9.3
CVSSv2

CVE-2021-34746

Published: 02/09/2021 Updated: 07/11/2023
CVSS v2 Base Score: 9.3 | Impact Score: 10 | Exploitability Score: 8.6
CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9
VMScore: 828
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Summary

A vulnerability in the TACACS+ authentication, authorization and accounting (AAA) feature of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an unauthenticated, remote malicious user 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 malicious user to bypass authentication and log in as an administrator to the affected device.

Vulnerability Trend

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Vendor Advisories

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 tha ...

Recent Articles

Emails, chat logs, more leaked online from far-right militia linked to US Capitol riot
The Register • Iain Thomson in San Francisco • 28 Sep 2021

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In brief Emails, chat logs, membership records, donor lists and other files siphoned from a far-right anti-government self-styled militia were leaked online on Monday, it appears. Some 5GB of data belonging to the Oath Keepers ‒ at least four of whom have been indicted for and admitted their role in the January 6 storming of the US capitol – was passed to the DDoSecrets Collective and shared online. The membership list contains accounts with 160 US government and military email addresses, th...