high
7.2
CWE
88 77
Advisory Published
Updated

CVE-2019-1781: Cisco FXOS and NX-OS Software Command Injection Vulnerability

First published: Wed May 15 2019(Updated: )

A vulnerability in the CLI of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system of an affected device. This 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 administrator credentials to exploit this vulnerability.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco NX-OS>=5.2<6.2\(25\)
Cisco NX-OS>=7.3<8.3\(2\)
Cisco MDS 9132T
Cisco MDS 9148S
Cisco MDS 9148T
Cisco MDS 9222i
Cisco MDS 9250i
Cisco MDS 9706 Firmware
Cisco MDS 9710 Firmware
Cisco MDS 9718 Firmware
Cisco NX-OS<7.0\(3\)i4\(9\)
Cisco NX-OS>=7.0\(3\)i7<7.0\(3\)i7\(4\)
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 NX-OS<7.3\(4\)n1\(1\)
Cisco Nexus 5548P Firmware
Cisco Nexus 5548UP Firmware
Cisco Nexus 5596T Firmware
Cisco Nexus 5596UP Firmware
Cisco 56128p
Cisco Nexus 5624Q Firmware
Cisco Nexus 5648Q Firmware
Cisco Nexus 5672UP-16G
Cisco Nexus 5696Q Firmware
Cisco Nexus 6001 Firmware
Cisco Nexus 6004 Firmware
Cisco NX-OS<6.2\(22\)
Cisco NX-OS>=7.2<7.3\(3\)d1\(1\)
Cisco NX-OS>=8.0<8.2\(3\)
Cisco NX-OS>=8.3<8.3\(1\)
Cisco Nexus 7000
Cisco Nexus 7700 series
Cisco FX-OS<2.2.2.91
Cisco FX-OS>=2.3<2.3.1.130
Cisco FX-OS>=2.4<2.4.1.222
Cisco Firepower 4110 Next-Generation Firewall
Cisco Firepower 4120 Next-Generation Firewall
Cisco Firepower 4140 Next-Generation Firewall
Cisco Firepower 4150 Next-Generation Firewall
Cisco Firepower 9300 firmware
Cisco NX-OS<6.0\(2\)a8\(11\)
Cisco NX-OS>=7.0\(3\)i4<7.0\(3\)i4\(9\)
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<4.0\(1a\)
Cisco UCS 6248UP
Cisco UCS 6296UP
Cisco UCS 6324 firmware
Cisco UCS 6332
Cisco UCS 6332-16UP
Cisco NX-OS>=7.0\(3\)<7.0\(3\)f3\(5\)
Cisco Nexus 36180YC-R Firmware
Cisco Nexus 3636C-R Firmware
Cisco Nexus 9504 firmware
Cisco Nexus 9508
Cisco Nexus 9516 firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2019-1781?

    The severity of CVE-2019-1781 is classified as critical due to its potential to allow authenticated local attackers to execute arbitrary commands.

  • How do I fix CVE-2019-1781?

    To fix CVE-2019-1781, upgrade your Cisco FXOS Software or NX-OS Software to the latest patched version recommended by Cisco.

  • Which Cisco devices are affected by CVE-2019-1781?

    CVE-2019-1781 affects certain versions of Cisco FXOS Software and NX-OS Software; specific device models include Cisco Nexus and Cisco UCS series.

  • What types of attacks can CVE-2019-1781 facilitate?

    CVE-2019-1781 can facilitate command injection attacks allowing attackers to execute malicious commands on vulnerable devices.

  • When was CVE-2019-1781 disclosed?

    CVE-2019-1781 was disclosed on May 15, 2019, by Cisco in a security advisory.

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