QID 317437

QID 317437: Cisco Internetwork Operating System (IOS) XE Software Dynamic Host Configuration Protocol (DHCP) Snooping with Endpoint Analytics Denial of Service (DoS) Vulnerability (cisco-sa-dhcp-dos-T3CXPO9z)

A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition.

Affected Products:

Cisco IOS XE Software and have DHCP snooping and endpoint analytics enabled: Catalyst 9000 Series Switches
DNA Traffic Telemetry Appliance

QID Detection Logic (Authenticated):
The check matches Cisco IOS XE version retrieved via Unix Auth using "show version" command.
QID Detection Logic (Unauthenticated):
The check matches Cisco IOS XE version retrieved via SNMP or TCP/IP Fingerprint or NTP or Telnet.

A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

CVSS V3 rated as Critical - 8.6 severity.

CVSS V2 rated as High - 7.5 severity.

Solution

Customers are advised to refer to cisco-sa-dhcp-dos-T3CXPO9z for more information.

Vendor References

cisco-sa-dhcp-dos-T3CXPO9z - sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dhcp-dos-T3CXPO9z

CVEs related to QID 317437

CVE-2024-20259 |

Software Advisories

Advisory ID	Software	Component	Link
cisco-sa-dhcp-dos-T3CXPO9z			sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dhcp-dos-T3CXPO9z

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