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Rewterz Threat Advisory – CVE-2021-34746 – Cisco Enterprise NFV Infrastructure Software Authentication Bypass Vulnerability

Severity

High

Analysis Summary

CVE-2021-34746

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.

Impact

  • Bypass Security
  • Unauthorized Access

Affected Vendors

Cisco

Affected Products

  • Cisco Enterprise NFVIS Release 4.5.1

Remediation

Refer to Cisco Security Advisory for the patch, upgrade,, or suggested workaround information.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-g2DMVVh