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HIGH

Junos OS: Insecure management daemon (MGD) configuration may allow local privilege escalation

Published Oct 9, 2019

Description

The management daemon (MGD) is responsible for all configuration and management operations in Junos OS. The Junos CLI communicates with MGD over an internal unix-domain socket and is granted special permission to open this protected mode socket. Due to a misconfiguration of the internal socket, a local, authenticated user may be able to exploit this vulnerability to gain administrative privileges. This issue only affects Linux-based platforms. FreeBSD-based platforms are unaffected by this vulnerability. Exploitation of this vulnerability requires Junos shell access. This issue cannot be exploited from the Junos CLI. This issue affects Juniper Networks Junos OS: 15.1X49 versions prior to 15.1X49-D171, 15.1X49-D180; 15.1X53 versions prior to 15.1X53-D496, 15.1X53-D69; 16.1 versions prior to 16.1R7-S4; 16.2 versions prior to 16.2R2-S9; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R2-S7, 17.2R3-S1; 17.3 versions prior to 17.3R3-S4; 17.4 versions prior to 17.4R1-S6, 17.4R1-S7, 17.4R2-S3, 17.4R3; 18.1 versions prior to 18.1R2-S4, 18.1R3-S4; 18.2 versions prior to 18.2R1-S5, 18.2R2-S2, 18.2R3; 18.3 versions prior to 18.3R1-S3, 18.3R2; 18.4 versions prior to 18.4R1-S2, 18.4R2.

Affected products

Remediation

Vendor solution

The following software releases have been updated to resolve this specific issue: 15.1X49-D171, 15.1X49-D180, 15.1X53-D496, 15.1X53-D69, 16.1R7-S4, 16.2R2-S9, 17.1R3, 17.2R1-S8, 17.2R2-S7, 17.2R3-S1, 17.3R3-S4, 17.4R1-S6, 17.4R1-S7, 17.4R2-S3, 17.4R3, 18.1R2-S4, 18.1R3-S4, 18.2R1-S5, 18.2R2-S2, 18.2R3, 18.3R1-S3, 18.3R2, 18.4R1-S2, 18.4R2, 19.1R1, and all subsequent releases.

Weaknesses (1)

References (2)

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED
Assigner juniper
Published Oct 9, 2019
Updated Sep 17, 2024
Reserved Oct 11, 2018

CISA Vulnrichment

No data

NVD

Status Modified
Modified Jun 17, 2026

Red Hat

No data

ENISA EUVD

Assigner juniper
Published Oct 9, 2019
Updated Sep 17, 2024

GitHub

No data