CVE-2024-20455

Summary

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.

Affected Software

VendorProductVersion RangeStatus
CiscoCisco IOS XE Software17.1.1affected
CiscoCisco IOS XE Software17.1.1aaffected
CiscoCisco IOS XE Software17.1.1saffected
CiscoCisco IOS XE Software17.1.1taffected
CiscoCisco IOS XE Software17.1.3affected
CiscoCisco IOS XE Software17.2.1affected
CiscoCisco IOS XE Software17.2.1raffected
CiscoCisco IOS XE Software17.2.1aaffected
CiscoCisco IOS XE Software17.2.1vaffected
CiscoCisco IOS XE Software17.2.2affected
CiscoCisco IOS XE Software17.2.3affected
CiscoCisco IOS XE Software17.3.1affected
CiscoCisco IOS XE Software17.3.2affected
CiscoCisco IOS XE Software17.3.3affected
CiscoCisco IOS XE Software17.3.1aaffected
CiscoCisco IOS XE Software17.3.1waffected
CiscoCisco IOS XE Software17.3.2aaffected
CiscoCisco IOS XE Software17.3.1xaffected
CiscoCisco IOS XE Software17.3.1zaffected
CiscoCisco IOS XE Software17.3.4affected
CiscoCisco IOS XE Software17.3.5affected
CiscoCisco IOS XE Software17.3.4aaffected
CiscoCisco IOS XE Software17.3.6affected
CiscoCisco IOS XE Software17.3.4baffected
CiscoCisco IOS XE Software17.3.4caffected
CiscoCisco IOS XE Software17.3.5aaffected
CiscoCisco IOS XE Software17.3.5baffected
CiscoCisco IOS XE Software17.3.7affected
CiscoCisco IOS XE Software17.3.8affected
CiscoCisco IOS XE Software17.3.8aaffected
CiscoCisco IOS XE Software17.4.1affected
CiscoCisco IOS XE Software17.4.2affected
CiscoCisco IOS XE Software17.4.1aaffected
CiscoCisco IOS XE Software17.4.1baffected
CiscoCisco IOS XE Software17.4.2aaffected
CiscoCisco IOS XE Software17.5.1affected
CiscoCisco IOS XE Software17.5.1aaffected
CiscoCisco IOS XE Software17.6.1affected
CiscoCisco IOS XE Software17.6.2affected
CiscoCisco IOS XE Software17.6.1waffected
CiscoCisco IOS XE Software17.6.1aaffected
CiscoCisco IOS XE Software17.6.1xaffected
CiscoCisco IOS XE Software17.6.3affected
CiscoCisco IOS XE Software17.6.1yaffected
CiscoCisco IOS XE Software17.6.1zaffected
CiscoCisco IOS XE Software17.6.3aaffected
CiscoCisco IOS XE Software17.6.4affected
CiscoCisco IOS XE Software17.6.1z1affected
CiscoCisco IOS XE Software17.6.5affected
CiscoCisco IOS XE Software17.6.6affected
CiscoCisco IOS XE Software17.6.6aaffected
CiscoCisco IOS XE Software17.6.5aaffected
CiscoCisco IOS XE Software17.7.1affected
CiscoCisco IOS XE Software17.7.1aaffected
CiscoCisco IOS XE Software17.7.1baffected
CiscoCisco IOS XE Software17.7.2affected
CiscoCisco IOS XE Software17.10.1affected
CiscoCisco IOS XE Software17.10.1aaffected
CiscoCisco IOS XE Software17.10.1baffected
CiscoCisco IOS XE Software17.8.1affected
CiscoCisco IOS XE Software17.8.1aaffected
CiscoCisco IOS XE Software17.9.1affected
CiscoCisco IOS XE Software17.9.1waffected
CiscoCisco IOS XE Software17.9.2affected
CiscoCisco IOS XE Software17.9.1aaffected
CiscoCisco IOS XE Software17.9.1xaffected
CiscoCisco IOS XE Software17.9.1yaffected
CiscoCisco IOS XE Software17.9.3affected
CiscoCisco IOS XE Software17.9.2aaffected
CiscoCisco IOS XE Software17.9.1x1affected
CiscoCisco IOS XE Software17.9.3aaffected
CiscoCisco IOS XE Software17.9.4affected
CiscoCisco IOS XE Software17.9.1y1affected
CiscoCisco IOS XE Software17.9.5affected
CiscoCisco IOS XE Software17.9.4aaffected
CiscoCisco IOS XE Software17.9.5aaffected
CiscoCisco IOS XE Software17.9.5baffected
CiscoCisco IOS XE Software17.11.1affected
CiscoCisco IOS XE Software17.11.1aaffected
CiscoCisco IOS XE Software17.12.1affected
CiscoCisco IOS XE Software17.12.1waffected
CiscoCisco IOS XE Software17.12.1aaffected
CiscoCisco IOS XE Software17.12.2affected
CiscoCisco IOS XE Software17.12.2aaffected
CiscoCisco IOS XE Software17.13.1affected
CiscoCisco IOS XE Software17.13.1aaffected
CiscoCisco IOS XE Software17.11.99SWaffected
CiscoCisco IOS XE Catalyst SD-WAN17.5.1aaffected
CiscoCisco IOS XE Catalyst SD-WAN17.6.1aaffected
CiscoCisco IOS XE Catalyst SD-WAN17.6.2affected
CiscoCisco IOS XE Catalyst SD-WAN17.6.4affected
CiscoCisco IOS XE Catalyst SD-WAN17.7.1aaffected
CiscoCisco IOS XE Catalyst SD-WAN17.9.1aaffected
CiscoCisco IOS XE Catalyst SD-WAN17.9.2aaffected
CiscoCisco IOS XE Catalyst SD-WAN17.9.3aaffected
CiscoCisco IOS XE Catalyst SD-WAN17.9.4affected
CiscoCisco IOS XE Catalyst SD-WAN17.8.1aaffected
CiscoCisco IOS XE Catalyst SD-WAN17.10.1aaffected
CiscoCisco IOS XE Catalyst SD-WAN17.11.1aaffected
CiscoCisco IOS XE Catalyst SD-WAN17.12.1aaffected
CiscoCisco IOS XE Catalyst SD-WAN17.13.1aaffected

Weaknesses

  • CWE-371: State Issues

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References