CVE-2021-28503: The impact of this vulnerability is that Arista's EOS eAPI may skip re-evaluating user credentials when certificate based authentication is used, which allows…

PriorityP260critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

0.73%

49.8th percentile

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

Affected

9 ranges

Vendor	Product	Version range	Fixed in
arista	eos	4.22 – 4.22.9m	—
arista	eos	4.23 – 4.23.9	—
arista	eos	4.24 – 4.24.7	—
arista	eos	4.25 – 4.25.5	—
arista	eos	4.26 – 4.26.2	—
arista_networks	arista_eos	>= EOS-4.23 < EOS-4.23.10	EOS-4.23.10
arista_networks	arista_eos	>= EOS-4.24 < EOS-4.24.8	EOS-4.24.8
arista_networks	arista_eos	>= EOS-4.25 < EOS-4.25.6	EOS-4.25.6
arista_networks	arista_eos	>= EOS-4.26 < EOS-4.26.3	EOS-4.26.3

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

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