CVE-2020-3408

  1. Reconshell
  2. Vulnerabilities (CVE)
  3. CVE-2020-3408
A vulnerability in the Split DNS feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability occurs because the regular expression (regex) engine that is used with the Split DNS feature of affected releases may time out when it processes the DNS name list configuration. An attacker could exploit this vulnerability by trying to resolve an address or hostname that the affected device handles. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

8.6 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

7.8 /10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References
Link Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-splitdns-SPWqpdGW Vendor Advisory
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Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:o:cisco:ios:15.8\(3\)m3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.8\(3\)m3:*:*:*:*:*:*:*
OR cpe:2.3:h:cisco:asr_1002:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1001:-:*:*:*:*:*:*:*
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:integrated_services_router_4451:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:integrated_services_router_4431:-:*:*:*:*:*:*:*
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: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_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:isr_1100-4p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-8p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1111x-8p:-:*:*:*:*:*:*:*
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_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:isr_1101-4p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1109-2p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1109-4p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1000-x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-24t-4g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9200l-24t-4x:-:*:*:*:*:*:*:*
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:catalyst_c9404r:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9407r:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_c9410r:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:csr_1000v:*:*:*:*:*:*:*:*
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:isr1100:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr1100-4g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr1100-4gltegb:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr1100-4gltena:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr1100-6g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr1100-lte:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1101:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1109:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1111x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_111x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1120:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1160:-:*:*:*:*:*:*:*
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-c3650-24pd:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-24pdm:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-24ps:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-24td:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-24ts:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48fd:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48fq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48fqm:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48fs:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48pd:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48pq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48ps:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48td:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48tq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-48ts:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3650-8x24uq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-12s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-12x48u:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-12xs:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24t:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24u:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24xs:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-24xu:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-48f:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-48p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-48t:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-48u:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ws-c3850-48xs:-:*:*:*:*:*:*:*
Information

Published : 2020-09-24 11:15

Updated : 2022-10-27 08:47

NVD link : CVE-2020-3408

Mitre link : CVE-2020-3408

JSON object : View

CWE
CWE-400

Uncontrolled Resource Consumption

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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
  • isr_1111x-8p
  • catalyst_c9200l-48t-4x
  • catalyst_c9500-48y4c
  • 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_9800-80
  • catalyst_9800-l-f
  • 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
  • isr_1109-4p
  • asr1002-x-rf
  • catalyst_c9200l-24t-4x
  • 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
  • ios
  • 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