CVE-2020-3404: Cisco IOS XE Software Consent Token Bypass Vulnerability
First published: Thu Sep 24 2020(Updated: )
A vulnerability in the persistent Telnet/Secure Shell (SSH) CLI of Cisco IOS XE Software could allow an authenticated, local attacker to gain shell access on an affected device and execute commands on the underlying operating system (OS) with root privileges. The vulnerability is due to insufficient enforcement of the consent token in authorizing shell access. An attacker could exploit this vulnerability by authenticating to the persistent Telnet/SSH CLI on an affected device and requesting shell access. A successful exploit could allow the attacker to gain shell access on the affected device and execute commands on the underlying OS with root privileges.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE | =16.11.1 | |
| Cisco 1100-4g Integrated Services Router | ||
| Cisco 1100-4gltegb Integrated Services Router | ||
| Cisco 1100-4gltena Integrated Services Router | ||
| Cisco 1100-4p Integrated Services Router | ||
| Cisco 1100-6g Integrated Services Router | ||
| Cisco 1100-8p Integrated Services Router | ||
| Cisco 1100-lte Integrated Services Router | ||
| Cisco 1100 Integrated Services Router | ||
| Cisco 1101-4p Integrated Services Router | ||
| Cisco 1101 Integrated Services Router | ||
| Cisco 1109-2p Integrated Services Router | ||
| Cisco 1109-4p Integrated Services Router | ||
| Cisco 1109 Integrated Services Router | ||
| Cisco 1111x-8p Integrated Services Router | ||
| Cisco 1111x 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 Integrated Services Router | ||
| Cisco 4431 Integrated Services Router | ||
| Cisco 4451 Integrated Services Router | ||
| Cisco 4461 Integrated Services Router | ||
| Cisco Asr 1000-x | ||
| Cisco Asr 1001 | ||
| Cisco Asr 1001-x | ||
| Cisco Asr 1002 | ||
| Cisco Asr 1002-x | ||
| Cisco Asr 1004 | ||
| Cisco Asr 1006 | ||
| Cisco Asr 1013 | ||
| Cisco Asr1001-hx | ||
| Cisco Asr1001-hx-rf | ||
| Cisco Asr1001-x-rf | ||
| Cisco Asr1001-x-ws | ||
| Cisco Asr1002-hx | ||
| Cisco Asr1002-hx-rf | ||
| Cisco Asr1002-hx-ws | ||
| Cisco Asr1002-x-rf | ||
| Cisco Asr1002-x-ws | ||
| Cisco Catalyst 9800-40 | ||
| Cisco Catalyst 9800-80 | ||
| Cisco Catalyst 9800-cl | ||
| Cisco Catalyst 9800-l | ||
| Cisco Catalyst 9800-l-c | ||
| Cisco Catalyst 9800-l-f | ||
| Cisco Catalyst C9200-24p | ||
| Cisco Catalyst C9200-24t | ||
| Cisco Catalyst C9200-48p | ||
| Cisco Catalyst C9200-48t | ||
| 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 C9300-24s | ||
| Cisco Catalyst C9300-24t | ||
| Cisco Catalyst C9300-24u | ||
| Cisco Catalyst C9300-24ux | ||
| Cisco Catalyst C9300-48p | ||
| Cisco Catalyst C9300-48s | ||
| Cisco Catalyst C9300-48t | ||
| Cisco Catalyst C9300-48u | ||
| Cisco Catalyst C9300-48un | ||
| Cisco Catalyst C9300-48uxm | ||
| Cisco Catalyst C9300l-24p-4g | ||
| Cisco Catalyst C9300l-24p-4x | ||
| Cisco Catalyst C9300l-24t-4g | ||
