CVE-2020-3393: Cisco IOS XE Software IOx Application Hosting Privilege Escalation Vulnerability
First published: Thu Sep 24 2020(Updated: )
A vulnerability in the application-hosting subsystem of Cisco IOS XE Software could allow an authenticated, local attacker to elevate privileges to root on an affected device. The attacker could execute IOS XE commands outside the application-hosting subsystem Docker container as well as on the underlying Linux operating system. These commands could be run as the root user. The vulnerability is due to a combination of two factors: (a) incomplete input validation of the user payload of CLI commands, and (b) improper role-based access control (RBAC) when commands are issued at the command line within the application-hosting subsystem. An attacker could exploit this vulnerability by using a CLI command with crafted user input. A successful exploit could allow the lower-privileged attacker to execute arbitrary CLI commands with root privileges. The attacker would need valid user credentials to exploit this vulnerability.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE Web UI | =16.12.1 | |
| Cisco 1100-4g/6g Integrated Services Router | ||
| Cisco 1100 Integrated Services Router | ||
| Cisco 1100 Integrated Services Router | ||
| Cisco 1109-4p Integrated Services Router | ||
| Cisco 1100 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 1160 Integrated Services Router | ||
| Cisco 4221 Integrated Services Router | ||
| Cisco 4331/k9-rf Integrated Services Router | ||
| Cisco 4431 Integrated Services Router | ||
| Cisco 4451-X Integrated Services Router | ||
| Cisco 4441 Integrated Services Router | ||
| Cisco ASR 1000 series software | ||
| Cisco ASR 1001 | ||
| Cisco ASR 1001-X | ||
| Cisco ASR 1002 Fixed Router | ||
| Cisco ASR 1002-X | ||
| Cisco ASR 1004 | ||
| Cisco ASR 1006 | ||
| Cisco ASR 1013 | ||
| Cisco ASR 1001-HX | ||
| Cisco ASR 1001-HX-RF | ||
| Cisco ASR 1001-X | ||
| Cisco ASR 1001-X | ||
| Cisco ASR 1002-HX | ||
| Cisco ASR 1002-HX | ||
| Cisco ASR 1002-HX | ||
| Cisco ASR 1002-X | ||
| Cisco ASR 1002-X | ||
| Cisco Catalyst 9800-40 | ||
| Cisco Catalyst 9800-80 | ||
| Cisco Catalyst 9800-CL | ||
| Cisco Catalyst 9800-L | ||
| Cisco Catalyst 9800-L | ||
| Cisco Catalyst 9800-L | ||
| Cisco Catalyst C9200 | ||
| Cisco Catalyst 9200 Series | ||
| Cisco Catalyst C9200-48P | ||
| Cisco Catalyst 9200 Series | ||
| Cisco Catalyst C9200L-24P-4G | ||
| Cisco Catalyst C9200L-24P-4X | ||
| Cisco Catalyst C9200L-24PXG-2Y | ||
| Cisco Catalyst C9200L-24PXG-4X | ||
| Cisco Catalyst C9200L-24T-4G | ||
| Cisco Catalyst C9200L-24T-4X | ||
| Cisco Catalyst C9200L-48P-4G | ||
| Cisco Catalyst C9200L-48P-4X | ||
| Cisco Catalyst C9200L-48PXG-2Y | ||
| Cisco Catalyst C9200L-48PXG-4X | ||
| Cisco Catalyst C9200L-48T-4G | ||
| Cisco Catalyst C9200L-48T-4X | ||
| Cisco Catalyst C9300-24P | ||
| Cisco Catalyst C9300 | ||
| Cisco Catalyst 9300-24T-A | ||
| Cisco Catalyst C9300-24U | ||
| Cisco Catalyst 9300-24UX | ||
| Cisco Catalyst C9300-48P | ||
| Cisco Catalyst C9300 | ||
| Cisco Catalyst C9300 | ||
| Cisco Catalyst 9300-48U | ||
| Cisco Catalyst C9300 Series | ||
| Cisco Catalyst C9300-48UXM | ||
| Cisco Catalyst C9300 | ||
| Cisco Catalyst C9300L-24P-4X | ||
| Cisco Catalyst 9300L-24T-4G | ||
| Cisco Catalyst 9300 | ||
