medium
5.4
CWE
671
Advisory Published
Updated

CVE-2023-20115

First published: Wed Aug 23 2023(Updated: )

A vulnerability in the SFTP server implementation for Cisco Nexus 3000 Series Switches and 9000 Series Switches in standalone NX-OS mode could allow an authenticated, remote attacker to download or overwrite files from the underlying operating system of an affected device. This vulnerability is due to a logic error when verifying the user role when an SFTP connection is opened to an affected device. An attacker could exploit this vulnerability by connecting and authenticating via SFTP as a valid, non-administrator user. A successful exploit could allow the attacker to read or overwrite files from the underlying operating system with the privileges of the authenticated user. There are workarounds that address this vulnerability.

Credit: ykramarz@cisco.com ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco NX-OS=9.2\(1\)
Cisco NX-OS=9.2\(2\)
Cisco NX-OS=9.2\(2t\)
Cisco NX-OS=9.2\(2v\)
Cisco NX-OS=9.2\(3\)
Cisco NX-OS=9.2\(4\)
Cisco NX-OS=9.3\(1\)
Cisco NX-OS=9.3\(2\)
Cisco NX-OS=9.3\(3\)
Cisco NX-OS=9.3\(4\)
Cisco NX-OS=9.3\(5\)
Cisco NX-OS=9.3\(6\)
Cisco NX-OS=9.3\(7\)
Cisco NX-OS=9.3\(7a\)
Cisco NX-OS=9.3\(8\)
Cisco NX-OS=9.3\(9\)
Cisco NX-OS=9.3\(10\)
Cisco NX-OS=9.3\(11\)
Cisco NX-OS=10.1\(1\)
Cisco NX-OS=10.1\(2\)
Cisco NX-OS=10.1\(2t\)
Cisco NX-OS=10.2\(1\)
Cisco NX-OS=10.2\(1q\)
Cisco NX-OS=10.2\(2\)
Cisco NX-OS=10.2\(3\)
Cisco NX-OS=10.2\(3t\)
Cisco NX-OS=10.2\(4\)
Cisco NX-OS=10.2\(5\)
Cisco NX-OS=10.3\(1\)
Cisco NX-OS=10.3\(2\)
Cisco Nexus 3048 Firmware
Cisco Nexus 31108PV-V
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 3172PQ/PQ-XL
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 34200YC-SM
Cisco Nexus 3432D-S Firmware
Cisco Nexus 3464C Firmware
Cisco Nexus 3524-xl
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 36180YC-R Firmware
Cisco Nexus 3636C-R Firmware
Cisco NX-OS Nexus 9000 Series
Cisco Nexus 92160YC Switch
Cisco Nexus 92300YC Switch
Cisco Nexus 92304qc
Cisco Nexus 9232E
Cisco Nexus 92348GC-X Switch
Cisco Nexus 9236c
Cisco Nexus 9272Q Switch
Cisco Nexus Series
Cisco Nexus 93108TC-EX-24 Switch
Cisco Nexus 93108TC-FX Switch
Cisco Nexus 93108TC-FX Switch
Cisco Nexus 93108TC-FX3H
Cisco Nexus 93108TC-FX3P Firmware
Cisco Nexus 93120tx
Cisco Nexus 93128tx
Cisco Nexus 9316D-GX Firmware
Cisco Nexus 93180LC-EX Switch
Cisco Nexus 93180YC-EX
Cisco Nexus 93180YC-EX-24 Firmware
Cisco Nexus 93180YC-FX Firmware
Cisco Nexus 93180YC-FX-24 Firmware
Cisco Nexus 93180YC-FX3 Firmware
Cisco Nexus 93180YC-FX3H
Cisco Nexus 93180YC-FX3S Firmware
Cisco Nexus 93216TC-FX2 Firmware
Cisco Nexus 93240YC-FX2 Firmware
Cisco Nexus 9332C Firmware
Cisco Nexus 9332D-GX2B firmware
Cisco Nexus 9332D-H2R
Cisco Nexus 9332pq
Cisco Nexus 93360YC-FX2
Cisco Nexus 9336C-FX2 Firmware
Cisco Nexus 9336C-FX2-E Firmware
Cisco Nexus N9336PQ-X
Cisco Nexus 9348D-GX2A
Cisco Nexus 9348GC-FX3
Cisco Nexus 9348GC-FXP Firmware
Cisco Nexus 93600CD-GX Firmware
Cisco Nexus 9364C-GX Firmware
Cisco Nexus 9364C-GX Firmware
Cisco Nexus 9364D-GX2A Firmware
Cisco Nexus 9372px
Cisco Nexus 9372PX-E Switch
Cisco Nexus 9372tx
Cisco Nexus 9372TX-E Switch
Cisco Nexus 9396px
Cisco Nexus 9396tx
Cisco Nexus 9408
Cisco Nexus 9508
Cisco Nexus 9804
Cisco Nexus 9808
All of
Any of
