CVE-2021-28509 - CVE House
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Status published Medium CVE-2021-28509

TerminAttr streams MACsec sensitive data in clear text to other authorized users in CVP

Vulnerability Description

This advisory documents the impact of an internally found vulnerability in Arista EOS state streaming telemetry agent TerminAttr and OpenConfig transport protocols. The impact of this vulnerability is that, in certain conditions, TerminAttr might leak MACsec sensitive data in clear text in CVP to other authorized users, which could cause MACsec traffic to be decrypted or modified by other authorized users on the device.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Arista Networks

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Affected Software

Arista EOS, Arista TerminAttr
Vulnerable Versions:
4.23, 4.24, 4.25, 4.26, 4.27, v1.10, v1.16, v1.19

Timeline

Official Publish: May 26th, 2022
Last Modified: September 16th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.