CVE-2021-28511

CWE-284 — Improper Access Control3 documents3 sources
Severity
6.5MEDIUM
EPSS
0.2%
top 53.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Arista Networks EOSArista EOS
Timeline
PublishedAug 5
Latest updateAug 6

Description

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 A…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages2 packages

▶NVDarista/eos4.25.0 — 4.25.8+3
▶CVEListV5arista_networks/eos4.24.0 — 4.24.9+3

🔴Vulnerability Details

2
GHSA
GHSA-7rjh-m68p-34pq: This advisory documents the impact of an internally found vulnerability in Arista EOS for security ACL bypass↗2022-08-06
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CVEList
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↗2022-08-05
▶