Vulnerability · Published May 26, 2022 · Assigned by Arista

CVE-2021-28508TerminAttr streams IPsec sensitive data in clear text to other authorized users in CVP

Medium 6.8

In plain English

A medium-severity security flaw in Arista EOS from Arista Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.5%top 55.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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 IPsec sensitive data in clear text in CVP to other authorized users, which could cause IPsec traffic to be decrypted or modified by other authorized users on the device.

Affected products (as reported)

VendorProductVersions
Arista Networks Arista EOS 4.23 – through 4.23.114.24 – through 4.24.94.25 – through 4.25.74.26 – through 4.26.54.27 – through 4.27.3
Arista Networks Arista TerminAttr v1.10 – through v1.10.10v1.16 – through v1.16.7v1.18 – through v1.18.1

Weakness: CWE-255 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

References