CWE
22 23
Advisory Published
Updated

CVE-2023-20066: Cisco IOS XE Software Web UI Path Traversal Vulnerability

First published: Thu Mar 23 2023(Updated: )

A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to perform a directory traversal and access resources that are outside the filesystem mountpoint of the web UI. This vulnerability is due to an insufficient security configuration. An attacker could exploit this vulnerability by sending a crafted request to the web UI. A successful exploit could allow the attacker to gain read access to files that are outside the filesystem mountpoint of the web UI. Note: These files are located on a restricted filesystem that is maintained for the web UI. There is no ability to write to any files on this filesystem.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco IOS XE Web UI=16.12.3
Cisco IOS XE Web UI=17.3.2
Cisco IOS XE Web UI=17.6.2
Cisco 1000 Integrated Services Router
Cisco 1100-4g/6g Integrated Services Router
Cisco 1109-4p Integrated Services Router
Cisco 1100 Integrated Services Router
Cisco 1100 Integrated Services Router
Cisco 1100 Series Integrated Services Router
Cisco 1101 Integrated Services Router
Cisco 1101 Integrated Services Router
Cisco 1109 Integrated Services Router
Cisco 1109 Integrated Services Router
Cisco 1109 Integrated Services Router
Cisco 1111x-8p
Cisco 111x Integrated Services Router
Cisco 111x Integrated Services Router
Cisco 1120 Integrated Services Router
Cisco 1131 Integrated Services Router
Cisco 1160 Integrated Services Router
Cisco 4000 Series Integrated Services Routers
Cisco 4221 Integrated Services Router
Cisco 4321/k9 Integrated Services Router
Cisco 4331/k9-rf Integrated Services Router
Cisco 4351/k9-rf Integrated Services Router
Cisco 4431 Integrated Services Router
Cisco 4451-X Integrated Services Router
Cisco 4451-X Integrated Services Router
Cisco 4441 Integrated Services Router
Cisco 8101-32h
Cisco 8101-32h
Cisco 8102-64h
Cisco 8201
Cisco 8201
Cisco 8202
Cisco 8800 12-slot
Cisco 8800 18-slot
Cisco 8800 4-slot
Cisco 8800 8-slot
Cisco 8804
Cisco 8808
Cisco 8812
Cisco 8818
Cisco 8831 Firmware
Cisco Catalyst 9800-40
Cisco Catalyst 9800-80
Cisco Catalyst 9800-CL
Cisco Catalyst 9800-L
Cisco ASR 1000 Series
Cisco ASR 1000 Series
Cisco ASR 1000 Series
Cisco ASR 1000 ESP 200
Cisco ASR 1001
Cisco ASR 1001
Cisco ASR 1001-HX-RF
Cisco ASR 1001-X
Cisco ASR 1001-X
Cisco ASR 1002 Fixed Router
Cisco ASR 1002 Fixed Router
Cisco ASR 1002-HX
Cisco ASR 1002-X
Cisco ASR 1002-X
Cisco ASR 1004
Cisco ASR 1006
Cisco ASR 1006-X
Cisco ASR 1009-X
Cisco ASR 1013
Cisco ASR 1023 Router
Cisco ASR 900 Series firmware
Cisco ASR 9000v
Cisco ASR 9000v-v2
Cisco ASR 9000v-v2=v2
Cisco ASR 9001
Cisco ASR 9006 Router
Cisco ASR 901-12C-F-D
Cisco ASR 901-12C-FT-D
Cisco ASR 901 Series
Cisco ASR 901 Series
Cisco ASR 901-6CZ-F-A
Cisco ASR 901
Cisco ASR 901-6CZ-FS-A
Cisco ASR 901-6CZ-FS-D
Cisco ASR 901-6CZ-FT-A
