CVE-2021-28511

MEDIUM

5.8

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.15.8

SeveridadMEDIUM

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado8/5/2022

Ultima modificacion11/21/2024

Fuentenvd

Avistamientos honeypot0

Productos afectados

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

Debilidades (CWE)

CWE-284

Referencias

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)

Correlaciones IOC

Sin correlaciones registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.