SB2025051726 - Incorrect ACL usage in Arista EOS with 802.1x



SB2025051726 - Incorrect ACL usage in Arista EOS with 802.1x

Published: May 17, 2025

Security Bulletin ID SB2025051726
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Protection Mechanism Failure (CVE-ID: CVE-2024-8000)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an error when handling dynamic ACLs when running Arista EOS with 802.1x. Under certain circumstances a dynamic ACL can be sent by the AAA server resulting in only the first line of the ACL being installed after an Accelerated Software Upgrade (ASU) restart.


Remediation

Install update from vendor's website.