PT-2018-12273 · Arista · Arista Eos

Publicado 2018-09-13 · Atualizado 2019-08-28 · CVE-2018-14008

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Média

Vetor base

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Arista EOS versions prior to 4.21.0F

Description The issue arises from the mishandling of 802.1x authentication, which can also affect MACSec when dynamic keys are used. This allows for a denial of service attack at the data plane by crashing the Dot1x agent via a crafted packet sent from the data port, preventing other users from successfully authenticating with the device. There is no evidence of this vulnerability being exploited as of the last update.

Recommendations For Arista EOS versions prior to 4.21.0F, update to a version later than 4.21.0F to resolve the issue. As a temporary workaround, consider restricting access to the 802.1x authentication feature to minimize the risk of exploitation.

Correção

DoS

Improper Authentication

Enumeração de Fraquezas

CWE-287

Identificadores relacionados

CVE-2018-14008

Produtos afetados

Arista Eos

Referências · 4

• https://osv.dev/vulnerability/CVE-2018-14008 · Aviso do Fabricante
• https://arista.com/en/support/advisories-notices/security-advisories/6072-security-advisory-38 · Aviso do Fabricante
• https://arista.com/en/support/advisories-notices · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2018-14008 · Nota de Segurança