Improper Authentication in Enterprise NFV Infrastructure Software - CVE-2021-34746
Published: September 2, 2021
Vulnerability identifier: #VU56260
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-34746
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Enterprise NFV Infrastructure Software
Enterprise NFV Infrastructure Software
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in when processing authentication requests in the TACACS+ authentication, authorization and accounting (AAA) feature. A remote attacker can inject parameters into an authentication request, bypass authentication and log in as an administrator to the affected device.
How to mitigate CVE-2021-34746
Install updates from vendor's website.