CVE-2021-28510

Published on: Not Yet Published

Last Modified on: 02/03/2023 07:50:00 PM UTC

CVE-2021-28510 - advisory for 76

Source: Mitre Source: NIST CVE.ORG Print: PDF PDF
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Certain versions of 7020r from Arista contain the following vulnerability:

For certain systems running EOS, a Precision Time Protocol (PTP) packet of a management/signaling message with an invalid Type-Length-Value (TLV) causes the PTP agent to restart. Repeated restarts of the service will make the service unavailable.

  • CVE-2021-28510 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
Vulnerability Patch/Work Around
  • Install ACL rules to drop PTP packets from untrusted sources. Best practice is to block access to untrusted (non-management) networks.

CVSS3 Score: 7.5 - HIGH

Attack
Vector ⓘ		 Attack
Complexity		 Privileges
Required		 User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
UNCHANGED NONE NONE HIGH

CVE References

Description Tags ⓘ Link
Security Advisory 0076 - Arista www.arista.com
text/html
 URL Logo MISC www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076
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Related QID Numbers

  • 44000 Arista EOS PTP Service Denial of Service (DoS) Vulnerability (SA0076)

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Hardware Device InfoArista7020r-AllAllAll
Hardware Device InfoArista7050cx3-32s-AllAllAll
Hardware Device InfoArista7050cx3m-32s-AllAllAll
Hardware Device InfoArista7050qx-32s-AllAllAll
Hardware Device InfoArista7050qx2-32s-AllAllAll
Hardware Device InfoArista7050sx-128-AllAllAll
Hardware Device InfoArista7050sx-64-AllAllAll
Hardware Device InfoArista7050sx-72q-AllAllAll
Hardware Device InfoArista7050sx2-128-AllAllAll
Hardware Device InfoArista7050sx2-72q-AllAllAll
Hardware Device InfoArista7050sx3-48c8-AllAllAll
Hardware Device InfoArista7050sx3-48yc-AllAllAll
Hardware Device InfoArista7050sx3-48yc12-AllAllAll
Hardware Device InfoArista7050sx3-48yc8-AllAllAll
Hardware Device InfoArista7050sx3-96yc8-AllAllAll
Hardware Device InfoArista7050tx-48-AllAllAll
Hardware Device InfoArista7050tx-64-AllAllAll
Hardware Device InfoArista7050tx-72q-AllAllAll
Hardware Device InfoArista7050tx2-128-AllAllAll
Hardware Device InfoArista7050tx3-48c8-AllAllAll
Hardware Device InfoArista7060cx-32s-AllAllAll
Hardware Device InfoArista7060cx2-32s-AllAllAll
Hardware Device InfoArista7060dx4-32-AllAllAll
Hardware Device InfoArista7060px4-32-AllAllAll
Hardware Device InfoArista7060sx2-48yc6-AllAllAll
Hardware Device InfoArista7150s-24-AllAllAll
Hardware Device InfoArista7150s-52-AllAllAll
Hardware Device InfoArista7150s-64-AllAllAll
Hardware Device InfoArista7150sc-24-AllAllAll
Hardware Device InfoArista7150sc-64-AllAllAll
Hardware Device InfoArista7170-32c-AllAllAll
Hardware Device InfoArista7170-32cd-AllAllAll
Hardware Device InfoArista7170-64c-AllAllAll
Hardware Device InfoArista720xp-24y6-AllAllAll
Hardware Device InfoArista720xp-24zy4-AllAllAll
Hardware Device InfoArista720xp-48y6-AllAllAll
Hardware Device InfoArista720xp-48zc2-AllAllAll
Hardware Device InfoArista720xp-96zc2-AllAllAll
Hardware Device InfoArista7250qx-64-AllAllAll
Hardware Device InfoArista7260cx-AllAllAll
Hardware Device InfoArista7260cx3-AllAllAll
Hardware Device InfoArista7260cx3-64-AllAllAll
Hardware Device InfoArista7260qx-AllAllAll
Hardware Device InfoArista7280e-AllAllAll
Hardware Device InfoArista7280r-AllAllAll
Hardware Device InfoArista7280r2-AllAllAll
Hardware Device InfoArista7280r3-AllAllAll
Hardware Device InfoArista7280sr3-48yc8-AllAllAll
Hardware Device InfoArista7280sr3k-48yc8-AllAllAll
Hardware Device InfoArista7300x-32q-AllAllAll
Hardware Device InfoArista7300x-64s-AllAllAll
Hardware Device InfoArista7300x-64t-AllAllAll
Hardware Device InfoArista7300x3-32c-AllAllAll
Hardware Device InfoArista7300x3-48yc4-AllAllAll
Hardware Device InfoArista7304x3-AllAllAll
Hardware Device InfoArista7308x3-AllAllAll
Hardware Device InfoArista7320x-32c-AllAllAll
Hardware Device InfoArista7324x-AllAllAll
Hardware Device InfoArista7328x-AllAllAll
Hardware Device InfoArista7368x4-AllAllAll
Hardware Device InfoArista7500e-AllAllAll
Hardware Device InfoArista7500r-AllAllAll
Hardware Device InfoArista7500r2-AllAllAll
Hardware Device InfoArista7500r3-AllAllAll
Hardware Device InfoArista7500r3-24d-AllAllAll
Hardware Device InfoArista7500r3-24p-AllAllAll
Hardware Device InfoArista7500r3-36cq-AllAllAll
Hardware Device InfoArista7500r3k-36cq-AllAllAll
Hardware Device InfoArista7504r3-AllAllAll
Hardware Device InfoArista7508r3-AllAllAll
Hardware Device InfoArista7512r3-AllAllAll
Hardware Device InfoArista7800r3-36p-AllAllAll
Hardware Device InfoArista7800r3-48cq-AllAllAll
Hardware Device InfoArista7800r3k-48cq-AllAllAll
Hardware Device InfoArista7804r3-AllAllAll
Hardware Device InfoArista7808r3-AllAllAll
Operating
System		AristaEosAllAllAllAll
