PT-2020-2891 · Cisco · Cisco Catalyst 9800 Series Wireless Controllers+1

Published 2020-06-03 · Updated 2021-09-17 · CVE-2020-3206

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Cisco Catalyst 9800 Series Wireless Controllers (affected versions not specified)

Description A vulnerability in the handling of IEEE 802.11w Protected Management Frames (PMFs) could allow an unauthenticated, adjacent attacker to terminate a valid user connection to an affected device. The vulnerability exists because the affected software does not properly validate 802.11w disassociation and deauthentication PMFs that it receives. An attacker could exploit this vulnerability by sending a spoofed 802.11w PMF from a valid, authenticated client on a network adjacent to an affected device. A successful exploit could allow the attacker to terminate a single valid user connection to the affected device.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2020-03048

CVE-2020-3206

Affected Products

Cisco Catalyst 9800 Series Wireless Controllers

Cisco Ios Xe

References · 5

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-dos-AnvKvMxR · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-03048 · Security Note
• https://osv.dev/vulnerability/CVE-2020-3206 · Vendor Advisory
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-dos-AnvKvMxR · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3206 · Security Note