Vulnerability-Lookup

BDU:2021-00996 (CVE-2021-0207)

Vulnerability from fstec – Published: 2021-02-25 – Updated: 2021-02-25 – View on bdu.fstec.ru Fixed

Title

Уязвимость операционной системы Junos маршрутизаторов серий NFX250, QFX5K, EX2300, EX3400 , EX4300 Multigigabit и EX4600, связанная с возникновением конфликта интерпретаций, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость операционной системы Junos маршрутизаторов серий NFX250, QFX5K, EX2300, EX3400 , EX4300 Multigigabit и EX4600 связана с возникновением конфликта интерпретаций. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, вызвать отказ в обслуживании, путем отправки специально сформированной последовательности пакетов

Severity

7.8 (High) CVSS 2.0


                      
                        AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 (High) CVSS 3.0


                      
                        CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-115 - Неправильная обработка входных данных
CWE-436 - Конфликт интерпретаций

Aliases

CVE-2021-0207

References

2 references

URL
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11097&cat=SIRT_1&actp=LIST
https://kb.juniper.net/JSA11097

Impacted products

1 product from 1 vendor

Vendors

Juniper Networks Inc.

Products

JunOS

Versions

от 18.3 до 18.3R3-S1 (JunOS), от 18.4 до 18.4R1-S5 (JunOS), от 18.4 до 18.4R2-S3 (JunOS), от 18.4 до 18.4R3 (JunOS), от 19.2 до 19.2R2 (JunOS), от 19.2 до 19.2R1-S5 (JunOS), от 17.4 до 17.4R2-S11 (JunOS), от 17.4 до 17.4R3-S3 (JunOS), от 19.3 до 19.3R3 (JunOS), от 17.3 до 17.3R3-S7 (JunOS), от 18.1 до 18.1R3-S9 (JunOS), от 18.2 до 18.2R3-S3 (JunOS), от 19.1 до 19.1R1-S5 (JunOS), от 19.1 до 19.1R2-S1 (JunOS), от 19.1 до 19.1R3 (JunOS), от 19.3 до 19.3R2-S3 (JunOS), от 19.4 до 19.4R1-S2 (JunOS), от 19.4 до 19.4R2 (JunOS)

