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HIGH · 7.4

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 remote attackers to access the device via...

Vulnerability Description

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.

CVSS Score

7.4

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
AristaEos>= 4.22, <= 4.22.9m

Related Weaknesses (CWE)

CWE-305CWE-287

References

FAQ

What is CVE-2021-28503?

CVE-2021-28503 is a vulnerability with a CVSS score of 7.4 (HIGH). 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...

How severe is CVE-2021-28503?

CVE-2021-28503 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-28503?

Check the references section above for vendor advisories and patch information. Affected products include: Arista Eos.