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7.4высокая

CVE-2024-20303

Описание

A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper management of mDNS client entries. An attacker could exploit this vulnerability by connecting to the wireless network and sending a continuous stream of specific mDNS packets. A successful exploit could allow the attacker to cause the wireless controller to have high CPU utilization, which could lead to access points (APs) losing their connection to the controller and result in a DoS condition.

Затрагиваемое ПО
Cisco Ios xeCisco Catalyst 9800-cl wireless controllers for cloudCisco Catalyst 9105axiCisco Catalyst 9115axeCisco Catalyst 9115axiCisco Catalyst 9117axiCisco Catalyst 9120axeCisco Catalyst 9120axiCisco Catalyst 9120axpCisco Catalyst 9130axeCisco Catalyst 9130axiCisco Catalyst 9800-40Cisco Catalyst 9800-80Cisco Catalyst 9800-lCisco Catalyst cw9800h1Cisco Catalyst cw9800h2Cisco Catalyst cw9800m
CVSS
Балл7.4 — высокая
ВекторCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Источники
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-mdns-dos-4hv6pBGfhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-mdns-dos-4hv6pBGf