  • cpe:2.3:h:arista:7020r:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050cx3-32s:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050cx3m-32s:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050qx-32s:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050qx2-32s:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050sx-128:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050sx-64:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050sx-72q:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050sx2-128:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050sx2-72q:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050sx3-48c8:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050sx3-48yc:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050sx3-48yc12:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050sx3-48yc8:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050sx3-96yc8:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050tx-48:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050tx-64:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050tx-72q:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050tx2-128:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7050tx3-48c8:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7060cx-32s:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7060cx2-32s:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7060dx4-32:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7060px4-32:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7060sx2-48yc6:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7150s-24:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7150s-52:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7150s-64:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7150sc-24:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7150sc-64:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7170-32c:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7170-32cd:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7170-64c:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:720xp-24y6:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:720xp-24zy4:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:720xp-48y6:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:720xp-48zc2:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:720xp-96zc2:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7250qx-64:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7260cx:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7260cx3:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7260cx3-64:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7260qx:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7280e:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7280r:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7280r2:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7280r3:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7280sr3-48yc8:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7280sr3k-48yc8:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7300x-32q:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7300x-64s:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7300x-64t:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7300x3-32c:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7300x3-48yc4:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7304x3:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7308x3:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7320x-32c:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7324x:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7328x:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7368x4:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7500e:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7500r:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7500r2:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7500r3:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7500r3-24d:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7500r3-24p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7500r3-36cq:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7500r3k-36cq:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7504r3:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7508r3:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7512r3:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7800r3-36p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7800r3-48cq:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7800r3k-48cq:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7804r3:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:arista:7808r3:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-28510 : For certain systems running EOS, a Precision Time Protocol PTP packet of a management/signaling… twitter.com/i/web/status/1… 2023-01-26 22:24:51
Twitter Icon @JohnJasonFallow New vulnerability on the NVD: CVE-2021-28510 ift.tt/ydOQsnx 2023-01-26 23:17:55
Reddit Logo Icon /r/netcve CVE-2021-28510 2023-01-26 23:38:53
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