Vulnerability Monitor

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CVE-2021-28505

On affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol.

Published

2022-04-14T21:15:08.427

Last Modified

2024-11-21T05:59:47.940

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-284
  • Type: Primary
    CWE-863
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System arista eos < 4.26.4m Yes
Operating System arista eos < 4.27.1f Yes
Hardware arista ccs-710p-12 - No
Hardware arista ccs-710p-16p - No
Hardware arista ccs-720xp-24y6 - No
Hardware arista ccs-720xp-24zy4 - No
Hardware arista ccs-720xp-48y6 - No
Hardware arista ccs-720xp-48zc2 - No
Hardware arista ccs-720xp-96zc2 - No
Hardware arista ccs-722xpm-48y4 - No
Hardware arista ccs-722xpm-48zy8 - No
Hardware arista dcs-7010tx-48 - No
Hardware arista dcs-7050cx3-32s - No
Hardware arista dcs-7050cx3m-32s - No
Hardware arista dcs-7050sx3-48c8 - No
Hardware arista dcs-7050sx3-48yc12 - No
Hardware arista dcs-7050sx3-48yc8 - No
Hardware arista dcs-7050sx3-96yc8 - No
Hardware arista dcs-7050tx3-48c8 - No
References