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Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst 9100 Series Access Points UDP Processing DoS (cisco-sa-wlc-udp-dos-XDyEwhNz)

high Nessus Plugin ID 165700

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

A vulnerability in the UDP processing functionality of Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst 9100 Series Access Points could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to the improper processing of UDP datagrams. An attacker could exploit this vulnerability by sending malicious UDP datagrams to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in 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 CSCwb18118

See Also

http://www.nessus.org/u?7e8c155a

https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74745

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwb18118

Plugin Details

Severity: High

ID: 165700

File Name: cisco-sa-wlc-udp-dos-XDyEwhNz-iosxe.nasl

Version: 1.6

Type: combined

Family: CISCO

Published: 10/5/2022

Updated: 3/23/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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-2022-20848

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2022

Vulnerability Publication Date: 9/28/2022

Reference Information

CVE: CVE-2022-20848