high
7.8
CWE
88 77
Advisory Published
Updated

CVE-2019-1735: Cisco NX-OS Software Command Injection Vulnerability (CVE-2019-1735)

First published: Wed May 15 2019(Updated: )

A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local 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 certain CLI commands. 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 operating system with elevated privileges. An attacker would need valid user credentials to exploit this vulnerability.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco NX-OS<8.3\(1\)
Cisco MDS 9000 Series Multilayer Switches
Cisco MDS 9100
Cisco MDS 9200
Cisco MDS 9500
Cisco MDS 9700
Cisco NX-OS<7.0\(3\)i7\(6\)
Cisco Nexus 3016Q Firmware
Cisco Nexus 3048 Firmware
Cisco Nexus 3064 Firmware
Cisco Nexus 3064
Cisco Nexus 31108PC-V Firmware
Cisco Nexus 31108TC-V Firmware
Cisco Nexus 31128PQ
Cisco Nexus 3132C-Z Firmware
Cisco Nexus 3132Q-XL
Cisco Nexus 3132Q-V Firmware
Cisco Nexus 3132Q-XL Firmware
Cisco Nexus 3164Q Firmware
Cisco Nexus 3172 Firmware
Cisco Nexus 3172PQ-XL Firmware
Cisco Nexus 3172TQ Firmware
Cisco Nexus 3172TQ-XL
Cisco Nexus 3172TQ-XL Firmware
Cisco Nexus 3232C
Cisco Nexus 3264C-E Firmware
Cisco Nexus 3264Q Firmware
Cisco Nexus 3408-S Firmware
Cisco Nexus 34180YC Firmware
Cisco Nexus 3432D-S Firmware
Cisco Nexus 3464C Firmware
Cisco NX-OS Nexus 9000 Series
Cisco Nexus 92160YC Switch
Cisco Nexus 92300YC Firmware
Cisco Nexus 92304QC Switch
Cisco Nexus 92348GC-X Switch
Cisco Nexus 9236C Switch
Cisco Nexus 9272Q Switch
Cisco Nexus
Cisco Nexus 93108TC-FX Switch
Cisco Nexus 93120TX Firmware
Cisco Nexus 93128 Firmware
Cisco Nexus 93180LC-EX Switch
Cisco Nexus 93180YC-EX-24
Cisco Nexus 93180YC-FX Firmware
Cisco Nexus 93216TC-FX2 Firmware
Cisco Nexus 93240YC-FX2 Firmware
Cisco Nexus 9332C Firmware
Cisco Nexus 9332PQ Firmware
Cisco Nexus 93360YC-FX2
Cisco Nexus 9336C-FX2 Firmware
Cisco Nexus N9336PQ-X
Cisco Nexus 9348GC-FXP Firmware
Cisco Nexus 9364c-h1
Cisco Nexus 9372PX-E
Cisco Nexus 9372PX-E Firmware
Cisco Nexus 9372TX
Cisco Nexus 9372TX-E Switch
Cisco Nexus 9396PX Firmware
Cisco Nexus 9396TX Firmware
Cisco Nexus 9504 firmware
Cisco Nexus 9508
Cisco Nexus 9516 firmware
Cisco NX-OS<6.0\(2\)a8\(11\)
Cisco NX-OS>=7.0\(3\)i4<7.0\(3\)i7\(6\)
Cisco Nexus 3524-xl
Cisco Nexus 3524-xl
Cisco Nexus 3524-XL Firmware
Cisco Nexus 3548-X/XL Firmware
Cisco Nexus 3548-X/XL
Cisco Nexus 3548-X/XL
Cisco NX-OS>=7.3<7.3\(4\)n1\(1\)
Cisco NX-OS for Nexus 5500 Platform Switches
Cisco Nexus 5600 Firmware
Cisco Nexus 6000 firmware
Cisco NX-OS>=6.2<6.2\(22\)
Cisco NX-OS>=7.2<7.3\(3\)d1\(1\)
Cisco NX-OS>=8.0<8.3\(1\)
Cisco Nexus 7000
Cisco Nexus 7700 series
Cisco NX-OS<4.0\(2a\)
Cisco UCS 6248UP
Cisco UCS 6296UP
Cisco UCS 6324 firmware
Cisco UCS 6332
Cisco UCS 6332-16UP
Cisco NX-OS>=5.2<=5.2\(1\)sv5\(1.1\)
Cisco Nexus 1000 Virtual Edge
Cisco NX-OS<=5.2
Cisco Nexus 1000V for Hyper-V
Cisco NX-OS<5.2\(1\)sv3\(4.1a\)
Cisco Nexus 1000V
Cisco NX-OS>=7.0\(3\)<7.0\(3\)f3\(5\)
Cisco Nexus 36180YC-R Firmware
Cisco Nexus 3636C-R Firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2019-1735?

    The severity of CVE-2019-1735 is rated as high due to the potential for authenticated attackers to execute arbitrary commands with elevated privileges.

  • How do I fix CVE-2019-1735?

    To fix CVE-2019-1735, update your Cisco NX-OS Software to the latest version that is not affected by this vulnerability.

  • Which versions of Cisco NX-OS are affected by CVE-2019-1735?

    Cisco NX-OS versions prior to 8.3(1) and between 7.0(3)i4 and 7.0(3)i7(6) are affected by CVE-2019-1735.

  • Can CVE-2019-1735 be exploited remotely?

    No, CVE-2019-1735 requires local authentication, meaning an attacker must have local access to the device to exploit the vulnerability.

  • What type of devices are impacted by CVE-2019-1735?

    CVE-2019-1735 impacts devices running Cisco NX-OS Software, specifically those versions noted in the advisory.

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