Cisco IOS XE Software Consent Token Bypass (cisco-sa-iosxe-ctbypass-7QHAfHkK)

High Nessus Plugin ID 142053

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VPR Score: 5.9

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco IOS XE Software is affected by a consent token bypass vulnerability. An authenticated, local attacker can exploit this via gaining shell access on an affected device and executing commands on the underlying operating system (OS) with root privileges. Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvq91055

See Also

http://www.nessus.org/u?988a1f23

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvq91055

Plugin Details

Severity: High

ID: 142053

File Name: cisco-sa-iosxe-ctbypass-7QHAfHkK-iosxe.nasl

Version: 1.5

Type: combined

Family: CISCO

Published: 2020/10/29

Updated: 2021/01/08

Dependencies: 67217

Risk Information

Risk Factor: High

VPR Score: 5.9

CVSS Score Source: CVE-2020-3404

CVSS v2.0

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.8

Temporal Score: 6.8

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

Temporal Vector: CVSS:3.0/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: 2020/09/24

Vulnerability Publication Date: 2020/09/24

Reference Information

CVE: CVE-2020-3404

IAVA: 2020-A-0439

CISCO-BUG-ID: CSCvq91055

CISCO-SA: cisco-sa-iosxe-ctbypass-7QHAfHkK

CWE: 863