Cisco IOS XE SD-WAN DoS (cisco-sa-sdwan-dosmulti-48jJuEUP)

high Nessus Plugin ID 145707

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco IOS XE SD-WAN Software is affected by a denial of service (DoS) vulnerability in the UDP connection response due the presence of a null dereference in vDaemon. An unauthenticated, remote attacker can exploit this, by sending crafted traffic to an affected device, to cause a DoS condition.

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 CSCvt11523.

See Also

http://www.nessus.org/u?05f6f0f0

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvt11523

Plugin Details

Severity: High

ID: 145707

File Name: cisco-sa-sdwan-dosmulti-48jJuEUP-iosxe.nasl

Version: 1.4

Type: combined

Family: CISCO

Published: 2/1/2021

Updated: 2/2/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2021-1274

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe, cpe:/o:cisco:ios_xe_sd-wan

Required KB Items: Host/Cisco/SDWAN/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 1/20/2021

Vulnerability Publication Date: 1/20/2021

Reference Information

CVE: CVE-2021-1274

CWE: 119

CISCO-SA: cisco-sa-sdwan-dosmulti-48jJuEUP

IAVA: 2021-A-0045

CISCO-BUG-ID: CSCvt11523