Product types

Operating system

Platforms

Juniper Networks Inc. JunOS от 18.3 до 18.3R3-S1 EX4300, Juniper Networks Inc. JunOS от 18.4 до 18.4R1-S5 EX4300, Juniper Networks Inc. JunOS от 18.4 до 18.4R2-S3 EX4300, Juniper Networks Inc. JunOS от 18.4 до 18.4R3 EX4300, Juniper Networks Inc. JunOS от 19.2 до 19.2R2 EX4300, Juniper Networks Inc. JunOS от 19.2 до 19.2R1-S5 NFX250, Juniper Networks Inc. JunOS от 17.4 до 17.4R2-S11 EX4600, Juniper Networks Inc. JunOS от 17.4 до 17.4R3-S3 EX4600, Juniper Networks Inc. JunOS от 19.2 до 19.2R1-S5 EX4600, Juniper Networks Inc. JunOS от 19.3 до 19.3R3 EX4600, Juniper Networks Inc. JunOS от 17.4 до 17.4R2-S11 QFX5K, Juniper Networks Inc. JunOS от 17.4 до 17.4R3-S3 QFX5K, Juniper Networks Inc. JunOS от 19.2 до 19.2R1-S5 QFX5K, Juniper Networks Inc. JunOS от 19.3 до 19.3R3 QFX5K, Juniper Networks Inc. JunOS от 17.3 до 17.3R3-S7 NFX250, Juniper Networks Inc. JunOS от 17.3 до 17.3R3-S7 QFX5K, Juniper Networks Inc. JunOS от 17.3 до 17.3R3-S7 EX4600, Juniper Networks Inc. JunOS от 17.4 до 17.4R2-S11 NFX250, Juniper Networks Inc. JunOS от 17.4 до 17.4R3-S3 NFX250, Juniper Networks Inc. JunOS от 18.1 до 18.1R3-S9 NFX250, Juniper Networks Inc. JunOS от 18.1 до 18.1R3-S9 QFX5K, Juniper Networks Inc. JunOS от 18.1 до 18.1R3-S9 EX2300, Juniper Networks Inc. JunOS от 18.1 до 18.1R3-S9 EX4300, Juniper Networks Inc. JunOS от 18.1 до 18.1R3-S9 EX4600, Juniper Networks Inc. JunOS от 18.2 до 18.2R3-S3 NFX250, Juniper Networks Inc. JunOS от 18.2 до 18.2R3-S3 QFX5K, Juniper Networks Inc. JunOS от 18.2 до 18.2R3-S3 EX2300, Juniper Networks Inc. JunOS от 18.2 до 18.2R3-S3 EX3400, Juniper Networks Inc. JunOS от 18.2 до 18.2R3-S3 EX4300, Juniper Networks Inc. JunOS от 18.2 до 18.2R3-S3 EX4600, Juniper Networks Inc. JunOS от 18.3 до 18.3R3-S1 NFX250, Juniper Networks Inc. JunOS от 18.3 до 18.3R3-S1 QFX5K, Juniper Networks Inc. JunOS от 18.3 до 18.3R3-S1 EX2300, Juniper Networks Inc. JunOS от 18.3 до 18.3R3-S1 EX3400, Juniper Networks Inc. JunOS от 18.3 до 18.3R3-S1 EX4600, Juniper Networks Inc. JunOS от 18.4 до 18.4R1-S5 NFX250, Juniper Networks Inc. JunOS от 18.4 до 18.4R1-S5 QFX5K, Juniper Networks Inc. JunOS от 18.4 до 18.4R1-S5 EX2300, Juniper Networks Inc. JunOS от 18.4 до 18.4R1-S5 EX3400, Juniper Networks Inc. JunOS от 18.4 до 18.4R1-S5 EX4600, Juniper Networks Inc. JunOS от 18.4 до 18.4R2-S3 NFX250, Juniper Networks Inc. JunOS от 18.4 до 18.4R2-S3 QFX5K, Juniper Networks Inc. JunOS от 18.4 до 18.4R2-S3 EX2300, Juniper Networks Inc. JunOS от 18.4 до 18.4R2-S3 EX3400, Juniper Networks Inc. JunOS от 18.4 до 18.4R2-S3 EX4600, Juniper Networks Inc. JunOS от 18.4 до 18.4R3 NFX250, Juniper Networks Inc. JunOS от 18.4 до 18.4R3 QFX5K, Juniper Networks Inc. JunOS от 18.4 до 