CVE-2021-28503

CWE-305CWE-287 — Improper Authentication3 documents3 sources
Severity
9.8CRITICAL
EPSS
0.4%
top 39.20%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Arista Networks Arista EOSArista EOS
Timeline
PublishedFeb 4
Latest updateFeb 10

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 vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:HExploitability: 2.2 | Impact: 5.2

Affected Packages2 packages

▶CVEListV5arista_networks/arista_eosEOS-4.23 — EOS-4.23.10+3
▶NVDarista/eos4.22 — 4.22.9m+4

Patches

Patch: www.arista.com ↗Patch: www.arista.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-mvw4-rrm9-fqfc: The impact of this vulnerability is that Arista's EOS eAPI may skip re-evaluating user credentials when certificate based authentication is used, whic↗2022-02-10
▶
CVEList
In Arista's EOS software affected releases, eAPI might skip re-evaluating user credentials when certificate based authentication is used, which allows remote attackers to access the device via eAPI.↗2022-02-04
▶