title: 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.
problem types: CWE-285 Improper Authorization
affected:
{
vendor: Juniper Networks
product: Junos OS Evolved
versions:
version: unspecified, lessThan: 20.4R3-S5-EVO, status: affected, versionType: custom
version: 21.2, status: affected, lessThan: 21.2R3-EVO, versionType: custom
version: 21.3, status: affected, lessThan: 21.3R2-EVO, versionType: custom
version: 21.4, status: affected, lessThan: 21.4R1-S2-EVO, 21.4R2-EVO, versionType: custom
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: HIGH
baseScore: 7.1
baseSeverity: HIGH
]
exploits: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
solutions: 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.
workarounds: Limit access to the Junos shell through the use of command authorization to only trusted system administrators.