18.4R3 EX2300, Juniper Networks Inc. JunOS от 18.4 до 18.4R3 EX3400, Juniper Networks Inc. JunOS от 18.4 до 18.4R3 EX4600, Juniper Networks Inc. JunOS от 19.1 до 19.1R1-S5 NFX250, Juniper Networks Inc. JunOS от 19.1 до 19.1R1-S5 QFX5K, Juniper Networks Inc. JunOS от 19.1 до 19.1R1-S5 EX2300, Juniper Networks Inc. JunOS от 19.1 до 19.1R1-S5 EX3400, Juniper Networks Inc. JunOS от 19.1 до 19.1R1-S5 EX4300, Juniper Networks Inc. JunOS от 19.1 до 19.1R1-S5 EX4600, Juniper Networks Inc. JunOS от 19.1 до 19.1R2-S1 NFX250, Juniper Networks Inc. JunOS от 19.1 до 19.1R2-S1 EX2300, Juniper Networks Inc. JunOS от 19.1 до 19.1R2-S1 EX3400, Juniper Networks Inc. JunOS от 19.1 до 19.1R2-S1 EX4300, Juniper Networks Inc. JunOS от 19.1 до 19.1R2-S1 EX4600, Juniper Networks Inc. JunOS от 19.1 до 19.1R3 NFX250, Juniper Networks Inc. JunOS от 19.1 до 19.1R3 QFX5K, Juniper Networks Inc. JunOS от 19.1 до 19.1R3 EX3400, Juniper Networks Inc. JunOS от 19.1 до 19.1R3 EX4300, Juniper Networks Inc. JunOS от 19.1 до 19.1R3 EX4600, Juniper Networks Inc. JunOS от 19.2 до 19.2R1-S5 EX2300, Juniper Networks Inc. JunOS от 19.2 до 19.2R1-S5 EX3400, Juniper Networks Inc. JunOS от 19.2 до 19.2R1-S5 EX4300, Juniper Networks Inc. JunOS от 19.2 до 19.2R2 NFX250, Juniper Networks Inc. JunOS от 19.2 до 19.2R2 QFX5K, Juniper Networks Inc. JunOS от 19.2 до 19.2R2 EX2300, Juniper Networks Inc. JunOS от 19.2 до 19.2R2 EX3400, Juniper Networks Inc. JunOS от 19.2 до 19.2R2 EX4600, Juniper Networks Inc. JunOS от 19.3 до 19.3R2-S3 NFX250, Juniper Networks Inc. JunOS от 19.3 до 19.3R2-S3 QFX5K, Juniper Networks Inc. JunOS от 19.3 до 19.3R2-S3 EX2300, Juniper Networks Inc. JunOS от 19.3 до 19.3R2-S3 EX3400, Juniper Networks Inc. JunOS от 19.3 до 19.3R2-S3 EX4300, Juniper Networks Inc. JunOS от 19.3 до 19.3R2-S3 EX4600, Juniper Networks Inc. JunOS от 19.3 до 19.3R3 NFX250, Juniper Networks Inc. JunOS от 19.3 до 19.3R3 EX2300, Juniper Networks Inc. JunOS от 19.3 до 19.3R3 EX3400, Juniper Networks Inc. JunOS от 19.3 до 19.3R3 EX4300, Juniper Networks Inc. JunOS от 19.4 до 19.4R1-S2 NFX250, Juniper Networks Inc. JunOS от 19.4 до 19.4R1-S2 NFX350, Juniper Networks Inc. JunOS от 19.4 до 19.4R1-S2 QFX5K, Juniper Networks Inc. JunOS от 19.4 до 19.4R1-S2 EX2300, Juniper Networks Inc. JunOS от 19.4 до 19.4R1-S2 EX3400, Juniper Networks Inc. JunOS от 19.4 до 19.4R1-S2 EX4300, Juniper Networks Inc. JunOS от 19.4 до 19.4R1-S2 EX4600, Juniper Networks Inc. JunOS от 19.4 до 19.4R2 NFX250, Juniper Networks Inc. JunOS от 19.4 до 19.4R2 NFX350, Juniper Networks Inc. JunOS от 19.4 до 19.4R2 EX2300, Juniper Networks Inc. JunOS от 19.4 до 19.4R2 EX3400, Juniper Networks Inc. JunOS от 19.4 до 19.4R2 EX4300, Juniper Networks Inc. JunOS от 19.4 до 19.4R2 EX4600

