CVE-2021-28511

MEDIUM

5.8

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 ACL bypass.

Details CVE

Score CVSS v3.15.8

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie8/5/2022

Derniere modification11/21/2024

Sourcenvd

Observations honeypot0

Produits affectes

arista:7050cx3-32sarista:7050cx3m-32sarista:7050sx3-48c8arista:7050sx3-48ycarista:7050sx3-48yc12arista:7050sx3-48yc8arista:7050sx3-96yc8arista:7050tx3-48c8arista:720xp-24y6arista:720xp-24zy4arista:720xp-48y6arista:720xp-48zc2arista:720xp-96zc2arista:7300x3-32carista:7300x3-48yc4arista:eos

Faiblesses (CWE)

CWE-284

References

https://www.arista.com/en/support/advisories-notices/security-advisory/15862-security-advisory-0078(psirt@arista.com)

https://www.arista.com/en/support/advisories-notices/security-advisory/15862-security-advisory-0078(af854a3a-2127-422b-91ae-364da2661108)

Correlations IOC

Aucune correlation enregistree

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