An issue has recently been discovered in Arista EOS where the incorrect use of EOS's AAA API’s by the OpenConfig and TerminAttr agents could result in unrestricted access to the device for local users with nopassword configuration.
CVE-2021-28500

9.1CRITICAL

Key Information:

Vendor

Arista Networks

Status
Arista Eos
Vendor
CVE Published:
14 January 2022

What is CVE-2021-28500?

An issue has recently been discovered in Arista EOS where the incorrect use of EOS's AAA API’s by the OpenConfig and TerminAttr agents could result in unrestricted access to the device for local users with nopassword configuration.

Affected Version(s)

Arista EOS 4.26.1F <= 4.26.0

Arista EOS 4.25.4.M <= 4.25.0

Arista EOS 4.24.6M <= 4.24.6.0

References

https://www.arista.com/en/support/advisories-notices/secu...
x_refsource_MISC

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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