CVE-2021-28505

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
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.
Overview
  • CVE ID
  • CVE-2021-28505
  • Assigner
  • psirt@arista.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-04-14T21:15:08
  • Last Modified Date
  • 2022-04-26T17:09:51
Weakness Enumerations
CWE URL
CWE-863 http://cwe.mitre.org/data/definitions/863.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.26 4.26.4m
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 1 OR 4.27 4.27.1f
cpe:2.3:h:arista:ccs-710p-12:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:ccs-710p-16p:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:ccs-720xp-24y6:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:ccs-720xp-24zy4:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:ccs-720xp-48y6:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:ccs-720xp-48zc2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:ccs-720xp-96zc2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:ccs-722xpm-48y4:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:ccs-722xpm-48zy8:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:dcs-7010tx-48:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:arista:dcs-7050cx3-32s:-:*:*:*:*:*:*:* 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
cpe:2.3:h:arista:dcs-7050tx3-48c8:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073 Exploit Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-28505
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28505
History
Created Old Value New Value Data Type Notes
2022-05-10 06:26:20 Added to TrackCVE