Mitigations

Использование рекомендаций: https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11097&cat=SIRT_1&actp=LIST

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Juniper Networks Inc.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u043e\u0442 18.3 \u0434\u043e 18.3R3-S1 (JunOS), \u043e\u0442 18.4 \u0434\u043e 18.4R1-S5 (JunOS), \u043e\u0442 18.4 \u0434\u043e 18.4R2-S3 (JunOS), \u043e\u0442 18.4 \u0434\u043e 18.4R3 (JunOS), \u043e\u0442 19.2 \u0434\u043e 19.2R2 (JunOS), \u043e\u0442 19.2 \u0434\u043e 19.2R1-S5 (JunOS), \u043e\u0442 17.4 \u0434\u043e 17.4R2-S11 (JunOS), \u043e\u0442 17.4 \u0434\u043e 17.4R3-S3 (JunOS), \u043e\u0442 19.3 \u0434\u043e 19.3R3 (JunOS), \u043e\u0442 17.3 \u0434\u043e 17.3R3-S7 (JunOS), \u043e\u0442 18.1 \u0434\u043e 18.1R3-S9 (JunOS), \u043e\u0442 18.2 \u0434\u043e 18.2R3-S3 (JunOS), \u043e\u0442 19.1 \u0434\u043e 19.1R1-S5 (JunOS), \u043e\u0442 19.1 \u0434\u043e 19.1R2-S1 (JunOS), \u043e\u0442 19.1 \u0434\u043e 19.1R3 (JunOS), \u043e\u0442 19.3 \u0434\u043e 19.3R2-S3 (JunOS), \u043e\u0442 19.4 \u0434\u043e 19.4R1-S2 (JunOS), \u043e\u0442 19.4 \u0434\u043e 19.4R2 (JunOS)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\nhttps://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA11097\u0026cat=SIRT_1\u0026actp=LIST",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "13.01.2021",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "25.02.2021",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "25.02.2021",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2021-00996",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2021-0207",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "JunOS",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Juniper Networks Inc. JunOS \u043e\u0442 18.3 \u0434\u043e 18.3R3-S1 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R1-S5 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R2-S3 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R3 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R2 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R1-S5 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 17.4 \u0434\u043e 17.4R2-S11 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 17.4 \u0434\u043e 17.4R3-S3 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R1-S5 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R3 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 17.4 \u0434\u043e 17.4R2-S11 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 17.4 \u0434\u043e 17.4R3-S3 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R1-S5 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R3 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 17.3 \u0434\u043e 17.3R3-S7 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 17.3 \u0434\u043e 17.3R3-S7 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 17.3 \u0434\u043e 17.3R3-S7 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 17.4 \u0434\u043e 17.4R2-S11 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 17.4 \u0434\u043e 17.4R3-S3 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 18.1 \u0434\u043e 18.1R3-S9 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 18.1 \u0434\u043e 18.1R3-S9 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 18.1 \u0434\u043e 18.1R3-S9 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 18.1 \u0434\u043e 18.1R3-S9 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 18.1 \u0434\u043e 18.1R3-S9 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 18.2 \u0434\u043e 18.2R3-S3 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 18.2 \u0434\u043e 18.2R3-S3 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 18.2 \u0434\u043e 18.2R3-S3 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 18.2 \u0434\u043e 18.2R3-S3 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 18.2 \u0434\u043e 18.2R3-S3 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 18.2 \u0434\u043e 18.2R3-S3 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 18.3 \u0434\u043e 18.3R3-S1 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 18.3 \u0434\u043e 18.3R3-S1 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 18.3 \u0434\u043e 18.3R3-S1 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 18.3 \u0434\u043e 18.3R3-S1 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 18.3 \u0434\u043e 18.3R3-S1 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R1-S5 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R1-S5 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R1-S5 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R1-S5 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R1-S5 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R2-S3 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R2-S3 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R2-S3 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R2-S3 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R2-S3 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R3 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R3 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R3 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R3 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 18.4 \u0434\u043e 18.4R3 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R1-S5 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R1-S5 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R1-S5 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R1-S5 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R1-S5 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R1-S5 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R2-S1 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R2-S1 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R2-S1 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R2-S1 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R2-S1 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R3 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R3 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R3 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R3 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 19.1 \u0434\u043e 19.1R3 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R1-S5 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R1-S5 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R1-S5 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R2 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R2 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R2 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R2 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 19.2 \u0434\u043e 19.2R2 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R2-S3 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R2-S3 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R2-S3 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R2-S3 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R2-S3 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R2-S3 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R3 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R3 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R3 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 19.3 \u0434\u043e 19.3R3 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R1-S2 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R1-S2 NFX350, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R1-S2 QFX5K, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R1-S2 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R1-S2 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R1-S2 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R1-S2 EX4600, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R2 NFX250, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R2 NFX350, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R2 EX2300, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R2 EX3400, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R2 EX4300, Juniper Networks Inc. JunOS \u043e\u0442 19.4 \u0434\u043e 19.4R2 EX4600",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Junos \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u043e\u0432 \u0441\u0435\u0440\u0438\u0439 NFX250, QFX5K, EX2300, EX3400 , EX4300 Multigigabit \u0438 EX4600, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u0432\u043e\u0437\u043d\u0438\u043a\u043d\u043e\u0432\u0435\u043d\u0438\u0435\u043c \u043a\u043e\u043d\u0444\u043b\u0438\u043a\u0442\u0430 \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0446\u0438\u0439, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u0430\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 (CWE-115), \u041a\u043e\u043d\u0444\u043b\u0438\u043a\u0442 \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0446\u0438\u0439 (CWE-436)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Junos \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u043e\u0432 \u0441\u0435\u0440\u0438\u0439 NFX250, QFX5K, EX2300, EX3400 , EX4300 Multigigabit \u0438 EX4600 \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0432\u043e\u0437\u043d\u0438\u043a\u043d\u043e\u0432\u0435\u043d\u0438\u0435\u043c \u043a\u043e\u043d\u0444\u043b\u0438\u043a\u0442\u0430 \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0446\u0438\u0439. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438, \u043f\u0443\u0442\u0435\u043c \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043f\u0430\u043a\u0435\u0442\u043e\u0432",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA11097\u0026cat=SIRT_1\u0026actp=LIST\nhttps://kb.juniper.net/JSA11097",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-115, CWE-436",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,8)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,5)"
}

