CVE-2024-21598highCWE-1286

CVE-2024-21598: fallo de gravedad alta en Juniper Networks Junos OS

Junos OS and Junos OS Evolved: A malformed BGP tunnel encapsulation attribute will lead to an rpd crash

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear Junos OS+ Monitorear Junos OS Evolved

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 8.7epss 0.6%
En resumen

Una falla en los enrutadores Juniper permite que un atacante en la red derribe el sistema de enrutamiento enviando un mensaje BGP especialmente malformado. Cuando esto ocurre, el enrutador se reinicia, interrumpiendo todo el tráfico que pasa por él.

Detalle técnico

Una vulnerabilidad de validación inadecuada en el Daemon de Protocolo de Enrutamiento (rpd) de Junos OS y Junos OS Evolved permite que un atacante basado en red y no autenticado cause una denegación de servicio mediante el envío de una actualización BGP que contiene un atributo de encapsulación de túnel malformado. Al recibir la entrada malformada en una sesión BGP establecida, el rpd falla y se reinicia, interrumpiendo los servicios de enrutamiento.

Resumen generado y traducido por IA a partir de la descripción oficial.
An Improper Validation of Syntactic Correctness of Input vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). If a BGP update is received over an established BGP session which contains a tunnel encapsulation attribute with a specifically malformed TLV, rpd will crash and restart. This issue affects Juniper Networks Junos OS: * 20.4 versions 20.4R1 and later versions earlier than 20.4R3-S9; * 21.2 versions earlier than 21.2R3-S7; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S5; * 22.1 versions earlier than 22.1R3-S4; * 22.2 versions earlier than 22.2R3-S3; * 22.3 versions earlier than 22.3R3-S1; * 22.4 versions earlier than 22.4R3; * 23.2 versions earlier than 23.2R1-S2, 23.2R2; Junos OS Evolved: * 20.4-EVO versions 20.4R1-EVO and later versions earlier than 20.4R3-S9-EVO; * 21.2-EVO versions earlier than 21.2R3-S7-EVO; * 21.3-EVO versions earlier than 21.3R3-S5-EVO; * 21.4-EVO versions earlier than 21.4R3-S5-EVO; * 22.1-EVO versions earlier than 22.1R3-S4-EVO; * 22.2-EVO versions earlier than 22.2R3-S3-EVO; * 22.3-EVO versions earlier than 22.3R3-S1-EVO; * 22.4-EVO versions earlier than 22.4R3-EVO; * 23.2-EVO versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO; This issue does not affect Juniper Networks * Junos OS versions earlier than 20.4R1; * Junos OS Evolved versions earlier than 20.4R1-EVO. This is a related but separate issue than the one described in JSA79095.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
Productos afectados
Juniper Networks · Junos OSJuniper Networks · Junos OS Evolved
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