critical
9
CWE
74 20
Advisory Published
Updated

CVE-2018-0313: Input Validation

First published: Thu Jun 21 2018(Updated: )

A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an authenticated, remote attacker to send a malicious packet to the management interface on an affected system and execute a command-injection exploit. The vulnerability is due to incorrect input validation of user-supplied data to the NX-API subsystem. An attacker could exploit this vulnerability by sending a malicious HTTP or HTTPS packet to the management interface of an affected system that has the NX-API feature enabled. A successful exploit could allow the attacker to execute arbitrary commands with root privileges. Note: NX-API is disabled by default. This vulnerability affects MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 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: CSCvd47415, CSCve03216, CSCve03224, CSCve03234.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco NX-OS=7.0\(0\)hsk\(0.357\)
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=8.0\(1\)s20
Cisco NX-OS=8.1\(0\)bd\(0.20\)
Cisco NX-OS=8.1\(0.97\)s0
Cisco Nexus 7000
Cisco Nexus 7700 series
Cisco NX-OS=8.1\(1\)s5
Cisco Nexus 92160YC Switch
Cisco Nexus 92304QC Switch
Cisco Nexus 9236C Switch
Cisco Nexus 9272Q Switch
Cisco Nexus
Cisco Nexus 93120TX Firmware
Cisco Nexus 93128 Firmware
Cisco Nexus 93180YC-EX-24
Cisco Nexus 9332PQ Firmware
Cisco Nexus 9372PX-E
Cisco Nexus 9372TX
Cisco Nexus 9396PX Firmware
Cisco Nexus 9396TX Firmware
Cisco Nexus 9504 firmware
Cisco Nexus 9508
Cisco Nexus 9516 firmware
Cisco Nexus 9508
Cisco x9636q-r
Cisco Nexus X9636Q-R
Cisco NX-OS
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-XL Firmware
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 2148T FEX Switch
Cisco Nexus 2224TP FEX Switch
Cisco Nexus 2232pp fex switch
Cisco Nexus 2232TM-E 10GE
Cisco Nexus 2232TM-E 10GE
Cisco Nexus 2248PQ 10GE
Cisco Nexus 2248TP FEX Switch
Cisco Nexus 2248TP FEX Switch
Cisco Nexus 6001P Firmware
Cisco Nexus 6001T Firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-0313?

    CVE-2018-0313 has been rated as high severity due to its potential to allow command injection by an authenticated attacker.

  • How do I fix CVE-2018-0313?

    To mitigate CVE-2018-0313, upgrade the Cisco NX-OS Software to a version not affected by this vulnerability as detailed in the security advisory.

  • Who is affected by CVE-2018-0313?

    CVE-2018-0313 affects Cisco NX-OS Software running specific vulnerable versions including 7.0(0)hsk(0.357) and certain NX-OS 8.x versions.

  • Can CVE-2018-0313 be exploited remotely?

    Yes, CVE-2018-0313 can be exploited remotely by an authenticated attacker sending malicious packets to the management interface.

  • What are the potential impacts of CVE-2018-0313?

    The potential impacts of CVE-2018-0313 include unauthorized command execution on the affected NX-OS device.

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