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CiscoCISCO-SA-WEB-UI-EXNFMCPO

HistorySep 24, 2020 - 4:00 p.m.

Cisco IOS XE Software Web UI Improper Input Validation Vulnerability

2020-09-2416:00:00

tools.cisco.com

cisco

ios xe

web server

authentication

vulnerability

remote attacker

input validation

software updates

EPSS

0.001

Percentile

38.6%

JSON

A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device.

The vulnerability is due to insufficient input validation during authentication. An attacker could exploit this vulnerability by entering unexpected characters during a valid authentication. A successful exploit could allow the attacker to crash the web server on the device, which must be manually recovered by disabling and re-enabling the web server.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-WEB-UI-exNFmcPO [“https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-WEB-UI-exNFmcPO”]

Affected configurations

Vulners

Node

ciscocisco_ios_xe_softwareMatch16.3

ciscocisco_ios_xe_softwareMatch16.4

ciscocisco_ios_xe_softwareMatch16.5

ciscocisco_ios_xe_softwareMatch16.6

ciscocisco_ios_xe_softwareMatch16.7

ciscocisco_ios_xe_softwareMatch16.8

ciscocisco_ios_xe_softwareMatch16.9

ciscocisco_ios_xe_softwareMatch16.10

ciscocisco_ios_xe_softwareMatch16.11

ciscocisco_ios_xe_softwareMatch16.12

ciscocisco_ios_xe_softwareMatch17.2

ciscocisco_ios_xe_softwareMatch16.3.2

ciscocisco_ios_xe_softwareMatch16.3.3

ciscocisco_ios_xe_softwareMatch16.3.4

ciscocisco_ios_xe_softwareMatch16.3.5

ciscocisco_ios_xe_softwareMatch16.3.5b

ciscocisco_ios_xe_softwareMatch16.3.6

ciscocisco_ios_xe_softwareMatch16.3.7

ciscocisco_ios_xe_softwareMatch16.3.8

ciscocisco_ios_xe_softwareMatch16.3.9

ciscocisco_ios_xe_softwareMatch16.3.10

ciscocisco_ios_xe_softwareMatch16.4.1

ciscocisco_ios_xe_softwareMatch16.4.2

ciscocisco_ios_xe_softwareMatch16.4.3

ciscocisco_ios_xe_softwareMatch16.5.1

ciscocisco_ios_xe_softwareMatch16.5.1a

ciscocisco_ios_xe_softwareMatch16.5.1b

ciscocisco_ios_xe_softwareMatch16.5.2

ciscocisco_ios_xe_softwareMatch16.5.3

ciscocisco_ios_xe_softwareMatch16.6.1

ciscocisco_ios_xe_softwareMatch16.6.2

ciscocisco_ios_xe_softwareMatch16.6.3

ciscocisco_ios_xe_softwareMatch16.6.4

ciscocisco_ios_xe_softwareMatch16.6.5

ciscocisco_ios_xe_softwareMatch16.6.4s

ciscocisco_ios_xe_softwareMatch16.6.4a

ciscocisco_ios_xe_softwareMatch16.6.5a

ciscocisco_ios_xe_softwareMatch16.6.6

ciscocisco_ios_xe_softwareMatch16.6.5b

ciscocisco_ios_xe_softwareMatch16.6.7

ciscocisco_ios_xe_softwareMatch16.6.7a

ciscocisco_ios_xe_softwareMatch16.6.8

ciscocisco_ios_xe_softwareMatch16.7.1

ciscocisco_ios_xe_softwareMatch16.7.1a

ciscocisco_ios_xe_softwareMatch16.7.1b

ciscocisco_ios_xe_softwareMatch16.7.2

ciscocisco_ios_xe_softwareMatch16.7.3

ciscocisco_ios_xe_softwareMatch16.7.4

ciscocisco_ios_xe_softwareMatch16.8.1

ciscocisco_ios_xe_softwareMatch16.8.1a

ciscocisco_ios_xe_softwareMatch16.8.1b

ciscocisco_ios_xe_softwareMatch16.8.1s

ciscocisco_ios_xe_softwareMatch16.8.1c

ciscocisco_ios_xe_softwareMatch16.8.1d

ciscocisco_ios_xe_softwareMatch16.8.2

ciscocisco_ios_xe_softwareMatch16.8.1e

ciscocisco_ios_xe_softwareMatch16.8.3

ciscocisco_ios_xe_softwareMatch16.9.1

ciscocisco_ios_xe_softwareMatch16.9.2

ciscocisco_ios_xe_softwareMatch16.9.1a

ciscocisco_ios_xe_softwareMatch16.9.1b

