Cisco Wireless LAN Controller CAPWAP DoS (cisco-sa-wlc-capwap-dos-Y2sD9uEw)

high Nessus Plugin ID 139036

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, the Control and Provisioning of Wireless Access Points (CAPWAP) protocol handler of Cisco Wireless LAN Controller (WLC) is affected by a vulnerability due to insufficient validation of CAPWAP packets. An unauthenticated, remote attacker can exploit this, by sending a malformed CAPWAP packet to an affected device, in order to cause a denial of service (DoS).

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 CSCvq59667

Plugin Details

Severity: High

ID: 139036

File Name: cisco-sa-wlc-capwap-dos-Y2sD9uEw.nasl

Version: 1.9

Type: combined

Family: CISCO

Published: 7/28/2020

Updated: 9/28/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-3262

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

Required KB Items: Host/Cisco/WLC/Version, Host/Cisco/WLC/Port

Exploit Ease: No known exploits are available

Patch Publication Date: 4/15/2020

Vulnerability Publication Date: 4/15/2020

Reference Information

CVE: CVE-2020-3262

CWE: 20

CISCO-SA: cisco-sa-wlc-capwap-dos-Y2sD9uEw

IAVA: 2019-A-0424-S

CISCO-BUG-ID: CSCvq59667

Detections

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