This advisory documents the impact of an internally found vulnerability in Arista EOS for security ACL bypass. The impact of this vulnerability is that the security ACL drop rule might be bypassed if a NAT ACL rule filter with permit action matches the packet flow. This could allow a host with an IP address in a range that matches the range allowed by a NAT ACL and a range denied by a Security ACL to be forwarded incorrectly as it should have been denied by the Security ACL. This can enable an ACL bypass.
References
| Link | Resource |
|---|---|
| https://www.arista.com/en/support/advisories-notices/security-advisory/15862-security-advisory-0078 | Exploit Mitigation Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
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History
15 Aug 2022, 20:50
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
| CWE | NVD-CWE-Other | |
| CPE | cpe:2.3:h:arista:720xp-96zc2:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050cx3-32s:-:*:*:*:*:*:*:* cpe:2.3:h:arista:720xp-48y6:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7300x3-48yc4:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx3-96yc8:-:*:*:*:*:*:*:* cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx3-48yc8:-:*:*:*:*:*:*:* cpe:2.3:h:arista:720xp-24zy4:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7300x3-32c:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx3-48yc:-:*:*:*:*:*:*:* cpe:2.3:h:arista:720xp-48zc2:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050tx3-48c8:-:*:*:*:*:*:*:* cpe:2.3:h:arista:720xp-24y6:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx3-48c8:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050cx3m-32s:-:*:*:*:*:*:*:* cpe:2.3:h:arista:7050sx3-48yc12:-:*:*:*:*:*:*:* |
|
| References | (MISC) https://www.arista.com/en/support/advisories-notices/security-advisory/15862-security-advisory-0078 - Exploit, Mitigation, Vendor Advisory | |
| First Time |
Arista 720xp-24zy4
Arista 720xp-24y6 Arista 720xp-48y6 Arista 7300x3-32c Arista 7050sx3-48yc Arista 7050tx3-48c8 Arista 7050sx3-48c8 Arista 7050cx3-32s Arista Arista 720xp-48zc2 Arista 7050sx3-48yc12 Arista 7050sx3-48yc8 Arista 7050sx3-96yc8 Arista 7050cx3m-32s Arista 7300x3-48yc4 Arista eos Arista 720xp-96zc2 |
05 Aug 2022, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2022-08-05 17:15
Updated : 2023-12-10 14:35
NVD link : CVE-2021-28511
Mitre link : CVE-2021-28511
CVE.ORG link : CVE-2021-28511
JSON object : View
Products Affected
arista
- 720xp-24zy4
- 7300x3-32c
- 7300x3-48yc4
- eos
- 7050cx3m-32s
- 720xp-24y6
- 7050sx3-48yc12
- 720xp-96zc2
- 7050sx3-48yc
- 720xp-48zc2
- 720xp-48y6
- 7050sx3-96yc8
- 7050sx3-48yc8
- 7050cx3-32s
- 7050tx3-48c8
- 7050sx3-48c8
CWE