| Cisco Catalyst C9300l-24t-4x | ||
| Cisco Catalyst C9300l-48p-4g | ||
| Cisco Catalyst C9300l-48p-4x | ||
| Cisco Catalyst C9300l-48t-4g | ||
| Cisco Catalyst C9300l-48t-4x | ||
| Cisco Catalyst C9404r | ||
| Cisco Catalyst C9407r | ||
| Cisco Catalyst C9410r | ||
| Cisco Catalyst C9500-12q | ||
| Cisco Catalyst C9500-16x | ||
| Cisco Catalyst C9500-24q | ||
| Cisco Catalyst C9500-24y4c | ||
| Cisco Catalyst C9500-32c | ||
| Cisco Catalyst C9500-32qc | ||
| Cisco Catalyst C9500-40x | ||
| Cisco Catalyst C9500-48y4c | ||
| Cisco Csr 1000v | ||
| Cisco Ws-c3650-12x48uq | ||
| Cisco Ws-c3650-12x48ur | ||
| Cisco Ws-c3650-12x48uz | ||
| Cisco Ws-c3650-24pd | ||
| Cisco Ws-c3650-24pdm | ||
| Cisco Ws-c3650-24ps | ||
| Cisco Ws-c3650-24td | ||
| Cisco Ws-c3650-24ts | ||
| Cisco Ws-c3650-48fd | ||
| Cisco Ws-c3650-48fq | ||
| Cisco Ws-c3650-48fqm | ||
| Cisco Ws-c3650-48fs | ||
| Cisco Ws-c3650-48pd | ||
| Cisco Ws-c3650-48pq | ||
| Cisco Ws-c3650-48ps | ||
| Cisco Ws-c3650-48td | ||
| Cisco Ws-c3650-48tq | ||
| Cisco Ws-c3650-48ts | ||
| Cisco Ws-c3650-8x24uq | ||
| Cisco Ws-c3850 | ||
| Cisco Ws-c3850-12s | ||
| Cisco Ws-c3850-12x48u | ||
| Cisco Ws-c3850-12xs | ||
| Cisco Ws-c3850-24p | ||
| Cisco Ws-c3850-24s | ||
| Cisco Ws-c3850-24t | ||
| Cisco Ws-c3850-24u | ||
| Cisco Ws-c3850-24xs | ||
| Cisco Ws-c3850-24xu | ||
| Cisco Ws-c3850-48f | ||
| Cisco Ws-c3850-48p | ||
| Cisco Ws-c3850-48t | ||
| Cisco Ws-c3850-48u | ||
| Cisco Ws-c3850-48xs |
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Reference Links
- collector/nvd-index
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/severity
- agent/title
- agent/last-modified-date
- agent/weakness
- agent/author
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- vendor/cisco
- canonical/cisco ios xe
- version/cisco ios xe/16.11.1
- canonical/cisco 1100-4g integrated services router
- canonical/cisco 1100-4gltegb integrated services router
- canonical/cisco 1100-4gltena integrated services router
- canonical/cisco 1100-4p integrated services router
- canonical/cisco 1100-6g integrated services router
- canonical/cisco 1100-8p integrated services router
- canonical/cisco 1100-lte integrated services router
- canonical/cisco 1100 integrated services router
- canonical/cisco 1101-4p integrated services router
- canonical/cisco 1101 integrated services router
- canonical/cisco 1109-2p integrated services router
- canonical/cisco 1109-4p integrated services router
- canonical/cisco 1109 integrated services router
- canonical/cisco 1111x-8p integrated services router
- canonical/cisco 1111x integrated services router
- 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 integrated services router
- canonical/cisco 4431 integrated services router
- canonical/cisco 4451 integrated services router
- canonical/cisco 4461 integrated services router
- canonical/cisco asr 1000-x
- canonical/cisco asr 1001
- canonical/cisco asr 1001-x
- canonical/cisco asr 1002
- canonical/cisco asr 1002-x
