title: Junos: Privilege escalation vulnerabilities in Junos CLI
description: Certain combinations of Junos OS CLI commands and arguments have been found to be exploitable in a way that can allow unauthorized access to the operating system. This may allow any user with permissions to run these CLI commands the ability to achieve elevated privileges and gain complete control of the device. Affected releases are Juniper Networks Junos OS 11.4 prior to 11.4R13-S3; 12.1X46 prior to 12.1X46-D60; 12.1X47 prior to 12.1X47-D45; 12.3 prior to 12.3R12; 12.3X48 prior to 12.3X48-D35; 13.2 prior to 13.2R9; 13.3 prior to 13.3R4-S11, 13.3R9; 14.1 prior to 14.1R4-S12, 14.1R7; 14.1X53 prior to 14.1X53-D28, 14.1X53-D40; 14.1X55 prior to 14.1X55-D35; 14.2 prior to 14.2R3-S10, 14.2R4-S7, 14.2R5; 15.1 prior to 15.1F4, 15.1R3; 15.1X49 prior to 15.1X49-D60; 15.1X53 prior to 15.1X53-D57, 15.1X53-D70.
problem types: Privilege escalation
affected:
{
product: Junos OS
vendor: Juniper Networks
versions:
status: affected, version: 11.4 prior to 11.4R13-S3
status: affected, version: 12.1X46 prior to 12.1X46-D60
status: affected, version: 12.1X47 prior to 12.1X47-D45
status: affected, version: 12.3 prior to 12.3R12
status: affected, version: 12.3X48 prior to 12.3X48-D35
status: affected, version: 13.2 prior to 13.2R9
status: affected, version: 13.3 prior to 13.3R4-S11, 13.3R9
status: affected, version: 14.1 prior to 14.1R4-S12, 14.1R7
status: affected, version: 14.1X53 prior to 14.1X53-D28, 14.1X53-D40
status: affected, version: 14.1X55 prior to 14.1X55-D35
status: affected, version: 14.2 prior to 14.2R3-S10, 14.2R4-S7, 14.2R5
status: affected, version: 15.1 prior to 15.1F4, 15.1R3
status: affected, version: 15.1X49 prior to 15.1X49-D60
status: affected, version: 15.1X53 prior to 15.1X53-D57, 15.1X53-D70
}
metrics:
cvssV3_0: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 8.4
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.0
]
workarounds: Use access lists or firewall filters to limit access to the router's CLI only from trusted hosts. Restrict access to the CLI to only highly trusted administrators.