Cisco ASR 901-6CZ-FT-D
Cisco ASR 9010 Router
Cisco ASR 901S-2SG-F-AH
Cisco ASR 901S
Cisco ASR 901S
Cisco ASR 901S
Cisco ASR 901S-4SG-F-D
Cisco ASR 902
Cisco ASR 902U
Cisco ASR 903
Cisco ASR 907
Cisco ASR 914
Cisco ASR 920 Series
Cisco ASR 920-10SZ-PD
Cisco ASR 920-12CZ-A router
Cisco ASR 920-12CZ-A
Cisco ASR-920-12CZ-D
Cisco ASR 920-12CZ-D
Cisco ASR 920
Cisco ASR 920-12SZ-IM Router
Cisco ASR 920
Cisco ASR 920-24SZ-IM Router
Cisco ASR 920 Series Router
Cisco ASR 920 Series Router
Cisco ASR 920-24TZ-M Router
Cisco ASR 920-24TZ-M-R
Cisco ASR 920
Cisco ASR 920-4SZ-A
Cisco ASR 920
Cisco ASR 920-4SZ-D
Cisco ASR 920-12SZ-IM
Cisco ASR 9901-RP Firmware
Cisco ASR 9902
Cisco ASR 9903
Cisco ASR 9904
Cisco ASR 9906
Cisco ASR 9910
Cisco ASR 9912
Cisco ASR 9920
Cisco ASR 9922
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 3850-12X48U-E
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 3850 Series
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 9300-24s-e Firmware
Cisco Catalyst 3850-24S-S
Cisco Catalyst 3850
Cisco Catalyst 3850-24T-L
Cisco Catalyst 3850-24T-S
Cisco Catalyst 3850-24U
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 3850-24XS
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 3850-24XU
Cisco Catalyst 3850-24XU
Cisco Catalyst 3850-24XU
Cisco Catalyst 3850-24XU
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 3850-48F-E
Cisco Catalyst 3850-48F-L
Cisco Catalyst 3850-48F-S
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 3850-48P-S
Cisco Catalyst 3850-48PW-S
Cisco Catalyst 3850-48T-E
Cisco Catalyst 3850-48T-L
Cisco Catalyst 3850 Series
Cisco Catalyst 3850
Cisco Catalyst 3850-48U-E
Cisco Catalyst 3850-48U
Cisco Catalyst 3850-48U
Cisco Catalyst 3850-48XS
Cisco Catalyst 3850
Cisco Catalyst 3850-48XS
Cisco Catalyst 3850-48XS
Cisco Catalyst 3850-48XS-S
Cisco Catalyst 3850
Cisco Catalyst 3850
Cisco Catalyst 8200
Cisco Catalyst 8300
Cisco Catalyst 8300-1N1S-4T2X
Cisco Catalyst 8300
Cisco Catalyst 8300-2N2S-4T2X
Cisco Catalyst 8300
Cisco Catalyst 8500L Series Router
Cisco Catalyst 8500
Cisco Catalyst 8500
Cisco Catalyst 8510 CSR
Cisco Catalyst 8510MSR
Cisco Catalyst 8540CSR
Cisco Catalyst 8540MSR
Cisco Catalyst 9200CX
Cisco Catalyst 9200CX
Cisco Catalyst 9200 Series
Cisco Catalyst 9300 Firmware
Cisco Catalyst 9300-24p-a Firmware
Cisco Catalyst 9300-24p-e Firmware
Cisco Catalyst 9300-24s-a Firmware
Cisco Catalyst 9300-24s-e Firmware
Cisco Catalyst 9300-24t-a Firmware
Cisco Catalyst 9300-24t-e Firmware
Cisco Catalyst 9300-24u-a Firmware
Cisco Catalyst 9300-24u-e Firmware
Cisco Catalyst 9300-24ux-a Firmware
Cisco Catalyst 9300-24ux-e Firmware
Cisco Catalyst 9300-48p-a Firmware
Cisco Catalyst 9300-48p-e Firmware
Cisco Catalyst 9300-48s-a Firmware
Cisco Catalyst 9300-48s-e Firmware
Cisco Catalyst 9300-48t-a Firmware
Cisco Catalyst 9300-48t-e Firmware
Cisco Catalyst 9300-48u-a Firmware
Cisco Catalyst 9300-48u-e Firmware
