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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: Arista
Published: 2022-08-05T16:47:31.584165Z
Updated: 2024-09-16T17:15:30.137Z
Reserved: 2021-03-16T00:00:00
Link: CVE-2021-28511
Vulnrichment
No data.
NVD
Status : Modified
Published: 2022-08-05T17:15:07.957
Modified: 2024-11-21T05:59:48.747
Link: CVE-2021-28511
Redhat
No data.