CVE-2021-34746 CRITICAL

CVE-2021-34746: Cisco Enterprise NFV Infrastructure Software Authentication Bypass Vulnerability

Vendor Cisco
Product Cisco Enterprise NFV Infrastructure Software
Weakness CWE-289
Published September 2, 2021
Last update November 7, 2024

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

A vulnerability in the TACACS+ authentication, authorization and accounting (AAA) feature of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an unauthenticated, remote attacker to bypass authentication and log in to an affected device as an administrator. This vulnerability is due to incomplete validation of user-supplied input that is passed to an authentication script. An attacker could exploit this vulnerability by injecting parameters into an authentication request. A successful exploit could allow the attacker to bypass authentication and log in as an administrator to the affected device.

Key dates

02Disclosure timeline

September 2, 2021 CVE published
November 7, 2024 Record updated