CVE Vulnerabilities

CVE-2021-28503

Improper Authentication

Published: Feb 04, 2022 | Modified: Aug 02, 2022
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

The impact of this vulnerability is that Aristas EOS eAPI may skip re-evaluating user credentials when certificate based authentication is used, which allows remote attackers to access the device via eAPI.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

Name Vendor Start Version End Version
Eos Arista 4.24 4.24.7
Eos Arista 4.23 4.23.9
Eos Arista 4.26 4.26.2
Eos Arista 4.25 4.25.5
Eos Arista 4.22 4.22.9m

Potential Mitigations

References