Incorrect Privilege Assignment in Cisco IOS XE - CVE-2022-20855
Published: September 29, 2022
Vulnerability identifier: #VU67729
CSH Severity: Low
CVSS v4: 8.4 [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]
CVE-ID: CVE-2022-20855
CWE-ID: CWE-266
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper checks throughout the restart of certain system processes within the self-healing functionality. A local administrator can execute arbitrary commands on the underlying OS as root.
Affected software
Cisco IOS XE
How to mitigate CVE-2022-20855
Install updates from vendor's website.
Cisco IOS XE - addressed in versions 16.12.7, 16.12.8, 17.3.1z, 17.3.3, 17.3.3a, 17.3.4, 17.3.4 b, 17.3.5, 17.3.5a, 17.3.5b, 17.3.6, 17.4.1, 17.4.1c, 17.4.2, 17.5.1, 17.5.1a, 17.6.1, 17.6.1w, 17.6.1z, 17.6.2, 17.6.3, 17.6.3a, 17.6.4, 17.7.1, 17.7.1b, 17.7.2, 17.8.1, 17.8.1a, 17.9.1, 17.9.1a