CVE-2021-0207 (GCVE-0-2021-0207)

Vulnerability from cvelistv5 – Published: 2021-01-15 17:35 – Updated: 2024-09-17 02:21

Title

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.

Summary

An improper interpretation conflict of certain data between certain software components within the Juniper Networks Junos OS devices does not allow certain traffic to pass through the device upon receipt from an ingress interface filtering certain specific types of traffic which is then being redirected to an egress interface on a different VLAN. This causes a Denial of Service (DoS) to those clients sending these particular types of traffic. Such traffic being sent by a client may appear genuine, but is non-standard in nature and should be considered as potentially malicious, and can be targeted to the device, or destined through it for the issue to occur. This issues affects IPv4 and IPv6 traffic. An indicator of compromise may be found by checking log files. You may find that traffic on the input interface has 100% of traffic flowing into the device, yet the egress interface shows 0 pps leaving the device. For example: [show interfaces "interface" statistics detail] Output between two interfaces would reveal something similar to: 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) -------------------- Dropped packets will not show up in DDoS monitoring/protection counters as issue is not caused by anti-DDoS protection mechanisms. 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.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-436 - Interpretation Conflict
CWE-115 - Misinterpretation of Input
Denial of Service (DoS)

Assigner

juniper mitre root Scorecard

References

1 reference

URL	Tags
https://kb.juniper.net/JSA11097	x_refsource_CONFIRM

Impacted products

5 products

Vendor	Product	Version
Juniper Networks	Junos OS	Affected: 17.3 , < 17.3R3-S7 (custom) Affected: 17.4 , < 17.4R2-S11, 17.4R3-S3 (custom)
Juniper Networks	Junos OS	Affected: 18.1 , < 18.1R3-S9 (custom)
Juniper Networks	Junos OS	Affected: 18.2 , < 18.2R3-S3 (custom)
Juniper Networks	Junos OS	Affected: 18.3 , < 18.3R3-S1 (custom) Affected: 18.4 , < 18.4R1-S5, 18.4R2-S3, 18.4R3 (custom) Affected: 19.1 , < 19.1R1-S5, 19.1R2-S1, 19.1R3 (custom) Affected: 19.2 , < 19.2R1-S5, 19.2R2 (custom) Affected: 19.3 , < 19.3R2-S3, 19.3R3 (custom)
Juniper Networks	Junos OS	Affected: 19.4 , < 19.4R1-S2, 19.4R2 (custom)

