CVE-2021-0207
Vulnerability from cvelistv5
Published
2021-01-15 17:35
Modified
2024-09-17 02:21
Severity ?
EPSS score ?
Summary
NFX250, NFX350, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series: Certain genuine traffic received by the Junos OS device will be discarded instead of forwarded.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| sirt@juniper.net | https://kb.juniper.net/JSA11097 | Vendor Advisory |
Impacted products
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This issue affects: Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S7 on NFX250, QFX5K Series, EX4600; 17.4 versions prior to 17.4R2-S11, 17.4R3-S3 on NFX250, QFX5K Series, EX4600; 18.1 versions prior to 18.1R3-S9 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4600; 18.2 versions prior to 18.2R3-S3 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600; 18.3 versions prior to 18.3R3-S1 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series; 19.1 versions prior to 19.1R1-S5, 19.1R2-S1, 19.1R3 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series; 19.2 versions prior to 19.2R1-S5, 19.2R2 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series; 19.3 versions prior to 19.3R2-S3, 19.3R3 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series; 19.4 versions prior to 19.4R1-S2, 19.4R2 on NFX250, NFX350, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series. This issue does not affect Junos OS releases prior to 17.2R2.\"},{\"lang\":\"es\",\"value\":\"Un conflicto de interpretaci\u00f3n incorrecta de determinados datos entre ciertos componentes de software dentro de los dispositivos de Juniper Networks Junos OS no permite que determinado tr\u00e1fico pase a trav\u00e9s del dispositivo al recibirlo desde una interfaz de entrada que filtra ciertos tipos espec\u00edficos de tr\u00e1fico que luego se redirecciona a una interfaz de salida en una VLAN diferente.\u0026#xa0;Esto causa una Denegaci\u00f3n de Servicio (DoS) a aquellos clientes que env\u00edan estos tipos particulares de tr\u00e1fico.\u0026#xa0;Dicho tr\u00e1fico enviado por un cliente puede parecer genuino, pero no es de naturaleza est\u00e1ndar y debe ser considerado potencialmente malicioso, y puede dirigirse al dispositivo o destinarse por medio de \u00e9l para que ocurra el problema.\u0026#xa0;Este problema afecta al tr\u00e1fico IPv4 e IPv6.\u0026#xa0;Se puede encontrar un indicador de compromiso al verificar los archivos de registro.\u0026#xa0;Puede encontrar que el tr\u00e1fico en la interfaz de entrada tiene el 100% del tr\u00e1fico que fluye hacia el dispositivo, pero la interfaz de salida muestra 0 pps saliendo del dispositivo.\u0026#xa0;Por ejemplo: [show interfaces \\\"interface\\\" statistics detail] La salida entre dos interfaces revelar\u00eda algo similar a: Ingress, first interface: -------------------- Interface Link Input packets (pps) Output packets (pps) et-0/0/0 Up 9999999999 (9999) 1 (0) -------------------- Egress, second interface: -------------------- Interface Link Input packets (pps) Output packets (pps) et-0/0/1 Up 0 (0) 9999999999 (0) -------------------- Los paquetes descartados no aparecer\u00e1n en los contadores de protecci\u00f3n/monitoreo de DDoS ya que el problema no es causado por mecanismos de protecci\u00f3n anti-DDoS.\u0026#xa0;Este problema afecta a: Juniper Networks Junos OS: versiones 17.3 anteriores a 17.3R3-S7 en Series NFX250, QFX5K, EX4600;\u0026#xa0;versiones 17.\u0026#xa0;4 anteriores a 17.4R2-S11, 17.4R3-S3 en Series NFX250, QFX5K, EX4600;\u0026#xa0;versiones 18.1 anteriores a 18.1R3-S9 en NFX250, Serie QFX5K, Serie EX2300, Serie EX3400, EX4600;\u0026#xa0;versiones 18.2 anteriores a 18.2R3-S3 en NFX250, Serie QFX5K, Serie EX2300, Serie EX3400, EX4300 Multigigabit, EX4600;\u0026#xa0;versiones 18.3 anteriores a 18.3R3-S1 en Series NFX250, QFX5K, Serie EX2300, Serie EX3400, EX4300 Multigigabit, Serie EX4600;\u0026#xa0;versiones 18.4 anteriores a 18.4R1-S5, 18.4R2-S3, 18.4R3 en NFX250, Serie QFX5K, Serie EX2300, Serie EX3400, EX4300 Multigigabit, Serie EX4600;\u0026#xa0;versiones 19.1 anteriores a 19.1R1-S5, 19.1R2-S1, 19.1R3 en NFX250, Serie QFX5K, Serie EX2300, Serie EX3400, EX4300 Multigigabit, Serie EX4600;\u0026#xa0;versiones 19.2 anteriores a 19.2R1-S5, 19.2R2 en NFX250, Serie QFX5K, Serie EX2300, Serie EX3400, Serie EX4300 Multigigabit, Serie EX4600;\u0026#xa0;versiones 19.3 anteriores a 19.\u0026#xa0;3R2-S3, 19.3R3 en NFX250, Serie QFX5K, Serie EX2300, Serie EX3400, EX4300 Multigigabit, Serie EX4600;\u0026#xa0;versiones 19.4 anteriores a 19.4R1-S2, 19.4R2 en NFX250, NFX350, Serie QFX5K, Serie EX2300, Serie EX3400, EX4300 Multigigabit, Serie EX4600.\u0026#xa0;Este problema no afecta a las versiones de Junos OS anteriores a 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Advisory\"]}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.