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.
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
En las plataformas Arista EOS afectadas, si se presenta una regla de coincidencia VXLAN en una lista de acceso IPv4 que es aplicada a la entrada de un puerto/SVI L2 o L3, la regla VXLAN y las reglas ACL posteriores en esa lista de acceso ignorarán el protocolo IP especificado
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-03-16 CVE Reserved
- 2022-04-14 CVE Published
- 2023-11-05 EPSS Updated
- 2024-09-16 CVE Updated
- 2024-09-16 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-284: Improper Access Control
- CWE-863: Incorrect Authorization
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073 | 2024-09-16 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-710p-12 Search vendor "Arista" for product "Ccs-710p-12" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-710p-16p Search vendor "Arista" for product "Ccs-710p-16p" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-720xp-24y6 Search vendor "Arista" for product "Ccs-720xp-24y6" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-720xp-24zy4 Search vendor "Arista" for product "Ccs-720xp-24zy4" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-720xp-48y6 Search vendor "Arista" for product "Ccs-720xp-48y6" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-720xp-48zc2 Search vendor "Arista" for product "Ccs-720xp-48zc2" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-720xp-96zc2 Search vendor "Arista" for product "Ccs-720xp-96zc2" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-722xpm-48y4 Search vendor "Arista" for product "Ccs-722xpm-48y4" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-722xpm-48zy8 Search vendor "Arista" for product "Ccs-722xpm-48zy8" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7010tx-48 Search vendor "Arista" for product "Dcs-7010tx-48" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050cx3-32s Search vendor "Arista" for product "Dcs-7050cx3-32s" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050cx3m-32s Search vendor "Arista" for product "Dcs-7050cx3m-32s" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050sx3-48c8 Search vendor "Arista" for product "Dcs-7050sx3-48c8" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050sx3-48yc12 Search vendor "Arista" for product "Dcs-7050sx3-48yc12" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050sx3-48yc8 Search vendor "Arista" for product "Dcs-7050sx3-48yc8" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050sx3-96yc8 Search vendor "Arista" for product "Dcs-7050sx3-96yc8" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26 < 4.26.4m Search vendor "Arista" for product "Eos" and version " >= 4.26 < 4.26.4m" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050tx3-48c8 Search vendor "Arista" for product "Dcs-7050tx3-48c8" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-710p-12 Search vendor "Arista" for product "Ccs-710p-12" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-710p-16p Search vendor "Arista" for product "Ccs-710p-16p" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-720xp-24y6 Search vendor "Arista" for product "Ccs-720xp-24y6" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-720xp-24zy4 Search vendor "Arista" for product "Ccs-720xp-24zy4" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-720xp-48y6 Search vendor "Arista" for product "Ccs-720xp-48y6" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-720xp-48zc2 Search vendor "Arista" for product "Ccs-720xp-48zc2" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-720xp-96zc2 Search vendor "Arista" for product "Ccs-720xp-96zc2" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-722xpm-48y4 Search vendor "Arista" for product "Ccs-722xpm-48y4" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Ccs-722xpm-48zy8 Search vendor "Arista" for product "Ccs-722xpm-48zy8" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7010tx-48 Search vendor "Arista" for product "Dcs-7010tx-48" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050cx3-32s Search vendor "Arista" for product "Dcs-7050cx3-32s" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050cx3m-32s Search vendor "Arista" for product "Dcs-7050cx3m-32s" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050sx3-48c8 Search vendor "Arista" for product "Dcs-7050sx3-48c8" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050sx3-48yc12 Search vendor "Arista" for product "Dcs-7050sx3-48yc12" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050sx3-48yc8 Search vendor "Arista" for product "Dcs-7050sx3-48yc8" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050sx3-96yc8 Search vendor "Arista" for product "Dcs-7050sx3-96yc8" | - | - |
Safe
|
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.27 < 4.27.1f Search vendor "Arista" for product "Eos" and version " >= 4.27 < 4.27.1f" | - |
Affected
| in | Arista Search vendor "Arista" | Dcs-7050tx3-48c8 Search vendor "Arista" for product "Dcs-7050tx3-48c8" | - | - |
Safe
|