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Cisco XE: CVE-2024-20312: Cisco IOS and IOS XE Software Intermediate System-to-Intermediate System Denial of Service Vulnerability

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Cisco XE: CVE-2024-20312: Cisco IOS and IOS XE Software Intermediate System-to-Intermediate System Denial of Service Vulnerability

Severity
6
CVSS
(AV:A/AC:L/Au:N/C:N/I:N/A:C)
Published
03/27/2024
Created
03/29/2024
Added
03/28/2024
Modified
11/13/2024

Description

A vulnerability in the Intermediate System-to-Intermediate System (IS-IS) protocol of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation when parsing an ingress IS-IS packet. An attacker could exploit this vulnerability by sending a crafted IS-IS packet to an affected device after forming an adjacency. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. Note: The IS-IS protocol is a routing protocol. To exploit this vulnerability, an attacker must be Layer 2-adjacent to the affected device and have formed an adjacency.

Solution(s)

  • cisco-xe-update-latest

References

  • https://attackerkb.com/topics/cve-2024-20312
  • CVE - 2024-20312
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-isis-sGjyOUHX
  • cisco-sa-isis-sGjyOUHX
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