| Cisco Catalyst C9300L-48P-4G | ||
| Cisco Catalyst 9300 Series Switches | ||
| Cisco Catalyst C9300 | ||
| Cisco Catalyst C9300L-48T-4X | ||
| Cisco Catalyst C9404R | ||
| Cisco Catalyst 9407R | ||
| Cisco Catalyst 9410R | ||
| Cisco Catalyst 9500 | ||
| Cisco Catalyst 9500 | ||
| Cisco Catalyst 9500 | ||
| Cisco Catalyst C9500-24Y4C | ||
| Cisco Catalyst 9500 | ||
| Cisco Catalyst C9500-32QC | ||
| Cisco Catalyst C9500-40x | ||
| Cisco Catalyst C9500-48Y4C | ||
| Cisco Cloud Services Router 1000V | ||
| Cisco Catalyst 3650 Series Switches | ||
| Cisco Catalyst 3650-12X48UR | ||
| Cisco Catalyst 3650 Series Switch | ||
| Cisco Catalyst 3650 Series Switch | ||
| Cisco Catalyst 3650 24 Port PoE Switch (WS-C3650-24PD) | ||
| Cisco Catalyst 3650-24PS | ||
| Cisco Catalyst 3650-24TD Switch | ||
| Cisco Catalyst 3650-24TS | ||
| Cisco Catalyst 3650 Series Switch | ||
| Cisco Catalyst 3650-48FQ Switch | ||
| Cisco Catalyst 3650-48FQM Switch | ||
| Cisco Catalyst 3650 Series Switch WS-C3650-48FS | ||
| Cisco Catalyst 3650-48PD | ||
| Cisco Catalyst 3650 Series Switches | ||
| Cisco Catalyst 3650-48PS | ||
| Cisco Catalyst 3650 Series Switches | ||
| Cisco Catalyst 3650 48TQ | ||
| Cisco Catalyst 3650-48TS Switch | ||
| Cisco Catalyst 3650-8X24UQ | ||
| Cisco Catalyst 3850 | ||
| Cisco Catalyst 3850 Series Switches | ||
| Cisco Catalyst 3850 Series Switch | ||
| Cisco Catalyst 3850 Switch (model WS-C3850-12XS) | ||
| Cisco Catalyst 3850 Series Switch | ||
| Cisco Catalyst 3850 Series Switches | ||
| Cisco Catalyst 3850 | ||
| Cisco Catalyst 3850 Series Switch | ||
| Cisco Catalyst 3850 Switch | ||
| Cisco Catalyst 3850-24XU | ||
| Cisco Catalyst 3850 48F Switch | ||
| Cisco Catalyst 3850 48 Port PoE Switch | ||
| Cisco Catalyst 3850 Series Switches | ||
| Cisco Catalyst 3850-48U | ||
| Cisco Catalyst 3850 Series Switches | ||
| All of | ||
| Cisco IOS XE Web UI | =16.12.1 | |
| Any of | ||
| Cisco 1100-4g/6g Integrated Services Router | ||
| Cisco 1100 Integrated Services Router | ||
| Cisco 1100 Integrated Services Router | ||
| Cisco 1109-4p Integrated Services Router | ||
| Cisco 1100 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 1160 Integrated Services Router | ||
| Cisco 4221 Integrated Services Router | ||
| Cisco 4331/k9-rf Integrated Services Router | ||
| Cisco 4431 Integrated Services Router | ||
| Cisco 4451-X Integrated Services Router | ||
| Cisco 4441 Integrated Services Router | ||
| Cisco ASR 1000 series software | ||
| Cisco ASR 1001 | ||
| Cisco ASR 1001-X | ||
| Cisco ASR 1002 Fixed Router | ||
| Cisco ASR 1002-X | ||
| Cisco ASR 1004 | ||
| Cisco ASR 1006 | ||
| Cisco ASR 1013 | ||
| Cisco ASR 1001-HX | ||
| Cisco ASR 1001-HX-RF | ||
| Cisco ASR 1001-X | ||
| Cisco ASR 1001-X | ||
| Cisco ASR 1002-HX | ||
| Cisco ASR 1002-HX | ||
| Cisco ASR 1002-HX | ||
| Cisco ASR 1002-X | ||
| Cisco ASR 1002-X | ||
| Cisco Catalyst 9800-40 | ||
| Cisco Catalyst 9800-80 | ||
| Cisco Catalyst 9800-CL | ||
| Cisco Catalyst 9800-L | ||
| Cisco Catalyst 9800-L | ||
| Cisco Catalyst 9800-L | ||
| Cisco Catalyst C9200 | ||
| Cisco Catalyst 9200 Series | ||
| Cisco Catalyst C9200-48P | ||
| Cisco Catalyst 9200 Series | ||
| Cisco Catalyst C9200L-24P-4G | ||
| Cisco Catalyst C9200L-24P-4X | ||
| Cisco Catalyst C9200L-24PXG-2Y | ||
| Cisco Catalyst C9200L-24PXG-4X | ||
