CVE-2021-28505

CWE-284 — Improper Access ControlCWE-863 — Incorrect Authorization3 documents3 sources
Severity
7.5HIGH
EPSS
0.2%
top 57.61%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Arista EOSArista Networks EOS
Timeline
PublishedApr 14
Latest updateApr 15

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDarista/eos4.26 — 4.26.4m+1
▶CVEListV5arista_networks/eos4.26.3M — 4.26.0+1

🔴Vulnerability Details

2
GHSA
GHSA-3p5w-c6fg-w249: 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 V↗2022-04-15
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CVEList
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 ↗2022-04-14
▶