Rapid7 Vulnerability & Exploit Database

Cisco IOS-XR: CVE-2023-20233: Cisco IOS XR Software Connectivity Fault Management Denial of Service Vulnerability

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Cisco IOS-XR: CVE-2023-20233: Cisco IOS XR Software Connectivity Fault Management Denial of Service Vulnerability

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
09/13/2023
Created
09/14/2023
Added
09/14/2023
Modified
07/16/2024

Description

A vulnerability in the Connectivity Fault Management (CFM) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to incorrect processing of invalid continuity check messages (CCMs). An attacker could exploit this vulnerability by sending crafted CCMs to an affected device. A successful exploit could allow the attacker to cause the CFM service to crash when a user displays information about maintenance end points (MEPs) for peer MEPs on an affected device.

Solution(s)

  • update-xros

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;