ciscocisco_ios_xe_softwareMatch16.9.1s

ciscocisco_ios_xe_softwareMatch16.9.1c

ciscocisco_ios_xe_softwareMatch16.9.1d

ciscocisco_ios_xe_softwareMatch16.9.3

ciscocisco_ios_xe_softwareMatch16.9.2a

ciscocisco_ios_xe_softwareMatch16.9.2s

ciscocisco_ios_xe_softwareMatch16.9.3h

ciscocisco_ios_xe_softwareMatch16.9.4

ciscocisco_ios_xe_softwareMatch16.9.3s

ciscocisco_ios_xe_softwareMatch16.9.3a

ciscocisco_ios_xe_softwareMatch16.9.4c

ciscocisco_ios_xe_softwareMatch16.9.5

ciscocisco_ios_xe_softwareMatch16.9.5f

ciscocisco_ios_xe_softwareMatch16.10.1

ciscocisco_ios_xe_softwareMatch16.10.1a

ciscocisco_ios_xe_softwareMatch16.10.1b

ciscocisco_ios_xe_softwareMatch16.10.1s

ciscocisco_ios_xe_softwareMatch16.10.1c

ciscocisco_ios_xe_softwareMatch16.10.1e

ciscocisco_ios_xe_softwareMatch16.10.1d

ciscocisco_ios_xe_softwareMatch16.10.2

ciscocisco_ios_xe_softwareMatch16.10.1f

ciscocisco_ios_xe_softwareMatch16.10.1g

ciscocisco_ios_xe_softwareMatch16.10.3

ciscocisco_ios_xe_softwareMatch16.11.1

ciscocisco_ios_xe_softwareMatch16.11.1a

ciscocisco_ios_xe_softwareMatch16.11.1b

ciscocisco_ios_xe_softwareMatch16.11.2

ciscocisco_ios_xe_softwareMatch16.11.1s

ciscocisco_ios_xe_softwareMatch16.11.1c

ciscocisco_ios_xe_softwareMatch16.12.1

ciscocisco_ios_xe_softwareMatch16.12.1s

ciscocisco_ios_xe_softwareMatch16.12.1a

ciscocisco_ios_xe_softwareMatch16.12.1c

ciscocisco_ios_xe_softwareMatch16.12.1w

ciscocisco_ios_xe_softwareMatch16.12.1y

ciscocisco_ios_xe_softwareMatch16.12.1x

ciscocisco_ios_xe_softwareMatch16.12.1t

ciscocisco_ios_xe_softwareMatch17.2.1v

VendorProductVersionCPE
ciscocisco_ios_xe_software16.3cpe:2.3:a:cisco:cisco_ios_xe_software:16.3:*:*:*:*:*:*:*
ciscocisco_ios_xe_software16.4cpe:2.3:a:cisco:cisco_ios_xe_software:16.4:*:*:*:*:*:*:*
ciscocisco_ios_xe_software16.5cpe:2.3:a:cisco:cisco_ios_xe_software:16.5:*:*:*:*:*:*:*
ciscocisco_ios_xe_software16.6cpe:2.3:a:cisco:cisco_ios_xe_software:16.6:*:*:*:*:*:*:*
ciscocisco_ios_xe_software16.7cpe:2.3:a:cisco:cisco_ios_xe_software:16.7:*:*:*:*:*:*:*
ciscocisco_ios_xe_software16.8cpe:2.3:a:cisco:cisco_ios_xe_software:16.8:*:*:*:*:*:*:*
ciscocisco_ios_xe_software16.9cpe:2.3:a:cisco:cisco_ios_xe_software:16.9:*:*:*:*:*:*:*
ciscocisco_ios_xe_software16.10cpe:2.3:a:cisco:cisco_ios_xe_software:16.10:*:*:*:*:*:*:*
ciscocisco_ios_xe_software16.11cpe:2.3:a:cisco:cisco_ios_xe_software:16.11:*:*:*:*:*:*:*
ciscocisco_ios_xe_software16.12cpe:2.3:a:cisco:cisco_ios_xe_software:16.12:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	cisco_ios_xe_software	16.3	cpe:2.3:a:cisco:cisco_ios_xe_software:16.3:::::::*
cisco	cisco_ios_xe_software	16.4	cpe:2.3:a:cisco:cisco_ios_xe_software:16.4:::::::*
cisco	cisco_ios_xe_software	16.5	cpe:2.3:a:cisco:cisco_ios_xe_software:16.5:::::::*
cisco	cisco_ios_xe_software	16.6	cpe:2.3:a:cisco:cisco_ios_xe_software:16.6:::::::*
cisco	cisco_ios_xe_software	16.7	cpe:2.3:a:cisco:cisco_ios_xe_software:16.7:::::::*
cisco	cisco_ios_xe_software	16.8	cpe:2.3:a:cisco:cisco_ios_xe_software:16.8:::::::*
cisco	cisco_ios_xe_software	16.9	cpe:2.3:a:cisco:cisco_ios_xe_software:16.9:::::::*
cisco	cisco_ios_xe_software	16.10	cpe:2.3:a:cisco:cisco_ios_xe_software:16.10:::::::*
cisco	cisco_ios_xe_software	16.11	cpe:2.3:a:cisco:cisco_ios_xe_software:16.11:::::::*
cisco	cisco_ios_xe_software	16.12	cpe:2.3:a:cisco:cisco_ios_xe_software:16.12:::::::*