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Cisco XE: CVE-2024-20455: Cisco Catalyst SD-WAN Routers Denial of Service Vulnerability

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Cisco XE: CVE-2024-20455: Cisco Catalyst SD-WAN Routers Denial of Service Vulnerability

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
09/25/2024
Created
09/27/2024
Added
09/26/2024
Modified
11/08/2024

Description

A vulnerability in the process that classifies traffic that is going to the Unified Threat Defense (UTD) component of Cisco IOS XE Software in controller mode could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because UTD improperly handles certain packets as those packets egress an SD-WAN IPsec tunnel. An attacker could exploit this vulnerability by sending crafted traffic through an SD-WAN IPsec tunnel that is configured on an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: SD-WAN tunnels that are configured with Generic Routing Encapsulation (GRE) are not affected by this vulnerability.

Solution(s)

  • cisco-xe-update-latest

References

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