- canonical/cisco asr 1004
- canonical/cisco asr 1006
- canonical/cisco asr 1013
- canonical/cisco asr1001-hx
- canonical/cisco asr1001-hx-rf
- canonical/cisco asr1001-x-rf
- canonical/cisco asr1001-x-ws
- canonical/cisco asr1002-hx
- canonical/cisco asr1002-hx-rf
- canonical/cisco asr1002-hx-ws
- canonical/cisco asr1002-x-rf
- canonical/cisco asr1002-x-ws
- canonical/cisco catalyst 9800-40
- canonical/cisco catalyst 9800-80
- canonical/cisco catalyst 9800-cl
- canonical/cisco catalyst 9800-l
- canonical/cisco catalyst 9800-l-c
- canonical/cisco catalyst 9800-l-f
- canonical/cisco catalyst c9200-24p
- canonical/cisco catalyst c9200-24t
- canonical/cisco catalyst c9200-48p
- canonical/cisco catalyst c9200-48t
- 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 c9300-24s
- canonical/cisco catalyst c9300-24t
- canonical/cisco catalyst c9300-24u
- canonical/cisco catalyst c9300-24ux
- canonical/cisco catalyst c9300-48p
- canonical/cisco catalyst c9300-48s
- canonical/cisco catalyst c9300-48t
- canonical/cisco catalyst c9300-48u
- canonical/cisco catalyst c9300-48un
- canonical/cisco catalyst c9300-48uxm
- canonical/cisco catalyst c9300l-24p-4g
- canonical/cisco catalyst c9300l-24p-4x
- canonical/cisco catalyst c9300l-24t-4g
- canonical/cisco catalyst c9300l-24t-4x
- canonical/cisco catalyst c9300l-48p-4g
- canonical/cisco catalyst c9300l-48p-4x
- canonical/cisco catalyst c9300l-48t-4g
- canonical/cisco catalyst c9300l-48t-4x
- canonical/cisco catalyst c9404r
- canonical/cisco catalyst c9407r
- canonical/cisco catalyst c9410r
- canonical/cisco catalyst c9500-12q
- canonical/cisco catalyst c9500-16x
- canonical/cisco catalyst c9500-24q
- canonical/cisco catalyst c9500-24y4c
- canonical/cisco catalyst c9500-32c
- canonical/cisco catalyst c9500-32qc
- canonical/cisco catalyst c9500-40x
- canonical/cisco catalyst c9500-48y4c
- canonical/cisco csr 1000v
- canonical/cisco ws-c3650-12x48uq
- canonical/cisco ws-c3650-12x48ur
- canonical/cisco ws-c3650-12x48uz
- canonical/cisco ws-c3650-24pd
- canonical/cisco ws-c3650-24pdm
- canonical/cisco ws-c3650-24ps
- canonical/cisco ws-c3650-24td
- canonical/cisco ws-c3650-24ts
- canonical/cisco ws-c3650-48fd
- canonical/cisco ws-c3650-48fq
- canonical/cisco ws-c3650-48fqm
- canonical/cisco ws-c3650-48fs
- canonical/cisco ws-c3650-48pd
- canonical/cisco ws-c3650-48pq
- canonical/cisco ws-c3650-48ps
- canonical/cisco ws-c3650-48td
- canonical/cisco ws-c3650-48tq
- canonical/cisco ws-c3650-48ts
- canonical/cisco ws-c3650-8x24uq
- canonical/cisco ws-c3850
- canonical/cisco ws-c3850-12s
- canonical/cisco ws-c3850-12x48u
- canonical/cisco ws-c3850-12xs
- canonical/cisco ws-c3850-24p
- canonical/cisco ws-c3850-24s
- canonical/cisco ws-c3850-24t
- canonical/cisco ws-c3850-24u
- canonical/cisco ws-c3850-24xs
- canonical/cisco ws-c3850-24xu
- canonical/cisco ws-c3850-48f
- canonical/cisco ws-c3850-48p
- canonical/cisco ws-c3850-48t
- canonical/cisco ws-c3850-48u
- canonical/cisco ws-c3850-48xs