OS Command Injection in Juniper Junos OS - CVE-2021-0219
Published: January 14, 2021
Vulnerability identifier: #VU49546
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-0219
CWE-ID: CWE-78
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Juniper Junos OS
Juniper Junos OS
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in install package validation subsystem. A local user can abuse the request system software add validate-on-host CLI command and execute arbitrary OS commands with root privileges.
How to mitigate CVE-2021-0219
Install updates from vendor's website.