high
7.2
CWE
264
Advisory Published
Updated

CVE-2018-0294

First published: Wed Jun 20 2018(Updated: )

A vulnerability in the write-erase feature of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to configure an unauthorized administrator account for an affected device. The vulnerability exists because the affected software does not properly delete sensitive files when certain CLI commands are used to clear the device configuration and reload a device. An attacker could exploit this vulnerability by logging into an affected device as an administrative user and configuring an unauthorized account for the device. The account would not require a password for authentication and would be accessible only via a Secure Shell (SSH) connection to the device. A successful exploit could allow the attacker to configure an unauthorized account that has administrative privileges, does not require a password for authentication, and does not appear in the running configuration or the audit logs for the affected device. This vulnerability affects Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, Nexus 1000V Series Switches, Nexus 1100 Series Cloud Services Platforms, Nexus 2000 Series Fabric Extenders, Nexus 3500 Platform Switches, Nexus 4000 Series Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd13993, CSCvd34845, CSCvd34857, CSCvd34862, CSCvd34879, CSCve35753.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco NX-OS=7.3\(2\)n1\(0.354\)
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=5.2\(1\)sv3\(1.10\)
Cisco Nexus 1000V
Cisco NX-OS=8.8\(3.5\)s0
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=7.0\(3\)i2\(4a\)
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 UCS 6120xp
Cisco UCS 6140xp
Cisco UCS 6248UP
Cisco UCS 6296UP
Cisco UCS 6324 firmware
Cisco UCS 6332
Cisco Firepower Extensible Operating System>=2.1.1<2.1.1.86
Cisco Firepower Extensible Operating System>=2.2<2.2.2.17
Cisco FX-OS>=1.1<2.0.1.159
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 Security Appliances
Cisco NX-OS=4.1\(2\)e1\(1a\)
Cisco Nexus 4001

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-0294?

    The severity of CVE-2018-0294 is considered critical as it could allow an authenticated, local attacker to create unauthorized administrator accounts on affected devices.

  • How do I fix CVE-2018-0294?

    To fix CVE-2018-0294, users should update their Cisco FXOS or NX-OS Software to a patched version provided in the security advisory.

  • Which products are affected by CVE-2018-0294?

    CVE-2018-0294 affects specific versions of Cisco FXOS and Cisco NX-OS Software, particularly including certain iterations of NX-OS 7.3 and NX-OS 5.2.

  • Is CVE-2018-0294 exploitable remotely?

    CVE-2018-0294 is not considered remotely exploitable as it requires local authenticated access to configure unauthorized accounts.

  • What types of attacks can CVE-2018-0294 facilitate?

    CVE-2018-0294 can facilitate unauthorized administrative access, potentially leading to a complete compromise of device management controls.

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