CVE-2024-20303
published 2024-03-27CVE-2024-20303: A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated…
PriorityP336high7.4CVSS 3.1
AVAACLPRNUINSCCNINAH
EPSS
0.32%
24.5th percentile
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.
Affected
137 ranges· showing 25
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CVSS provenance
nvdv3.17.4HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
vendor_cisco7.4HIGH
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Cisco
Cisco IOS XE Software for Wireless LAN Controllers Multicast DNS Denial of Service Vulnerability
vendor_cisco·2024-03-27·CVSS 7.4
CVE-2024-20303 [HIGH] CWE-459 Cisco IOS XE Software for Wireless LAN Controllers Multicast DNS Denial of Service Vulnerability
Cisco IOS XE Software for Wireless LAN Controllers Multicast DNS Denial of Service Vulnerability
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.
Cisco has released software updates that addres
Cisco
Cisco IOS XE Software for Wireless LAN Controllers Multicast DNS Denial of Service Vulnerability
vendor_cisco·CVSS 3.1
CVE-2024-20303 Cisco IOS XE Software for Wireless LAN Controllers Multicast DNS Denial of Service Vulnerability
CVE-2024-20303: Cisco IOS XE Software for Wireless LAN Controllers Multicast DNS Denial of Service Vulnerability
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. Cisco has released software update
GHSA
GHSA-jfv4-r4r3-xx7w: A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticate
ghsa_unreviewed·2024-03-27
CVE-2024-20303 [HIGH] CWE-459 GHSA-jfv4-r4r3-xx7w: A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticate
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2024-03-27
Published