CVE-2020-3404

  1. Reconshell
  2. Vulnerabilities (CVE)
  3. CVE-2020-3404
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.

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ctbypass-7QHAfHkK Vendor Advisory
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Configurations

Configuration 1 (hide)

AND
cpe:2.3:a:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*
OR cpe:2.3:h:cisco:asr1001-hx:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr1001-hx-rf:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr1001-x-rf:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr1001-x-ws:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr1002-hx:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr1002-hx-rf:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr1002-hx-ws:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr1002-x-rf:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr1002-x-ws:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1000-x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1001:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1002:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1013:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1001-x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-l:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-l-c:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-l-f:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-40:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-80:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200-24p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200-24t:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200-48p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200-48t:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-24p-4g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-24p-4x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-24pxg-2y:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-24pxg-4x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-24t-4g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-24t-4x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:integrated_services_router_4451:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:integrated_services_router_4431:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300-24t:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300-24u:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300-24ux:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300-48p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300-48s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300-48t:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300-48u:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300-48un:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300-48uxm:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300l-24p-4g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300l-24p-4x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300l-24t-4g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300l-24t-4x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300l-48p-4g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300l-48p-4x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300l-48t-4g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300l-48t-4x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9500-12q:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9500-16x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9500-24q:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9500-24y4c:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9500-32c:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9500-32qc:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9500-40x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9500-48y4c:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-48p-4g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-48p-4x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-48pxg-2y:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-48pxg-4x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-48t-4g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-48t-4x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300-24p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9300-24s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr1100-4g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9404r:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9407r:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9410r:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr1100:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:integrated_services_router_4221:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:integrated_services_router_4331:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:integrated_services_router_4461:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:csr_1000v:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1111x-8p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-8p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-4p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1101-4p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1109-4p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1109-2p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr1100-6g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr1100-4gltena:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr1100-4gltegb:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1101:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1109:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_111x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1111x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1120:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1160:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr1100-lte:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-24ts:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48ts:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-24ps:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48ps:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48fs:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-24td:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48td:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-24pd:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-24pdm:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48pd:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48fd:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48tq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48pq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48fqm:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48fq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-8x24uq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-12x48uq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-12x48ur:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-12x48uz:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24t:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-48t:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-48p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-48f:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24u:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-48u:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24xu:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-12x48u:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-12s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-12xs:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24xs:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-48xs:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850:-:*:*:*:*:*:*:*
Information

Published : 2020-09-24 11:15

Updated : 2020-10-06 09:06

NVD link : CVE-2020-3404

Mitre link : CVE-2020-3404

JSON object : View

CWE
CWE-863

Incorrect Authorization

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Products Affected

cisco

  • catalyst_c9300l-48p-4x
  • catalyst_c9300-48p
  • catalyst_c9300l-24t-4g
  • ws-c3650-24ps
  • catalyst_c9200-48t
  • ws-c3650-12x48uz
  • catalyst_c9500-48y4c
  • catalyst_c9200l-48t-4x
  • isr_1111x-8p
  • isr_1100-8p
  • isr1100-6g
  • asr_1006
  • catalyst_c9300-24t
  • ws-c3650-24pdm
  • asr1002-x-ws
  • ws-c3850-48t
  • asr_1001
  • asr_1000-x
  • catalyst_c9300l-48p-4g
  • ws-c3650-24td
  • asr1001-x-rf
  • isr_1100-4p
  • ws-c3650-48ps
  • catalyst_c9300-48s
  • catalyst_c9300-24p
  • catalyst_c9500-24q
  • asr1002-hx
  • catalyst_c9300l-24t-4x
  • isr_1101
  • catalyst_c9200l-24pxg-4x
  • catalyst_9800-l-f
  • catalyst_9800-80
  • catalyst_c9200l-24p-4g
  • ws-c3850-48f
  • catalyst_c9500-32qc
  • isr1100-4gltegb
  • catalyst_c9500-32c
  • asr1002-hx-rf
  • catalyst_c9500-24y4c
  • isr1100-4gltena
  • catalyst_c9200l-48p-4x
  • ws-c3850-48u
  • catalyst_c9200l-24t-4g
  • ws-c3650-48fqm
  • catalyst_c9200-24t
  • catalyst_9800-cl
  • catalyst_c9200l-48pxg-2y
  • catalyst_c9300-48uxm
  • catalyst_c9300-24ux
  • catalyst_9800-l
  • ws-c3650-48fd
  • integrated_services_router_4331
  • catalyst_9800-l-c
  • catalyst_c9300l-24p-4g
  • catalyst_9800-40
  • catalyst_c9200-24p
  • catalyst_c9300-48u
  • catalyst_c9200l-24t-4x
  • asr1002-x-rf
  • isr_1109-4p
  • catalyst_c9300-48t
  • isr_111x
  • ws-c3850-12xs
  • asr_1002-x
  • catalyst_c9300-24u
  • catalyst_c9300-48un
  • ws-c3850-24u
  • csr_1000v
  • integrated_services_router_4451
  • catalyst_c9500-40x
  • catalyst_c9300l-48t-4g
  • ws-c3850-48xs
  • ws-c3650-24ts
  • integrated_services_router_4461
  • catalyst_c9200l-24p-4x
  • catalyst_c9300-24s
  • asr1001-x-ws
  • catalyst_c9200l-48t-4g
  • ws-c3650-48td
  • ws-c3650-12x48uq
  • asr1002-hx-ws
  • asr_1013
  • ws-c3850-24p
  • catalyst_c9500-16x
  • ws-c3650-48tq
  • ws-c3650-24pd
  • ws-c3850-48p
  • isr1100
  • catalyst_c9200l-24pxg-2y
  • isr_1101-4p
  • integrated_services_router_4221
  • ws-c3850
  • asr1001-hx
  • ws-c3650-48fq
  • isr1100-4g
  • isr_1109
  • catalyst_c9407r
  • isr1100-lte
  • ws-c3650-12x48ur
  • isr_1111x
  • ws-c3850-24xu
  • integrated_services_router_4431
  • ws-c3850-12x48u
  • catalyst_c9404r
  • isr_1109-2p
  • ws-c3650-48pq
  • asr_1002
  • ios_xe
  • ws-c3850-12s
  • catalyst_c9300l-48t-4x
  • ws-c3650-8x24uq
  • ws-c3650-48ts
  • asr_1004
  • ws-c3850-24s
  • ws-c3650-48pd
  • isr_1160
  • isr_1120
  • ws-c3850-24xs
  • ws-c3650-48fs
  • ws-c3850-24t
  • catalyst_c9300l-24p-4x
  • catalyst_c9200-48p
  • asr1001-hx-rf
  • catalyst_c9500-12q
  • catalyst_c9410r
  • asr_1001-x
  • catalyst_c9200l-48pxg-4x
  • catalyst_c9200l-48p-4g