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CVSS: 6.5EPSS: 0%CPEs: 381EXPL: 0

An Unchecked Error Condition vulnerability in the subscriber management daemon (smgd) of Juniper Networks Junos OS allows an unauthenticated adjacent attacker to cause a crash of and thereby a Denial of Service (DoS). In a subscriber management / broadband edge environment if a single session group configuration contains dual-stack and a pp0 interface, smgd will crash and restart every time a PPPoE client sends a specific message. This issue affects Juniper Networks Junos OS on MX Series: 16.1 version 16.1R1 and later versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 16.1R1. Una vulnerabilidad de condición de error no comprobada en el demonio de gestión de suscriptores (smgd) del sistema operativo Junos de Juniper Networks permite que un atacante adyacente no autenticado provoque un bloqueo y, por tanto, una denegación de servicio (DoS). • https://kb.juniper.net/JSA11268 • CWE-391: Unchecked Error Condition •

CVSS: 7.5EPSS: 0%CPEs: 19EXPL: 0

A vulnerability in the NETISR network queue functionality of Juniper Networks Junos OS kernel allows an attacker to cause a Denial of Service (DoS) by sending crafted genuine packets to a device. During an attack, the routing protocol daemon (rpd) CPU may reach 100% utilization, yet FPC CPUs forwarding traffic will operate normally. This attack occurs when the attackers' packets are sent over an IPv4 unicast routing equal-cost multi-path (ECMP) unilist selection. Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. An indicator of compromise may be to monitor NETISR drops in the network with the assistance of JTAC. • https://kb.juniper.net/JSA11267 •

CVSS: 7.4EPSS: 0%CPEs: 112EXPL: 1

An Improper Certificate Validation weakness in the Juniper Networks Junos OS allows an attacker to perform Person-in-the-Middle (PitM) attacks when a system script is fetched from a remote source at a specified HTTPS URL, which may compromise the integrity and confidentiality of the device. The following command can be executed by an administrator via the CLI to refresh a script from a remote location, which is affected from this vulnerability: >request system scripts refresh-from (commit | event | extension-service | op | snmp) file filename url <https-url> This issue affects: Juniper Networks Junos OS All versions prior to 18.4R2-S9, 18.4R3-S9; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S7; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2-S1, 20.3R3; 20.4 versions prior to 20.4R2; 21.1 versions prior to 21.1R1-S1, 21.1R2. Una debilidad de comprobación de certificados inapropiada en el Sistema Operativo Junos de Juniper Networks permite a un atacante llevar a cabo ataques de tipo Person-in-the-Middle (PitM) cuando es obtenida una secuencia de comandos del sistema desde una fuente remota en una URL HTTPS especificada, que puede comprometer la integridad y la confidencialidad del dispositivo. El siguiente comando puede ser ejecutado por un administrador por medio de la CLI para refrescar un script desde una ubicación remota, lo cual está afectado por esta vulnerabilidad: )request system scripts refresh-from (commit | event | extension-service | op | snmp) file filename url (https-url) Este problema afecta a: Juniper Networks Junos OS Todas las versiones anteriores a 18.4R2-S9, 18.4R3-S9; 19.1 versiones anteriores a 19.1R2-S3, 19.1R3-S7; 19.2 versiones anteriores a 19.2R1-S7, 19.2R3-S3; 19.3 versiones anteriores a 19.3R3-S4; 19. 4 versiones anteriores a 19.4R3-S7; 20.1 versiones anteriores a 20.1R2-S2, 20.1R3; 20.2 versiones anteriores a 20.2R3; versiones 20.3 anteriores a 20.3R2-S1, 20.3R3; 20.4 versiones anteriores a 20.4R2; 21.1 versiones anteriores a 21.1R1-S1, 21.1R2 • https://kb.juniper.net/JSA11264 • CWE-295: Improper Certificate Validation CWE-300: Channel Accessible by Non-Endpoint CWE-358: Improperly Implemented Security Check for Standard •

CVSS: 6.8EPSS: 0%CPEs: 279EXPL: 0

In a Junos Fusion scenario an External Control of Critical State Data vulnerability in the Satellite Device (SD) control state machine of Juniper Networks Junos OS allows an attacker who is able to make physical changes to the cabling of the device to cause a denial of service (DoS). An SD can get rebooted and subsequently controlled by an Aggregation Device (AD) which does not belong to the original Fusion setup and is just connected to an extended port of the SD. To carry out this attack the attacker needs to have physical access to the cabling between the SD and the original AD. This issue affects: Juniper Networks Junos OS 16.1R1 and later versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S4. This issue does not affect Juniper Networks Junos OS versions prior to 16.1R1. • https://kb.juniper.net/JSA11262 • CWE-642: External Control of Critical State Data CWE-668: Exposure of Resource to Wrong Sphere •

CVSS: 7.5EPSS: 0%CPEs: 104EXPL: 0

An Insufficient Algorithmic Complexity combined with an Allocation of Resources Without Limits or Throttling vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series and MX Series with SPC3 allows an unauthenticated network attacker to cause latency in transit packet processing and even packet loss. If transit traffic includes a significant percentage (> 5%) of fragmented packets which need to be reassembled, high latency or packet drops might be observed. This issue affects Juniper Networks Junos OS on SRX Series, MX Series with SPC3: All versions prior to 18.2R3; 18.3 versions prior to 18.3R3; 18.4 versions prior to 18.4R2-S9, 18.4R3; 19.1 versions prior to 19.1R2; 19.2 versions prior to 19.2R1-S1, 19.2R2. Una Complejidad Algorítmica no Suficiente Combinada con una vulnerabilidad de Asignación de Recursos sin Límites o Estrangulamiento en el demonio de procesamiento de flujos (flowd) de Junos OS de Juniper Networks en las series SRX y MX con SPC3 permite a un atacante de red no autenticado causar latencia en el procesamiento de paquetes en tránsito e incluso la pérdida de paquetes. Si el tráfico de tránsito incluye un porcentaje significativo (más del 5%) de paquetes fragmentados que deben volver a ensamblarse, puede observarse una alta latencia o pérdidas de paquetes. • https://kb.juniper.net/JSA11261 • CWE-407: Inefficient Algorithmic Complexity CWE-770: Allocation of Resources Without Limits or Throttling •