Improper Privilege Management in Cisco IOS XE - CVE-2020-3393
Published: September 24, 2020 / Updated: September 30, 2020
Vulnerability identifier: #VU47208
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3393
CWE-ID: CWE-269
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to gain elevated privileges on the system.
The vulnerability exists in the application-hosting subsystem due to a combination of two factors: (a) incomplete input validation of the user payload of CLI commands, and (b) improper role-based access control (RBAC) when commands are issued at the command line within the application-hosting subsystem . A local user can execute arbitrary CLI commands with root privileges.
Affected software
Cisco IOS XE
How to mitigate CVE-2020-3393
Install updates from vendor's website.
Cisco IOS XE - addressed in versions Amsterdam 17.1.2, Amsterdam 17.2.1, Gibraltar 16.12.4, 16.12.3s, 16.12.3.12, 16.12.4, 16.12.4a, 17.1.1.60, 17.1.2, 17.2.0.40, 17.2.0.46, 17.2.1