| Cisco Catalyst C9200L-24T-4G | ||
| Cisco Catalyst C9200L-24T-4X | ||
| Cisco Catalyst C9200L-48P-4G | ||
| Cisco Catalyst C9200L-48P-4X | ||
| Cisco Catalyst C9200L-48PXG-2Y | ||
| Cisco Catalyst C9200L-48PXG-4X | ||
| Cisco Catalyst C9200L-48T-4G | ||
| Cisco Catalyst C9200L-48T-4X | ||
| Cisco Catalyst C9300-24P | ||
| Cisco Catalyst C9300 | ||
| Cisco Catalyst 9300-24T-A | ||
| Cisco Catalyst C9300-24U | ||
| Cisco Catalyst 9300-24UX | ||
| Cisco Catalyst C9300-48P | ||
| Cisco Catalyst C9300 | ||
| Cisco Catalyst C9300 | ||
| Cisco Catalyst 9300-48U | ||
| Cisco Catalyst C9300 Series | ||
| Cisco Catalyst C9300-48UXM | ||
| Cisco Catalyst C9300 | ||
| Cisco Catalyst C9300L-24P-4X | ||
| Cisco Catalyst 9300L-24T-4G | ||
| Cisco Catalyst 9300 | ||
| Cisco Catalyst C9300L-48P-4G | ||
| Cisco Catalyst 9300 Series Switches | ||
| Cisco Catalyst C9300 | ||
| Cisco Catalyst C9300L-48T-4X | ||
| Cisco Catalyst C9404R | ||
| Cisco Catalyst 9407R | ||
| Cisco Catalyst 9410R | ||
| Cisco Catalyst 9500 | ||
| Cisco Catalyst 9500 | ||
| Cisco Catalyst 9500 | ||
| Cisco Catalyst C9500-24Y4C | ||
| Cisco Catalyst 9500 | ||
| Cisco Catalyst C9500-32QC | ||
| Cisco Catalyst C9500-40x | ||
| Cisco Catalyst C9500-48Y4C | ||
| Cisco Cloud Services Router 1000V | ||
| Cisco Catalyst 3650 Series Switches | ||
| Cisco Catalyst 3650-12X48UR | ||
| Cisco Catalyst 3650 Series Switch | ||
| Cisco Catalyst 3650 Series Switch | ||
| Cisco Catalyst 3650 24 Port PoE Switch (WS-C3650-24PD) | ||
| Cisco Catalyst 3650-24PS | ||
| Cisco Catalyst 3650-24TD Switch | ||
| Cisco Catalyst 3650-24TS | ||
| Cisco Catalyst 3650 Series Switch | ||
| Cisco Catalyst 3650-48FQ Switch | ||
| Cisco Catalyst 3650-48FQM Switch | ||
| Cisco Catalyst 3650 Series Switch WS-C3650-48FS | ||
| Cisco Catalyst 3650-48PD | ||
| Cisco Catalyst 3650 Series Switches | ||
| Cisco Catalyst 3650-48PS | ||
| Cisco Catalyst 3650 Series Switches | ||
| Cisco Catalyst 3650 48TQ | ||
| Cisco Catalyst 3650-48TS Switch | ||
| Cisco Catalyst 3650-8X24UQ | ||
| Cisco Catalyst 3850 | ||
| Cisco Catalyst 3850 Series Switches | ||
| Cisco Catalyst 3850 Series Switch | ||
| Cisco Catalyst 3850 Switch (model WS-C3850-12XS) | ||
| Cisco Catalyst 3850 Series Switch | ||
| Cisco Catalyst 3850 Series Switches | ||
| Cisco Catalyst 3850 | ||
| Cisco Catalyst 3850 Series Switch | ||
| Cisco Catalyst 3850 Switch | ||
| Cisco Catalyst 3850-24XU | ||
| Cisco Catalyst 3850 48F Switch | ||
| Cisco Catalyst 3850 48 Port PoE Switch | ||
| Cisco Catalyst 3850 Series Switches | ||
| Cisco Catalyst 3850-48U | ||
| Cisco Catalyst 3850 Series Switches |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-3393?
CVE-2020-3393 has been rated as a high severity vulnerability due to its potential for privilege escalation.
How do I fix CVE-2020-3393?
To mitigate CVE-2020-3393, you should upgrade to a fixed software version of Cisco IOS XE as specified in security advisories.
Who is affected by CVE-2020-3393?
CVE-2020-3393 affects devices running Cisco IOS XE software version 16.12.1.
What type of attack does CVE-2020-3393 facilitate?
CVE-2020-3393 allows an authenticated, local attacker to elevate their privileges to root on the affected device.
Is CVE-2020-3393 already being exploited in the wild?
As of now, there have been no confirmed active exploits reported for CVE-2020-3393.
