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

high Nessus Plugin ID 142053

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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: 1.6

Type: combined

Family: CISCO

Published: 10/29/2020

Updated: 9/28/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2020-3404

CVSS v3

Risk Factor: High

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: 9/24/2020

Vulnerability Publication Date: 9/24/2020

Reference Information

CVE: CVE-2020-3404

CWE: 863

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

IAVA: 2020-A-0439-S

CISCO-BUG-ID: CSCvq91055