CVE-2021-28509

CVSS V2 Low 3.6 CVSS V3 Medium 6.1
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.
Overview
  • CVE ID
  • CVE-2021-28509
  • Assigner
  • psirt@arista.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-05-26T20:15:08
  • Last Modified Date
  • 2022-06-09T19:08:59
Weakness Enumerations
CWE URL
CWE-319 http://cwe.mitre.org/data/definitions/319.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.10.11
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.11.0 1.16.8
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.17.0 1.19.2
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.23 4.23.11
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.24 4.24.10
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.25 4.25.8
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.26 4.26.6
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.27 4.27.4
cpe:2.3:h:arista:ccs-722xpm-48y4:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:ccs-722xpm-48zy8:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.10.11
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.11.0 1.16.8
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.17.0 1.19.2
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.23 4.23.11
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.24 4.24.10
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.25 4.25.8
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.26 4.26.6
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.27 4.27.4
cpe:2.3:h:arista:7050cx3-32s:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7050cx3m-32s:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7050sx3-48c8:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7050sx3-48yc:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7050sx3-48yc12:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7050sx3-48yc8:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7050sx3-96yc8:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7050tx3-48c8:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:dcs-7050cx3-32s:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:dcs-7050cx3-32s-r:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:dcs-7050cx3m-32s:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:dcs-7050sx3-48c8:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:dcs-7050sx3-48yc12:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:dcs-7050sx3-48yc8:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:dcs-7050sx3-96yc8:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.10.11
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.11.0 1.16.8
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.17.0 1.19.2
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.23 4.23.11
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.24 4.24.10
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.25 4.25.8
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.26 4.26.6
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.27 4.27.4
cpe:2.3:h:arista:7280cr2ak-30:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280cr2k-60:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280cr3-32d4:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280cr3-32p4:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280cr3-96:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280cr3k-32d4:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280cr3k-32p4:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280cr3k-96:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280dr3-24:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280dr3k-24:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280pr3-24:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280pr3k-24:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280r2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280r3:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280sr3-48yc8:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7280sr3k-48yc8:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.10.11
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.11.0 1.16.8
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.17.0 1.19.2
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.23 4.23.11
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.24 4.24.10
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.25 4.25.8
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.26 4.26.6
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.27 4.27.4
cpe:2.3:h:arista:7500r2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7500r3:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7500r3-24d:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7500r3-24p:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7500r3-36cq:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7500r3k-36cq:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.10.11
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.11.0 1.16.8
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.17.0 1.19.2
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.23 4.23.11
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.24 4.24.10
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.25 4.25.8
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.26 4.26.6
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.27 4.27.4
cpe:2.3:h:arista:7800r3-36p:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7800r3-48cq:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:7800r3k-48cq:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.10.11
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.11.0 1.16.8
cpe:2.3:a:arista:terminattr:*:*:*:*:*:*:*:* 1 OR 1.17.0 1.19.2
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.23 4.23.11
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.24 4.24.10
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.25 4.25.8
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.26 4.26.6
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.27 4.27.4
cpe:2.3:h:arista:7388x5:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:H/Au:S/C:P/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • HIGH
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 3.6
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 6.1
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 0.9
  • Impact Score
  • 5.2
References
Reference URL Reference Tags
https://www.arista.com/en/support/advisories-notices/security-advisories/15484-security-advisory-0077
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-28509
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28509
History
Created Old Value New Value Data Type Notes
2022-05-26 21:00:13 Added to TrackCVE