Cisco NX-OS=9.2\(1\)
Cisco NX-OS=9.2\(2\)
Cisco NX-OS=9.2\(2t\)
Cisco NX-OS=9.2\(2v\)
Cisco NX-OS=9.2\(3\)
Cisco NX-OS=9.2\(4\)
Cisco NX-OS=9.3\(1\)
Cisco NX-OS=9.3\(2\)
Cisco NX-OS=9.3\(3\)
Cisco NX-OS=9.3\(4\)
Cisco NX-OS=9.3\(5\)
Cisco NX-OS=9.3\(6\)
Cisco NX-OS=9.3\(7\)
Cisco NX-OS=9.3\(7a\)
Cisco NX-OS=9.3\(8\)
Cisco NX-OS=9.3\(9\)
Cisco NX-OS=9.3\(10\)
Cisco NX-OS=9.3\(11\)
Cisco NX-OS=10.1\(1\)
Cisco NX-OS=10.1\(2\)
Cisco NX-OS=10.1\(2t\)
Cisco NX-OS=10.2\(1\)
Cisco NX-OS=10.2\(1q\)
Cisco NX-OS=10.2\(2\)
Cisco NX-OS=10.2\(3\)
Cisco NX-OS=10.2\(3t\)
Cisco NX-OS=10.2\(4\)
Cisco NX-OS=10.2\(5\)
Cisco NX-OS=10.3\(1\)
Cisco NX-OS=10.3\(2\)
Any of
Cisco Nexus 3048 Firmware
Cisco Nexus 31108PV-V
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 3172PQ/PQ-XL
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 34200YC-SM
Cisco Nexus 3432D-S Firmware
Cisco Nexus 3464C Firmware
Cisco Nexus 3524-xl
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 36180YC-R Firmware
Cisco Nexus 3636C-R Firmware
Cisco NX-OS Nexus 9000 Series
Cisco Nexus 92160YC Switch
Cisco Nexus 92300YC Switch
Cisco Nexus 92304qc
Cisco Nexus 9232E
Cisco Nexus 92348GC-X Switch
Cisco Nexus 9236c
Cisco Nexus 9272Q Switch
Cisco Nexus Series
Cisco Nexus 93108TC-EX-24 Switch
Cisco Nexus 93108TC-FX Switch
Cisco Nexus 93108TC-FX Switch
Cisco Nexus 93108TC-FX3H
Cisco Nexus 93108TC-FX3P Firmware
Cisco Nexus 93120tx
Cisco Nexus 93128tx
Cisco Nexus 9316D-GX Firmware
Cisco Nexus 93180LC-EX Switch
Cisco Nexus 93180YC-EX
Cisco Nexus 93180YC-EX-24 Firmware
Cisco Nexus 93180YC-FX Firmware
Cisco Nexus 93180YC-FX-24 Firmware
Cisco Nexus 93180YC-FX3 Firmware
Cisco Nexus 93180YC-FX3H
Cisco Nexus 93180YC-FX3S Firmware
Cisco Nexus 93216TC-FX2 Firmware
Cisco Nexus 93240YC-FX2 Firmware
Cisco Nexus 9332C Firmware
Cisco Nexus 9332D-GX2B firmware
Cisco Nexus 9332D-H2R
Cisco Nexus 9332pq
Cisco Nexus 93360YC-FX2
Cisco Nexus 9336C-FX2 Firmware
Cisco Nexus 9336C-FX2-E Firmware
Cisco Nexus N9336PQ-X
Cisco Nexus 9348D-GX2A
Cisco Nexus 9348GC-FX3
Cisco Nexus 9348GC-FXP Firmware
Cisco Nexus 93600CD-GX Firmware
Cisco Nexus 9364C-GX Firmware
Cisco Nexus 9364C-GX Firmware
Cisco Nexus 9364D-GX2A Firmware
Cisco Nexus 9372px
Cisco Nexus 9372PX-E Switch
Cisco Nexus 9372tx
Cisco Nexus 9372TX-E Switch
Cisco Nexus 9396px
Cisco Nexus 9396tx
Cisco Nexus 9408
Cisco Nexus 9508
Cisco Nexus 9804
Cisco Nexus 9808

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2023-20115?

    CVE-2023-20115 is rated as high severity due to the potential impact of file download or overwrite by an authenticated remote attacker.

  • How do I fix CVE-2023-20115?

    To fix CVE-2023-20115, upgrade your Cisco Nexus 3000 or 9000 Series Switches to the latest available NX-OS version as recommended by Cisco.

  • Which Cisco devices are affected by CVE-2023-20115?

    CVE-2023-20115 affects Cisco Nexus 3000 Series and 9000 Series Switches operating in standalone NX-OS mode.

  • Can CVE-2023-20115 be exploited remotely?

    Yes, CVE-2023-20115 can be exploited remotely by an authenticated attacker to manipulate files on the device's operating system.

  • What kind of access do I need to exploit CVE-2023-20115?

    Exploiting CVE-2023-20115 requires authenticated access to the affected Cisco Nexus devices.

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