Cisco IOS XE Software Web UI Authorization Bypass (cisco-sa-webui-auth-bypass-6j2BYUc7)

medium Nessus Plugin ID 141083
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VPR Score: 5.9


The remote device is missing a vendor-supplied security patch (cisco-sa-webui-auth-bypass-6j2BYUc7)


According to its self-reported version, Cisco IOS XE Software is affected by a Web UI authorization bypass vulnerability due to insufficient authorization of web UI access requests. An authenticated, remote attacker could exploit this vulnerability by sending a crafted HTTP request to the web UI. A successful exploit could allow the attacker to utilize parts of the web UI for which they are not authorized. This could allow a Read-Only user to perform actions of an Admin user. Please see the included Cisco BID and Cisco Security Advisory for more information.


Upgrade to the relevant fixed version referenced in Cisco bug ID CSCva31948

See Also

Plugin Details

Severity: Medium

ID: 141083

File Name: cisco-sa-webui-auth-bypass-6j2BYUc7-iosxe.nasl

Version: 1.14

Type: local

Family: CISCO

Published: 9/30/2020

Updated: 1/8/2021

Dependencies: cisco_ios_xe_version.nasl

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS Score Source: CVE-2020-3400

CVSS v2.0

Base Score: 6.5

Temporal Score: 4.8

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe

Required KB Items: Host/Cisco/IOS-XE/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2020

Vulnerability Publication Date: 9/24/2020

Reference Information

CVE: CVE-2020-3400


CISCO-SA: cisco-sa-webui-auth-bypass-6j2BYUc7

IAVA: 2020-A-0439

CWE: 862