SB2025051716 - 802.1x authentication bypass in Arista EOS
Published: May 17, 2025
Security Bulletin ID
SB2025051716
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper authentication (CVE-ID: CVE-2024-6858)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in the 802.1X mode. A remote attacker on the local network can access a switch port if there exists an EAPOL capable device in the fallback VLAN.
Remediation
Install update from vendor's website.