Alertas de Seguridad de la Información

Under certain circumstances on affected platforms running Arista EOS with gRPC Network Packet Sampling Interface (gNPSI) enabled, an unauthenticated gNPSI client can craft a malicious request to allow arbitrary code execution, granting an attacker full administrative control over the compromised switch.

Una vulnerabilidad de puntuación CVSS 10 en Arista EOS permite que clientes no autenticados ejecuten código arbitrario con privilegios administrativos en switches configurados con P4Runtime. Aunque P4Runtime está deshabilitado por defecto, equipos que lo han activado para programabilidad de red enfrentan riesgo crítico. Esta falla afecta especialmente a proveedores de servicios y operadores de centros de datos en Latinoamérica que utilizan infraestructura Arista.

A privileged attacker can exploit certain operation to execute arbitrary commands with root privileges, leading to full device compromise. An authenticated user can exploit gRPC Network Security Interface (gNSI) Certz service on Arista EOS-based products to escalate privileges and execute arbitrary OS commands via a crafted Certz Rotate request. The Bootz service is also affected.

On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) relay configured, an unauthenticated attacker with network access could send a crafted DHCP reply packet from an IP address that is not configured as a helper address, and the relay agent would forward it to clients without validating the source. This could allow the attacker to supply clients with malicious n…