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CVE-2021-28503

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.

Published: Feb 4, 2022Updated: Nov 21, 2024 Sources: CVE List NVDCWE-305
7.4HIGH
NVD MITRE
EPSS Score
0.7%
Top 49.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-305CWE-287

Affected Products

Arista Networks
commercial·US
Arista EOSOn-premNetwork Device
Networking Infrastructure / router-switch
arista
commercial·US
eos
Networking Infrastructure

Exploitability

Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://www.arista.com/en/support/advisories-notices/security-advisories/13605-security-advisory-0072
arista.com

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