Cisco Catalyst 9300-48un-a Firmware
Cisco Catalyst 9300-48un-e Firmware
Cisco Catalyst 9300-48uxm-a Firmware
Cisco Catalyst 9300-48uxm-e Firmware
Cisco Catalyst 9300l Firmware
Cisco Catalyst 9300L-24P-4G-A Firmware
Cisco Catalyst 9300l-24p-4g-e Firmware
Cisco Catalyst 9300L-24P-4X-A Firmware
Cisco Catalyst 9300l-24p-4x-e Firmware
Cisco Catalyst 9300l-24t-4g-a Firmware
Cisco Catalyst 9300L-24T-4G-E Firmware
Cisco Catalyst 9300l-24t-4x-a Firmware
Cisco Catalyst 9300L-24T-4X-E Firmware
Cisco Catalyst 9300L-48P-4G-A Firmware
Cisco Catalyst 9300l-48p-4g-e Firmware
Cisco Catalyst 9300l-48p-4x-a Firmware
Cisco Catalyst 9300L-48P-4X-E Firmware
Cisco Catalyst 9300l-48t-4g-a Firmware
Cisco Catalyst 9300l-48t-4g-e Firmware
Cisco Catalyst 9300l-48t-4x-a Firmware
Cisco Catalyst 9300L-48T-4X-E Firmware
Cisco Catalyst 9300L Stack
Cisco Catalyst 9300lm Firmware
Cisco Catalyst 9300x Firmware
Cisco Catalyst 9400
Cisco Catalyst 9400 Supervisor Engine-1
Cisco Catalyst C9407R
Cisco Catalyst C9410R
Cisco Catalyst 9500 Series
Cisco Catalyst 9500H
Cisco Catalyst 9600
Cisco Catalyst 9600 Supervisor Engine-1
Cisco Catalyst 9600
Cisco Catalyst 9800 Firmware
Cisco Catalyst 9800-40
Cisco Catalyst 9800-40 Wireless Controller
Cisco Catalyst 9800-80
Cisco Catalyst 9800-80 Wireless Controller Firmware
Cisco Catalyst 9800-CL
Cisco Catalyst 9800-L
Cisco Catalyst 9800-L
Cisco Catalyst 9800-L
Cisco Catalyst 9800 Embedded Wireless Controller
Cisco Catalyst IE3200
Cisco Catalyst IE3200
Cisco Catalyst IE3300
Cisco Catalyst IE3300
Cisco Catalyst IE3400
Cisco Catalyst IE3400
Cisco Catalyst IE3400
Cisco Catalyst IE9300
Cisco Cdb-8u
Cisco Catalyst CG418-E
Cisco CG522-E
Cisco ESR6300 Embedded Series Routers
Cisco ESS-3300-24T-CON-A
Cisco ESS 3300
Cisco ESS 3300-NCP-A
Cisco ESS-3300-24T-NCP-E
Cisco ESS 3300
Cisco ESS 3300 CON E
Cisco ESS-3300-24T-NCP-A
Cisco ESS 3300 NCP-E
Cisco ESS9300-10X-E
Cisco Integrated Services Virtual Router Firmware

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Frequently Asked Questions

  • What is the severity of CVE-2023-20066?

    CVE-2023-20066 has a high severity rating, indicating significant potential impact on affected systems.

  • How do I fix CVE-2023-20066?

    To resolve CVE-2023-20066, users should ensure that they upgrade to the latest version of Cisco IOS XE Software that includes the security patch.

  • Who is affected by CVE-2023-20066?

    CVE-2023-20066 affects multiple versions of Cisco IOS XE Software, including 16.12.3, 17.3.2, and 17.6.2.

  • What type of vulnerability is CVE-2023-20066?

    CVE-2023-20066 is a directory traversal vulnerability that allows authenticated users to access unauthorized files.

  • What could an attacker achieve with CVE-2023-20066?

    An attacker exploiting CVE-2023-20066 could potentially access sensitive resources outside the permitted filesystem of the web UI.

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