Cisco NX-OS System Software Authentication, Authorization, and Accounting Denial of Service Vulnerability Vulnerability

high Nessus Plugin ID 104177


The remote device is missing a vendor-supplied security patch.


According to its self-reported version, the Cisco NX-OS Software is affected by a vulnerability in the authentication, authorization, and accounting (AAA) implementation of NX-OS System Software that could allow an unauthenticated, remote attacker to cause an affected device to reload.


Upgrade to the relevant fixed version referenced in Cisco Security Advisory cisco-sa-20171018-aaavty or use the referenced vendor workaround.

See Also

Plugin Details

Severity: High

ID: 104177

File Name: cisco-sa-20171018-aaavty.nasl

Version: 1.17

Type: combined

Family: CISCO

Published: 10/26/2017

Updated: 11/12/2019

Risk Information


Risk Factor: Medium

Score: 4.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2017-3883


Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:nx-os

Required KB Items: Host/Cisco/NX-OS/Version, Host/Cisco/NX-OS/Model

Exploit Ease: No known exploits are available

Patch Publication Date: 10/18/2017

Vulnerability Publication Date: 10/18/2017

Reference Information

CVE: CVE-2017-3883

BID: 101493