#VU56260 Improper Authentication in Enterprise NFV Infrastructure Software - CVE-2021-34746

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Main Vulnerability Database Vulnerabilities #VU56260

#VU56260 Improper Authentication in Enterprise NFV Infrastructure Software - CVE-2021-34746

Published: September 2, 2021


Vulnerability identifier: #VU56260
Vulnerability risk: High
CVSSv4.0: 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
Vulnerable software:
Enterprise NFV Infrastructure Software
Software vendor:
Cisco Systems, Inc

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.


Remediation

Install updates from vendor's website.

External links