CVE-2024-47489

An Improper Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of the Juniper Networks Junos OS Evolved on ACX Series devices allows an unauthenticated, network based attacker sending specific transit protocol traffic to cause a partial Denial of Service (DoS) to downstream devices. Receipt of specific transit protocol packets is incorrectly processed by the Routing Engine (RE), filling up the DDoS protection queue which is shared between routing protocols. This influx of transit protocol packets causes DDoS protection violations, resulting in protocol flaps which can affect connectivity to networking devices. This issue affects both IPv4 and IPv6. This issue does not require any specific routing protocol to be configured or enabled. The following commands can be used to monitor the DDoS protection queue: labuser@re0> show evo-pfemand host pkt-stats ?? labuser@re0> show host-path ddos all-policers This issue affects Junos OS Evolved: * All versions before 21.4R3-S8-EVO, * from 22.2 before 22.2R3-S4-EVO, * from 22.3 before 22.3R3-S4-EVO, * from 22.4 before 22.4R3-S3-EVO, * from 23.2 before 23.2R2-EVO, * from 23.4 before 23.4R1-S1-EVO, 23.4R2-EVO, * from 24.2 before 24.2R2-EVO.

CVSS v3 5.8 MEDIUM

5.8^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://supportportal.juniper.net/

Configurations

No configuration.

History

15 Oct 2024, 12:58

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad de manejo inadecuado de condiciones excepcionales en el motor de reenvío de paquetes (pfe) del sistema operativo Juniper Networks Junos OS Evolved en los dispositivos de la serie ACX permite que un atacante no autenticado basado en la red envíe tráfico de protocolo de tránsito específico para provocar una denegación de servicio (DoS) parcial a los dispositivos de bajada. El motor de enrutamiento (RE) procesa incorrectamente la recepción de paquetes de protocolo de tránsito específico, lo que llena la cola de protección DDoS que se comparte entre los protocolos de enrutamiento. Esta afluencia de paquetes de protocolo de tránsito provoca violaciones de la protección DDoS, lo que da como resultado fluctuaciones de protocolo que pueden afectar la conectividad a los dispositivos de red. Este problema afecta tanto a IPv4 como a IPv6. Este problema no requiere que se configure o habilite ningún protocolo de enrutamiento específico. Los siguientes comandos se pueden utilizar para monitorear la cola de protección DDoS: labuser@re0> show evo-pfemand host pkt-stats labuser@re0> show host-path ddos all-policers Este problema afecta a Junos OS Evolved: * Todas las versiones anteriores a 21.4R3-S8-EVO, * desde 22.2 hasta 22.2R3-S4-EVO, * desde 22.3 hasta 22.3R3-S4-EVO, * desde 22.4 hasta 22.4R3-S3-EVO, * desde 23.2 hasta 23.2R2-EVO, * desde 23.4 hasta 23.4R1-S1-EVO, 23.4R2-EVO, * desde 24.2 hasta 24.2R2-EVO.
Summary	(en) An Improper Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of the Juniper Networks Junos OS Evolved on ACX Series devices allows an unauthenticated, network based attacker sending specific transit protocol traffic to cause a partial Denial of Service (DoS) to downstream devices. Receipt of specific transit protocol packets is incorrectly processed by the Routing Engine (RE), filling up the DDoS protection queue which is shared between routing protocols. This influx of transit protocol packets causes DDoS protection violations, resulting in protocol flaps which can affect connectivity to networking devices. This issue affects both IPv4 and IPv6. This issue does not require any specific routing protocol to be configured or enabled. The following commands can be used to monitor the DDoS protection queue: labuser@re0> show evo-pfemand host pkt-stats labuser@re0> show host-path ddos all-policers This issue affects Junos OS Evolved: * All versions before 21.4R3-S8-EVO, * from 22.2 before 22.2R3-S4-EVO, * from 22.3 before 22.3R3-S4-EVO, * from 22.4 before 22.4R3-S3-EVO, * from 23.2 before 23.2R2-EVO, * from 23.4 before 23.4R1-S1-EVO, 23.4R2-EVO, * from 24.2 before 24.2R2-EVO.	(en) An Improper Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of the Juniper Networks Junos OS Evolved on ACX Series devices allows an unauthenticated, network based attacker sending specific transit protocol traffic to cause a partial Denial of Service (DoS) to downstream devices. Receipt of specific transit protocol packets is incorrectly processed by the Routing Engine (RE), filling up the DDoS protection queue which is shared between routing protocols. This influx of transit protocol packets causes DDoS protection violations, resulting in protocol flaps which can affect connectivity to networking devices. This issue affects both IPv4 and IPv6. This issue does not require any specific routing protocol to be configured or enabled. The following commands can be used to monitor the DDoS protection queue: labuser@re0> show evo-pfemand host pkt-stats ?? labuser@re0> show host-path ddos all-policers This issue affects Junos OS Evolved: * All versions before 21.4R3-S8-EVO, * from 22.2 before 22.2R3-S4-EVO, * from 22.3 before 22.3R3-S4-EVO, * from 22.4 before 22.4R3-S3-EVO, * from 23.2 before 23.2R2-EVO, * from 23.4 before 23.4R1-S1-EVO, 23.4R2-EVO, * from 24.2 before 24.2R2-EVO.

11 Oct 2024, 16:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-10-11 16:15

Updated : 2024-10-15 12:58

NVD link : CVE-2024-47489

Mitre link : CVE-2024-47489

CVE.ORG link : CVE-2024-47489

JSON object : View

Products Affected

No product.

CWE

CWE-755

Improper Handling of Exceptional Conditions

5.8 /10