Cisco IOS XE Software Wireless Controller for the Catalyst 9000 Family CAPWAP DoS (cisco-sa-capwap-dos-TPdNTdyq)

high Nessus Plugin ID 145692

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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 for Cisco Catalyst 9800 Series Wireless Controllers, Catalyst 9300, 9400, and 9500 Series Switches, and Catalyst 9100 Access Points are affected by multiple denial of service (DoS) vulnerabilities due to insufficient validation of CAPWAP packets. An unauthenticated, adjacent attacker could exploit these vulnerabilities by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to cause a crash and reload of the device, resulting in a DoS condition on the affected device.

Please see the included Cisco BID and Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvr51353, CSCvr52613, CSCvr76792, CSCvr77049, CSCvr77764, CSCvr84445, CSCvr91229

Plugin Details

Severity: High

ID: 145692

File Name: cisco-sa-capwap-dos-TPdNTdyq.nasl

Version: 1.4

Type: combined

Family: CISCO

Published: 1/29/2021

Updated: 1/25/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2020-3497

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:A/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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2020

Vulnerability Publication Date: 9/24/2020

Reference Information

CVE: CVE-2020-3486, CVE-2020-3487, CVE-2020-3488, CVE-2020-3489, CVE-2020-3493, CVE-2020-3494, CVE-2020-3497

CWE: 20

CISCO-SA: cisco-sa-capwap-dos-TPdNTdyq

IAVA: 2020-A-0439-S

CISCO-BUG-ID: CSCvr51353, CSCvr52613, CSCvr76792, CSCvr77049, CSCvr77764, CSCvr84445, CSCvr91229

Detections

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