- agent/type
- agent/references
- agent/title
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/first-publish-date
- agent/event
- agent/severity
- agent/author
- agent/last-modified-date
- agent/source
- agent/weakness
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- vendor/cisco
- canonical/cisco ios xe web ui
- version/cisco ios xe web ui/16.12.1
- canonical/cisco 1100-4g/6g integrated services router
- canonical/cisco 1100 integrated services router
- canonical/cisco 1109-4p integrated services router
- canonical/cisco 1100 series integrated services router
- canonical/cisco 1101 integrated services router
- canonical/cisco 1109 integrated services router
- canonical/cisco 1111x-8p
- canonical/cisco 111x integrated services router
- canonical/cisco 1120 integrated services router
- canonical/cisco 1160 integrated services router
- canonical/cisco 4221 integrated services router
- canonical/cisco 4331/k9-rf integrated services router
- canonical/cisco 4431 integrated services router
- canonical/cisco 4451-x integrated services router
- canonical/cisco 4441 integrated services router
- canonical/cisco asr 1000 series software
- canonical/cisco asr 1001
- canonical/cisco asr 1001-x
- canonical/cisco asr 1002 fixed router
- canonical/cisco asr 1002-x
- canonical/cisco asr 1004
- canonical/cisco asr 1006
- canonical/cisco asr 1013
- canonical/cisco asr 1001-hx
- canonical/cisco asr 1001-hx-rf
- canonical/cisco asr 1002-hx
- canonical/cisco catalyst 9800-40
- canonical/cisco catalyst 9800-80
- canonical/cisco catalyst 9800-cl
- canonical/cisco catalyst 9800-l
- canonical/cisco catalyst c9200
- canonical/cisco catalyst 9200 series
- canonical/cisco catalyst c9200-48p
- canonical/cisco catalyst c9200l-24p-4g
- canonical/cisco catalyst c9200l-24p-4x
- canonical/cisco catalyst c9200l-24pxg-2y
- canonical/cisco catalyst c9200l-24pxg-4x
- canonical/cisco catalyst c9200l-24t-4g
- canonical/cisco catalyst c9200l-24t-4x
- canonical/cisco catalyst c9200l-48p-4g
- canonical/cisco catalyst c9200l-48p-4x
- canonical/cisco catalyst c9200l-48pxg-2y
- canonical/cisco catalyst c9200l-48pxg-4x
- canonical/cisco catalyst c9200l-48t-4g
- canonical/cisco catalyst c9200l-48t-4x
- canonical/cisco catalyst c9300-24p
- canonical/cisco catalyst c9300
- canonical/cisco catalyst 9300-24t-a
- canonical/cisco catalyst c9300-24u
- canonical/cisco catalyst 9300-24ux
- canonical/cisco catalyst c9300-48p
- canonical/cisco catalyst 9300-48u
- canonical/cisco catalyst c9300 series
- canonical/cisco catalyst c9300-48uxm
- canonical/cisco catalyst c9300l-24p-4x
- canonical/cisco catalyst 9300l-24t-4g
- canonical/cisco catalyst 9300
- canonical/cisco catalyst c9300l-48p-4g
- canonical/cisco catalyst 9300 series switches
- canonical/cisco catalyst c9300l-48t-4x
- canonical/cisco catalyst c9404r
- canonical/cisco catalyst 9407r
- canonical/cisco catalyst 9410r
- canonical/cisco catalyst 9500
- canonical/cisco catalyst c9500-24y4c
- canonical/cisco catalyst c9500-32qc
- canonical/cisco catalyst c9500-40x
- canonical/cisco catalyst c9500-48y4c
- canonical/cisco cloud services router 1000v
- canonical/cisco catalyst 3650 series switches
- canonical/cisco catalyst 3650-12x48ur
- canonical/cisco catalyst 3650 series switch
- canonical/cisco catalyst 3650 24 port poe switch (ws-c3650-24pd)
- canonical/cisco catalyst 3650-24ps
- canonical/cisco catalyst 3650-24td switch
- canonical/cisco catalyst 3650-24ts
- canonical/cisco catalyst 3650-48fq switch
- canonical/cisco catalyst 3650-48fqm switch
- canonical/cisco catalyst 3650 series switch ws-c3650-48fs
- canonical/cisco catalyst 3650-48pd
- canonical/cisco catalyst 3650-48ps
- canonical/cisco catalyst 3650 48tq
- canonical/cisco catalyst 3650-48ts switch
- canonical/cisco catalyst 3650-8x24uq
- canonical/cisco catalyst 3850
- canonical/cisco catalyst 3850 series switches
- canonical/cisco catalyst 3850 series switch
- canonical/cisco catalyst 3850 switch (model ws-c3850-12xs)
- canonical/cisco catalyst 3850 switch
- canonical/cisco catalyst 3850-24xu
- canonical/cisco catalyst 3850 48f switch
- canonical/cisco catalyst 3850 48 port poe switch
- canonical/cisco catalyst 3850-48u