critical
9
CWE
78 264
Advisory Published
Updated

CVE-2018-0293: OS Command Injection

First published: Wed Jun 20 2018(Updated: )

A vulnerability in role-based access control (RBAC) for Cisco NX-OS Software could allow an authenticated, remote attacker to execute CLI commands that should be restricted for a nonadministrative user. The attacker would have to possess valid user credentials for the device. The vulnerability is due to incorrect RBAC privilege assignment for certain CLI commands. An attacker could exploit this vulnerability by authenticating to a device as a nonadministrative user and executing specific commands from the CLI. An exploit could allow the attacker to run commands that should be restricted to administrative users. These commands could modify the configuration or boot image on the device. This vulnerability affects MDS 9000 Series Multilayer Switches, Nexus 2000 Series Switches, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 3600 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules. Cisco Bug IDs: CSCvd77904.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco NX-OS>=6.0<7.3\(3\)n1\(1\)
Cisco Nexus 5000 Firmware
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 5696Q Firmware
Cisco NX-OS=7.3\(2\)n1\(0.395\)
Cisco NX-OS=8.1\(0.112\)s0
Cisco Nexus 7000 Series Switch
Cisco Nexus 7700 Series Switch
Cisco NX-OS>=7.0\(3\)i4<7.0\(3\)i7\(1\)
Cisco Nexus 92160YC Switch
Cisco Nexus 92304QC Firmware
Cisco Nexus 9236C
Cisco Nexus 9272Q Switch
Cisco Nexus
Cisco Nexus 93120TX Firmware
Cisco Nexus 93128TX
Cisco Nexus 93180YC-EX-24
Cisco Nexus 9332PQ Firmware
Cisco Nexus 9372PX-E
Cisco Nexus 9372TX Firmware
Cisco Nexus 9396PX Firmware
Cisco Nexus 9396TX Firmware
Cisco Nexus 9504 Firmware
Cisco Nexus 9508
Cisco Nexus 9516 firmware
Cisco Nexus 9000 Series Switches
Cisco x9636q-r
Cisco Nexus X9636Q-R
Cisco NX-OS>=6.0<7.0\(3\)i7\(2\)
Cisco Nexus 172tq-xl
Cisco Nexus 3016Q Firmware
Cisco Nexus 3048 Firmware
Cisco Nexus 3064
Cisco Nexus 3064
Cisco Nexus 3064x
Cisco Nexus 3100V Firmware
Cisco Nexus 31128PQ
Cisco Nexus 3132C-Z Firmware
Cisco Nexus 3132Q-XL
Cisco Nexus 3132Q-X/3132Q-XL
Cisco Nexus 3132Q-XL Firmware
Cisco Nexus 3164Q Firmware
Cisco Nexus 3172PQ/PQ-XL
Cisco Nexus 3172PQ-XL Firmware
Cisco Nexus 3172TQ Firmware
Cisco Nexus 3172TQ-XL
Cisco Nexus 3232C
Cisco Nexus 3264C-E Firmware
Cisco Nexus 3264Q Firmware
Cisco Nexus 34180YC Firmware
Cisco Nexus 3524-xl
Cisco Nexus 3524-X/XL
Cisco Nexus 3548-X/XL Firmware
Cisco Nexus 3548-X/XL
Cisco Nexus 3548-X/XL
Cisco Nexus 3636C-R Firmware
Cisco Nexus 36180YC-R
Cisco Nexus 6001P Firmware
Cisco Nexus 6001T Firmware
Cisco NX-OS>=5.2<8.1\(1\)
Cisco MDS 9100

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-0293?

    CVE-2018-0293 has a severity rating of high due to its potential to allow an authenticated attacker to execute unauthorized CLI commands.

  • How do I fix CVE-2018-0293?

    To fix CVE-2018-0293, upgrade to a fixed version of Cisco NX-OS that addresses this vulnerability.

  • What are the affected Cisco NX-OS versions for CVE-2018-0293?

    CVE-2018-0293 affects various Cisco NX-OS versions, primarily those below 7.3(3) and specific versions like 7.3(2) and 8.1(0.112).

  • Can an attacker exploit CVE-2018-0293 without credentials?

    No, an attacker must possess valid user credentials to exploit CVE-2018-0293.

  • What type of access does CVE-2018-0293 compromise?

    CVE-2018-0293 compromises role-based access control (RBAC), allowing non-administrative users to execute restricted commands.

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