What is CVE-2019-1769?

CVE-2019-1769 is a vulnerability in the CLI of Cisco NX-OS Software that allows an authenticated local attacker to execute arbitrary commands with root privileges.

How can an attacker exploit CVE-2019-1769?

An attacker with administrator credentials can exploit CVE-2019-1769 by sending malicious commands to the affected line card.

What is the severity of CVE-2019-1769?

CVE-2019-1769 has a severity rating of 6.7, which is considered high.

Which versions of Cisco NX-OS Software are affected by CVE-2019-1769?

Cisco NX-OS Software versions up to and including 7.0(3)i7(6) are affected by CVE-2019-1769.

How can I fix CVE-2019-1769?

To mitigate the vulnerability, Cisco recommends upgrading to a fixed software release.

Vulnerability/
CVE-2019-1769

high

7.2

CWE

15/5/2019

16/9/2024

CVE-2019-1769: Cisco NX-OS Software Line Card Command Injection Vulnerability

First published: Wed May 15 2019(Updated: )

A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker with administrator credentials to execute arbitrary commands on the underlying Linux operating system of an attached line card with the privilege level of root. The vulnerability is due to insufficient validation of arguments passed to a specific CLI command on the affected device. An attacker could exploit this vulnerability by including malicious input as the argument of an affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux operating system of an attached line card with elevated privileges. An attacker would need valid administrator credentials to exploit this vulnerability.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Nx-os	<7.0\(3\)i7\(6\)
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 34180yc
Cisco Nexus 3464c
Cisco Nexus 3524
Cisco Nexus 3524-x
Cisco Nexus 3524-x\/xl
Cisco Nexus 3524-xl
Cisco Nexus 3548
Cisco Nexus 3548-x
Cisco Nexus 3548-x\/xl
Cisco Nexus 3548-xl
Cisco Nexus 36180yc-r
Cisco Nexus 3636c-r
Cisco Nexus 9200yc
Cisco Nexus 92304qc
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 93240tc-fx2
Cisco Nexus 9332c
Cisco Nexus 9332pq
Cisco Nexus 9336pq Aci
Cisco Nexus 9348gc-fxp
Cisco Nexus 9372px
Cisco Nexus 9372px-e
Cisco Nexus 9372tx
Cisco Nexus 9372tx-e
Cisco Nexus 9396px
Cisco Nexus 9396tx
Cisco Nexus 9508
Cisco Nexus 9516
Cisco Nx-os	>=7.0\(3\)<7.0\(3\)f3\(5\)
Cisco N9k-c9504-fm-r
Cisco N9k-c9508-fm-r
Cisco N9k-x96136yc-r
Cisco N9k-x9636c-r
Cisco N9k-x9636c-rx
Cisco N9k-x9636q-r
Cisco X96136yc-r
Cisco X9636c-r
Cisco X9636c-rx
Cisco X9636q-r

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Reference Links

Frequently Asked Questions

What is CVE-2019-1769?
CVE-2019-1769 is a vulnerability in the CLI of Cisco NX-OS Software that allows an authenticated local attacker to execute arbitrary commands with root privileges.
How can an attacker exploit CVE-2019-1769?
An attacker with administrator credentials can exploit CVE-2019-1769 by sending malicious commands to the affected line card.
What is the severity of CVE-2019-1769?
CVE-2019-1769 has a severity rating of 6.7, which is considered high.
Which versions of Cisco NX-OS Software are affected by CVE-2019-1769?
Cisco NX-OS Software versions up to and including 7.0(3)i7(6) are affected by CVE-2019-1769.
How can I fix CVE-2019-1769?
To mitigate the vulnerability, Cisco recommends upgrading to a fixed software release.