CVSS: 7.5EPSS: 0%CPEs: 255EXPL: 0CVE-2021-0285 – Junos OS: QFX5000 Series and EX4600 Series: Continuous traffic destined to a device configured with MC-LAG leading to nodes losing their control connection which can impact traffic
https://notcve.org/view.php?id=CVE-2021-0285
An uncontrolled resource consumption vulnerability in Juniper Networks Junos OS on QFX5000 Series and EX4600 Series switches allows an attacker sending large amounts of legitimate traffic destined to the device to cause Interchassis Control Protocol (ICCP) interruptions, leading to an unstable control connection between the Multi-Chassis Link Aggregation Group (MC-LAG) nodes which can in turn lead to traffic loss. Continued receipt of this amount of traffic will create a sustained Denial of Service (DoS) condition. An indication that the system could be impacted by this issue is the following log message: "DDOS_PROTOCOL_VIOLATION_SET: Warning: Host-bound traffic for protocol/exception LOCALNH:aggregate exceeded its allowed bandwidth at fpc <fpc number> for <n> times, started at <timestamp>" This issue affects Juniper Networks Junos OS on QFX5000 Series and EX4600 Series: 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S8, 18.4R3-S7; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R1-S1, 20.4R2. Una vulnerabilidad de consumo No Controlado de recursos en Juniper Networks Junos OS en los switches de las series QFX5000 y EX4600, permite a un atacante enviar grandes cantidades de tráfico legítimo destinado al dispositivo y causar interrupciones en Control Protocol (ICCP), conllevando a una conexión de control inestable entre los Nodos Multi-Chassis Link Aggregation Group (MC-LAG) que, a su vez, puede conllevar a pérdida de tráfico. Una recepción continua de esta cantidad de tráfico creará una condición de Denegación de Servicio (DoS) sostenida. • https://kb.juniper.net/JSA11187 • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 6.5EPSS: 0%CPEs: 226EXPL: 0CVE-2021-0237 – Junos OS: EX4300-MP/EX4600/EX4650/QFX5K Series: Packet Forwarding Engine manager (FXPC) process crashes when deployed in a Virtual Chassis (VC) configuration
https://notcve.org/view.php?id=CVE-2021-0237
On Juniper Networks EX4300-MP Series, EX4600 Series, EX4650 Series, QFX5K Series deployed as a Virtual Chassis with a specific Layer 2 circuit configuration, Packet Forwarding Engine manager (FXPC) process may crash and restart upon receipt of specific layer 2 frames. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS on EX4300-MP Series, EX4600 Series, EX4650 Series, QFX5K Series 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4, 17.4R3-S5; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R2-S7, 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2; En Juniper Networks Serie EX4300-MP, Serie EX4600, Serie EX4650, Serie QFX5K implementadas como un Virtual Chassis con una configuración de circuito de capa 2 específica, el proceso del Packet Forwarding Engine manager (FXPC) puede bloquearse y reiniciarse al recibir tramas de capa 2 específicas. La recepción y el procesamiento continuo de este paquete crearán una condición sostenida de Denegación de Servicio (DoS). Este problema afecta a: Juniper Networks Junos OS en las versiones Serie EX4300-MP, Serie EX4600, Serie EX4650, Serie QFX5K versiones 15.1 anteriores a 15.1R7-S9; versiones 17.3 anteriores a 17.3R3-S11; versiones 17.4 anteriores a 17.4R2-S13, 17.4R3-S4, 17.4R3-S5; versiones 18.2 anteriores a 18.2R3-S8; versiones 18.3 anteriores a 18.3R3-S4; versiones 18.4 anteriores a 18.4R2-S7, 18.4R3-S6; versiones 19.1 anteriores a 19.1R3-S4; versiones 19.2 anteriores a 19.2R1-S6, 19.2R3-S1; versiones 19.3 anteriores a 19.3R3-S1; versiones 19.4 anteriores a 19.4R2-S4, 19.4R3-S1; versiones 20.1 anteriores a 20.1R2; versiones 20.2 anteriores a 20.2R2, 20.2R3; versiones 20.3 anteriores a 20.3R1-S2, 20.3R2; • https://kb.juniper.net/JSA11132 •
CVSS: 10.0EPSS: 0%CPEs: 336EXPL: 0CVE-2021-0211 – Junos OS and Junos OS Evolved: Upon receipt of a specific BGP FlowSpec message network traffic may be disrupted.
https://notcve.org/view.php?id=CVE-2021-0211
An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon (RPD) service allows an attacker to send a valid BGP FlowSpec message thereby causing an unexpected change in the route advertisements within the BGP FlowSpec domain leading to disruptions in network traffic causing a Denial of Service (DoS) condition. Continued receipt of these update messages will cause a sustained Denial of Service condition. This issue affects Juniper Networks: Junos OS: All versions prior to 17.3R3-S10 with the exceptions of 15.1X49-D240 on SRX Series and 15.1R7-S8 on EX Series; 17.3 versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R2-S12, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S6; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S3; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R1-S3, 19.4R2-S3, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S3 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2. Junos OS Evolved: All versions prior to 20.3R1-S1-EVO, 20.3R2-EVO. Una comprobación inapropiada de condiciones inusuales o excepcionales en Juniper Networks. • https://kb.juniper.net/JSA11101 • CWE-754: Improper Check for Unusual or Exceptional Conditions •
CVSS: 6.5EPSS: 0%CPEs: 135EXPL: 0CVE-2020-1689 – Junos OS: EX4300-MP/EX4600/QFX5K Series: High CPU load due to receipt of specific layer 2 frames when deployed in a Virtual Chassis configuration
https://notcve.org/view.php?id=CVE-2020-1689
On Juniper Networks EX4300-MP Series, EX4600 Series and QFX5K Series deployed in a Virtual Chassis configuration, receipt of a stream of specific layer 2 frames can cause high CPU load, which could lead to traffic interruption. This issue does not occur when the device is deployed in Stand Alone configuration. The offending layer 2 frame packets can originate only from within the broadcast domain where the device is connected. This issue affects Juniper Networks Junos OS on EX4300-MP Series, EX4600 Series and QFX5K Series: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R3; 19.3 versions prior to 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S1, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2. En Juniper Networks EX4300-MP Series, EX4600 Series y QFX5K Series implementadas en una configuración de Chasis Virtual, la recepción de un flujo de tramas de capa 2 específicas puede causar una alta carga de CPU, lo que podría conllevar a una interrupción del tráfico. • https://kb.juniper.net/JSA11086 • CWE-400: Uncontrolled Resource Consumption •
CVSS: 8.6EPSS: 0%CPEs: 3EXPL: 0CVE-2019-0041 – Junos OS: EX4300-MP Series: IP transit traffic can reach the control plane via loopback interface.
https://notcve.org/view.php?id=CVE-2019-0041
On EX4300-MP Series devices with any lo0 filters applied, transit network traffic may reach the control plane via loopback interface (lo0). The device may fail to forward such traffic. This issue affects Juniper Networks Junos OS 18.2 versions prior to 18.2R1-S2, 18.2R2 on EX4300-MP Series. This issue does not affect any other EX series devices. En los dispositivos de la serie EX4300-MP con cualquier filtro lo0 aplicado, el tráfico de la red de tránsito puede alcanzar el plano de control por medio de la interfaz de bucle invertido (lo0). • https://kb.juniper.net/JSA10933 • CWE-284: Improper Access Control •