CVE-2024-20465: Medium severity cisco ios vulnerability

Published Sep 25, 2024

Updated

A vulnerability in the access control list (ACL) programming of Cisco IOS Software running on Cisco Industrial Ethernet 4000, 4010, and 5000 Series Switches could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to the incorrect handling of IPv4 ACLs on switched virtual interfaces when an administrator enables and disables Resilient Ethernet Protocol (REP). An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass an ACL on the affected device.

Affected Software

4 affected components

Cisco IOS=15.2\(8\)e2

Cisco IOS=15.2\(8\)e3

Cisco IOS=15.2\(8\)e4

Cisco IOS=15.2\(8\)e5

Event History

Sep 25, 2024

CVE Published

via MITRE·04:29 PM

Data Sourced

via MITRE·04:29 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·05:15 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2024-20465?

CVE-2024-20465 has been assigned a high severity level due to its potential to allow unauthorized access.

How do I fix CVE-2024-20465?

To mitigate CVE-2024-20465, upgrade your Cisco IOS Software to the latest version that addresses this vulnerability.

What devices are affected by CVE-2024-20465?

CVE-2024-20465 affects Cisco Industrial Ethernet 4000, 4010, and 5000 Series Switches running specific versions of Cisco IOS.

Can CVE-2024-20465 be exploited remotely?

Yes, CVE-2024-20465 can be exploited by unauthenticated remote attackers.

What causes the vulnerability in CVE-2024-20465?

CVE-2024-20465 is caused by the incorrect handling of IPv4 ACLs in the access control list programming.