CVE-2021-1584: Cisco Nexus 9000 Series Fabric Switches ACI Mode Privilege Escalation Vulnerability

Published Aug 25, 2021

Updated

A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient restrictions during the execution of a specific CLI command. An attacker with administrative privileges could exploit this vulnerability by performing a command injection attack on the vulnerable command. A successful exploit could allow the attacker to access the underlying operating system as root.

Affected Software

42 affected components

Cisco NX-OS=14.2\(7f\)

Cisco Nexus 9000

Cisco Nexus 9000v

Cisco Nexus 92160yc-x

Cisco Nexus 92300yc

Cisco Nexus 92304qc

Cisco Nexus 92348gc-x

Cisco Nexus 9236c

Cisco Nexus 9272q

Cisco Nexus 93108tc-ex

Cisco Nexus 93108tc-ex-24

Cisco Nexus 93108tc-fx

Cisco Nexus 93108tc-fx-24

Cisco Nexus 93108tc-fx3p

Cisco Nexus 93120tx

Cisco Nexus 93128tx

Cisco Nexus 9316d-gx

Cisco Nexus 93180lc-ex

Cisco Nexus 93180yc-ex

Cisco Nexus 93180yc-ex-24

Cisco Nexus 93180yc-fx

Cisco Nexus 93180yc-fx-24

Cisco Nexus 93180yc-fx3

Cisco Nexus 93180yc-fx3s

Cisco Nexus 93216tc-fx2

Cisco Nexus 93240yc-fx2

Cisco Nexus 9332c

Cisco Nexus 9332pq

Cisco Nexus 93360yc-fx2

Cisco Nexus 9336c-fx2

Cisco Nexus 9336c-fx2-e

Cisco Nexus 9348gc-fxp

Cisco Nexus 93600cd-gx

Cisco Nexus 9364c

Cisco Nexus 9364c-gx

Cisco Nexus 9372px

Cisco Nexus 9372px-e

Cisco Nexus 9372tx

Cisco Nexus 9372tx-e

Cisco Nexus 9396px

Cisco Nexus 9396tx

Cisco Nexus 9508

Remediation

Patch Available

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-naci-mdvul-vrKVgNU

Event History

Aug 25, 2021

CVE Published

via MITRE·07:10 PM

Data Sourced

via MITRE·07:10 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is CVE-2021-1584?

CVE-2021-1584 is a vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode that allows an authenticated, local attacker to elevate privileges on an affected device.

What is the severity of CVE-2021-1584?

CVE-2021-1584 has a severity of 6.7 (high).

Which software versions are affected by CVE-2021-1584?

Cisco Nx-os version 14.2(7f) is affected by CVE-2021-1584.

How can I fix CVE-2021-1584?

Update to a fixed version of Cisco Nx-os.

Where can I find more information about CVE-2021-1584?

You can find more information about CVE-2021-1584 on the Cisco Security Advisory page.