CVE-2021-28511

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Summary

CVECVE-2021-28511
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-05 17:15:00 UTC
Updated2022-08-15 20:50:00 UTC
DescriptionThis 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.

Risk And Classification

Problem Types: NVD-CWE-Other

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Arista 7050cx3-32s - All All All
Hardware Arista 7050cx3m-32s - All All All
Hardware Arista 7050sx3-48c8 - All All All
Hardware Arista 7050sx3-48yc - All All All
Hardware Arista 7050sx3-48yc12 - All All All
Hardware Arista 7050sx3-48yc8 - All All All
Hardware Arista 7050sx3-96yc8 - All All All
Hardware Arista 7050tx3-48c8 - All All All
Hardware Arista 720xp-24y6 - All All All
Hardware Arista 720xp-24zy4 - All All All
Hardware Arista 720xp-48y6 - All All All
Hardware Arista 720xp-48zc2 - All All All
Hardware Arista 720xp-96zc2 - All All All
Hardware Arista 7300x3-32c - All All All
Hardware Arista 7300x3-48yc4 - All All All
Operating System Arista Eos All All All All
Operating System Arista Eos All All All All
Operating System Arista Eos All All All All
Operating System Arista Eos All All All All

References

ReferenceSourceLinkTags
Security Advisory 0078 - Arista MISC www.arista.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 44004 Arista EOS Improper Access Control Vulnerability (SA0078)
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