PT-2021-2445 · Cisco · Cisco Ios Xe Wireless Controller+1

Published 2021-03-24 · Updated 2021-07-13 · CVE-2021-1373

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family Wireless Controllers (affected versions not specified)

Description: A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of an affected device. The vulnerability is due to insufficient validation of CAPWAP packets. An attacker could exploit this vulnerability by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition.

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

DoS

Buffer Over-read

Weakness Enumeration

CWE-126

Related Identifiers

BDU:2021-01810

CVE-2021-1373

Affected Products

Cisco Ios Xe Wireless Controller

Cisco Ios Xe

References · 7

• https://safe-surf.ru/specialists/bulletins-nkcki/663953 · Security Note
• https://bdu.fstec.ru/vul/2021-01810 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-capwap-dos-2OA3JgKS · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-1373 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1373 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-capwap-dos-2OA3JgKS · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2021032920 · Note