PT-2021-5179 · Cisco · Cisco Embedded Wireless Controller (Ewc)+1

Published 2021-09-22 · Updated 2022-07-08 · CVE-2021-1615

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 Embedded Wireless Controller (EWC) Software for Catalyst Access Points (APs) (affected versions not specified)

Description A vulnerability in the packet processing functionality could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected AP. This vulnerability is due to insufficient buffer allocation. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to exhaust available resources and cause a DoS condition on an affected AP, as well as a DoS condition for client traffic traversing the AP.

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

DoS

Weakness Enumeration

CWE-410

Related Identifiers

BDU:2021-05979

CVE-2021-1615

Affected Products

Cisco Embedded Wireless Controller (Ewc)

Cisco Ios Xe

References · 8

• https://osv.dev/vulnerability/CVE-2021-1615 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05979 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ewc-dos-g6JruHRT · Vendor Advisory
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ewc-dos-g6JruHRT · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1615 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/669672 · Security Note
• https://t.me/cibsecurity/29266 · Telegram Post
• https://t.me/cvenotify/21687 · Telegram Post