-EVO, 21.4R2-EVO21.221.321.4
Affected range stops below 20.4R3-S5-EVO, so it looks safe — our inference, not a vendor statement
Affected range stops below 21.2R3-EVO, so it looks safe — our inference, not a vendor statement
Affected range stops below 21.3R2-EVO, so it looks safe — our inference, not a vendor statement
Affected range stops below 21.4R1-S2-EVO, 21.4R2-EVO, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://supportportal.juniper.net/JSA70597

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHjuniper
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-285CWE-287

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