#VU56427 OS Command Injection in Cisco IOS XR - CVE-2021-34722
Published: September 9, 2021
Vulnerability identifier: #VU56427
Vulnerability risk: Medium
CVSSv4.0: 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:Green
CVE-ID: CVE-2021-34722
CWE-ID: CWE-78
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco IOS XR
Cisco IOS XR
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper input validation in the CLI of Cisco IOS XR Software. A local user can execute arbitrary OS commands on the system with root privileges.
Remediation
Install updates from vendor's website.