What is CVE-2019-1767?

CVE-2019-1767 is a vulnerability in the implementation of a specific CLI command for Cisco NX-OS Software that could allow an attacker to cause a buffer overflow condition or perform command injection.

How severe is CVE-2019-1767?

CVE-2019-1767 has a severity score of 6.7, which is considered high.

Which software is affected by CVE-2019-1767?

Cisco NX-OS Software versions up to 8.3(1) are affected by CVE-2019-1767.

How can an attacker exploit CVE-2019-1767?

An authenticated, local attacker with administrator credentials can exploit CVE-2019-1767 to execute arbitrary commands with elevated privileges.

Where can I find more information about CVE-2019-1767?

You can find more information about CVE-2019-1767 on the SecurityFocus website and the Cisco Security Advisory.

Vulnerability/
CVE-2019-1767

high

7.2

CWE

78 119 77

15/5/2019

16/10/2020

CVE-2019-1767: OS Command Injection

First published: Wed May 15 2019(Updated: )

A vulnerability in the implementation of a specific CLI command for Cisco NX-OS Software could allow an authenticated, local attacker with administrator credentials to cause a buffer overflow condition or perform command injection. This could allow the attacker to execute arbitrary commands with elevated privileges on the underlying operating system of an affected device. The vulnerability is due to insufficient validation of arguments passed to a certain CLI command. An attacker could exploit this vulnerability by including malicious input as the argument of the affected CLI command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with root privileges. An attacker would need valid administrator credentials to exploit these vulnerabilities. NX-OS versions prior to 8.3(1) are affected.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Nx-os	<8.3\(1\)
Cisco Nexus 3016
Cisco Nexus 3048
Cisco Nexus 3064
Cisco Nexus 3064-t
Cisco Nexus 31108pc-v
Cisco Nexus 31108tc-v
Cisco Nexus 31128pq
Cisco Nexus 3132c-z
Cisco Nexus 3132q
Cisco Nexus 3132q-v
Cisco Nexus 3132q-xl
Cisco Nexus 3164q
Cisco Nexus 3172
Cisco Nexus 3172pq-xl
Cisco Nexus 3172tq
Cisco Nexus 3172tq-32t
Cisco Nexus 3172tq-xl
Cisco Nexus 3232c
Cisco Nexus 3264c-e
Cisco Nexus 3264q
Cisco Nexus 3408-s
Cisco Nexus 34180yc
Cisco Nexus 3432d-s
Cisco Nexus 3464c
Cisco Nexus 3524
Cisco Nexus 3524-x
Cisco Nexus 3524-xl
Cisco Nexus 3548
Cisco Nexus 3548-x
Cisco Nexus 3548-xl
Cisco Nexus 36180yc-r
Cisco Nexus 3636c-r
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-fx
Cisco Nexus 93120tx
Cisco Nexus 93128tx
Cisco Nexus 93180lc-ex
Cisco Nexus 93180yc-ex
Cisco Nexus 93180yc-fx
Cisco Nexus 93216tc-fx2
Cisco Nexus 93240yc-fx2
Cisco Nexus 9332c
Cisco Nexus 9332pq
Cisco Nexus 93360yc-fx2
Cisco Nexus 9336c-fx2
Cisco Nexus 9336pq Aci Spine
Cisco Nexus 9348gc-fxp
Cisco Nexus 9364c
Cisco Nexus 9372px
Cisco Nexus 9372px-e
Cisco Nexus 9372tx
Cisco Nexus 9372tx-e
Cisco Nexus 9396px
Cisco Nexus 9396tx
Cisco Nexus 9504
Cisco Nexus 9508
Cisco Nexus 9516

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Reference Links

Frequently Asked Questions

What is CVE-2019-1767?
CVE-2019-1767 is a vulnerability in the implementation of a specific CLI command for Cisco NX-OS Software that could allow an attacker to cause a buffer overflow condition or perform command injection.
How severe is CVE-2019-1767?
CVE-2019-1767 has a severity score of 6.7, which is considered high.
Which software is affected by CVE-2019-1767?
Cisco NX-OS Software versions up to 8.3(1) are affected by CVE-2019-1767.
How can an attacker exploit CVE-2019-1767?
An authenticated, local attacker with administrator credentials can exploit CVE-2019-1767 to execute arbitrary commands with elevated privileges.
Where can I find more information about CVE-2019-1767?
You can find more information about CVE-2019-1767 on the SecurityFocus website and the Cisco Security Advisory.