high
7.2
CWE
88 77
Advisory Published
Updated

CVE-2019-1795: 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 Linux operating system 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 with elevated privileges. An attacker would need valid administrator credentials to exploit this vulnerability.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco NX-OS<8.2\(3\)
Cisco NX-OS>=8.3<8.3\(1\)
Cisco MDS 9132T
Cisco MDS 9148S
Cisco MDS 9148T
Cisco MDS 9216
Cisco MDS 9216
Cisco MDS 9216
Cisco MDS 9222i
Cisco MDS 9250i
Cisco MDS 9396S
Cisco MDS 9396T
Cisco MDS 9500
Cisco MDS 9500
Cisco MDS 9513 Firmware
Cisco MDS 9706 Firmware
Cisco MDS 9710 Firmware
Cisco MDS 9718 Firmware
Cisco NX-OS<7.0\(3\)i4\(8\)
Cisco NX-OS>=7.0\(3\)i7<7.3\(3\)i7\(3\)
Cisco Nexus 9432PQ
Cisco Nexus 9536PQ
Cisco Nexus 9636PQ
Cisco Nexus 9736PQ
Cisco Nexus 9000 Series N9K-X9432C-S
Cisco Nexus 9000 Series N9K-X9464PX
Cisco N9K-X9464TX2 Firmware
Cisco Nexus N9K-X9564PX
Cisco Nexus N9K-X9564TX
Cisco Nexus 9636C-R
Cisco Nexus n9k-x9636c-rx
Cisco Nexus 9000 N9K-X97160YC-EX
Cisco Nexus 9000 Series Switches n9k-x9732c-ex
Cisco Nexus 9000 Series N9K-X9732C-FX
Cisco Nexus 9000 Series Switch n9k-x9736c-ex
Cisco Nexus 9000 Series Switch
Cisco Nexus 9000 Series Switch n9k-x9788tc-fx
Cisco Nexus 3048 Firmware
Cisco Nexus 31108PC-V Firmware
Cisco Nexus 31108TC-V Firmware
Cisco Nexus 31128PQ
Cisco Nexus 3132C-Z Firmware
Cisco Nexus 3132Q-V Firmware
Cisco Nexus 3132Q-X/3132Q-XL
Cisco Nexus 3164Q Firmware
Cisco Nexus 3172PQ/PQ-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 Nexus 3524-x/xl
Cisco Nexus 3548-x/xl
Cisco Nexus 36180YC-R Firmware
Cisco Nexus 3636C-R Firmware
Cisco Nexus 92160YC Switch
Cisco Nexus 92300YC Firmware
Cisco Nexus
Cisco Nexus 93108TC-FX Switch
Cisco Nexus 93120TX Firmware
Cisco Nexus 9316D-GX Firmware
Cisco Nexus 9000 Series 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 93360YC-FX2
Cisco Nexus 9336C-FX2 Firmware
Cisco Nexus 9348GC-FXP Firmware
Cisco Nexus 93600CD-GX Firmware
Cisco Nexus 9364c-h1
Cisco Nexus 9500 Supervisor A
Cisco Nexus 9500 Supervisor A+
Cisco Nexus 9500 Supervisor B firmware
Cisco Nexus 9500 Supervisor B+
Cisco Nexus 9504 Firmware
Cisco Nexus 9508
Cisco Nexus 9516 firmware
Cisco Nexus N9K-X9636Q-R
Cisco NX-OS<6.0\(2\)a8\(11\)
Cisco NX-OS>=7.0\(3\)i4<7.0\(3\)i4\(8\)
Cisco NX-OS>=7.0\(3\)<7.0\(3\)f3\(5\)
Cisco Nexus 9500 Series
Cisco Nexus N9K-C9508-FM-R
Cisco x96136yc-r
Cisco Nexus N9K-X9636Q-R
Cisco Nexus 36180YC-R
Cisco x9636c-rx
Cisco Nexus 9636C-R
Cisco NX-OS<7.3\(4\)n1\(1\)
Cisco Nexus 5010
Cisco Nexus 5020
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 5672UP-16G Firmware
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 Nexus 7000
Cisco Nexus 7000 18-slot
Cisco Nexus 7000 4-slot
Cisco Nexus 7000 9-slot
Cisco 7700
Cisco 7700
Cisco 7700
Cisco 7700
Cisco Nexus 7000 Series Switch - n77-f312ck-26
Cisco Nexus 7000 Series n77-f324fq-25
Cisco Nexus 7700 Series Switch
Cisco Nexus 7700 series
Cisco Nexus 7000 Series N77-M312CQ-26L
Cisco Nexus 7000 Series n7k-m324fq-25l
Cisco Nexus 7000 Series Switch (N77-M348XP-23L)
Cisco Nexus 7000 n7k-f248xp-25e
Cisco Nexus 7000 Series Switch - N7K-F306CK-25
Cisco Nexus 7000 Series Switch
Cisco Nexus 7000 Series Switches
Cisco Nexus 7000 Series N7K-M206FQ-23L
Cisco NEXUS 7000 Series Switch (Model N7K-M224XP-23L)
Cisco Nexus 7000 Series n7k-m324fq-25l
Cisco Nexus 7000 Series N7K-M348XP-25L
Cisco Nexus 7000 Supervisor 1 Firmware
Cisco Nexus 7000 Supervisor 2E
Cisco Nexus 7000 Supervisor 2E Firmware
Cisco Nexus 7700 Supervisor 2E Firmware
Cisco Nexus 7700 Supervisor 3E Firmware
Cisco NX-OS<3.2\(3a\)
Cisco NX-OS>=4.0<4.0\(1a\)
Cisco UCS 6248UP Firmware
Cisco UCS 6296UP Firmware
Cisco UCS 6324 Firmware
Cisco UCS 6332
Cisco UCS 6332-16UP Fabric Interconnect firmware
Cisco Firepower Extensible Operating System<2.0.1.201
Cisco Firepower Extensible Operating System>=2.1<2.2.2.54
Cisco Firepower Extensible Operating System>=2.3<2.3.1.73
Cisco Firepower Extensible Operating System>=2.4<2.4.1.101
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 SM-24
Cisco Firepower 9300 SM-36
Cisco Firepower 9300 SM-44
Cisco ASA FirePOWER
Cisco NX-OS<5.2\(1\)sv3\(4.1\)
Cisco Nexus 1000V
Cisco NX-OS<5.2
Cisco Nexus 1000V for Hyper-V

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2019-1795?

    CVE-2019-1795 has a severity rating of critical due to its potential for unauthorized command execution with root privileges.

  • How do I fix CVE-2019-1795?

    To fix CVE-2019-1795, update the affected Cisco NX-OS Software to the latest version that addresses this command injection vulnerability.

  • Who is affected by CVE-2019-1795?

    CVE-2019-1795 affects authenticated users of Cisco FXOS and Cisco NX-OS Software versions up to and including 8.2(3) and certain versions in the 7.x range.

  • What type of vulnerability is CVE-2019-1795?

    CVE-2019-1795 is a command injection vulnerability that allows an authenticated, local attacker to execute arbitrary commands.

  • Can CVE-2019-1795 be exploited remotely?

    CVE-2019-1795 requires local access, as the exploit can only be executed by an authenticated user on the system.

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