Date Public

2021-01-13 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T15:32:10.091Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kb.juniper.net/JSA11097"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "platforms": [
            "NFX250, QFX5K Series, EX4600"
          ],
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "17.3R3-S7",
              "status": "affected",
              "version": "17.3",
              "versionType": "custom"
            },
            {
              "lessThan": "17.4R2-S11, 17.4R3-S3",
              "status": "affected",
              "version": "17.4",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4600"
          ],
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "18.1R3-S9",
              "status": "affected",
              "version": "18.1",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600"
          ],
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "18.2R3-S3",
              "status": "affected",
              "version": "18.2",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series"
          ],
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "18.3R3-S1",
              "status": "affected",
              "version": "18.3",
              "versionType": "custom"
            },
            {
              "lessThan": "18.4R1-S5, 18.4R2-S3, 18.4R3",
              "status": "affected",
              "version": "18.4",
              "versionType": "custom"
            },
            {
              "lessThan": "19.1R1-S5, 19.1R2-S1, 19.1R3",
              "status": "affected",
              "version": "19.1",
              "versionType": "custom"
            },
            {
              "lessThan": "19.2R1-S5, 19.2R2",
              "status": "affected",
              "version": "19.2",
              "versionType": "custom"
            },
            {
              "lessThan": "19.3R2-S3, 19.3R3",
              "status": "affected",
              "version": "19.3",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "NFX250, NFX350, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series"
          ],
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "19.4R1-S2, 19.4R2",
              "status": "affected",
              "version": "19.4",
              "versionType": "custom"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "value": "The following minimal configuration is required on two interfaces passing traffic on different vlans between each other:\n  set interfaces [interface] unit [unit] family ethernet-switching vlan members [name]\n  set vlans [name] vlan-id [unit]"
        }
      ],
      "datePublic": "2021-01-13T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An improper interpretation conflict of certain data between certain software components within the Juniper Networks Junos OS devices does not allow certain traffic to pass through the device upon receipt from an ingress interface filtering certain specific types of traffic which is then being redirected to an egress interface on a different VLAN. This causes a Denial of Service (DoS) to those clients sending these particular types of traffic. Such traffic being sent by a client may appear genuine, but is non-standard in nature and should be considered as potentially malicious, and can be targeted to the device, or destined through it for the issue to occur. This issues affects IPv4 and IPv6 traffic. An indicator of compromise may be found by checking log files. You may find that traffic on the input interface has 100% of traffic flowing into the device, yet the egress interface shows 0 pps leaving the device. For example: [show interfaces \"interface\" statistics detail] Output between two interfaces would reveal something similar to: 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) -------------------- Dropped packets will not show up in DDoS monitoring/protection counters as issue is not caused by anti-DDoS protection mechanisms. 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."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-436",
              "description": "CWE-436 Interpretation Conflict",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-115",
              "description": "CWE-115 Misinterpretation of Input",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "description": "Denial of Service (DoS)",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-15T17:35:54.000Z",
        "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "shortName": "juniper"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kb.juniper.net/JSA11097"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "The following software releases have been updated to resolve this specific issue: 17.3R3-S7, 17.4R2-S11, 17.4R3-S3, 18.1R3-S9, 18.2R3-S3, 18.3R3-S1, 18.4R1-S5, 18.4R2-S3, 18.4R3, 19.1R1-S5, 19.1R2-S1, 19.1R3, 19.2R1-S5, 19.2R2, 19.3R2-S3, 19.3R3, 19.4R1-S2, 19.4R2, 20.1R1 and all subsequent releases."
        }
      ],
      "source": {
        "advisory": "JSA11097",
        "defect": [
          "1429543"
        ],
        "discovery": "USER"
      },
      "title": "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.",
      "workarounds": [
        {
          "lang": "en",
          "value": "There are no available workarounds for this issue."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "sirt@juniper.net",
          "DATE_PUBLIC": "2021-01-13T17:00:00.000Z",
          "ID": "CVE-2021-0207",
          "STATE": "PUBLIC",
          "TITLE": "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."
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Junos OS",
                      "version": {
                        "version_data": [
                          {
                            "platform": "NFX250, QFX5K Series, EX4600",
                            "version_affected": "\u003c",
                            "version_name": "17.3",
                            "version_value": "17.3R3-S7"
                          },
                          {
                            "platform": "NFX250, QFX5K Series, EX4600",
                            "version_affected": "\u003c",
                            "version_name": "17.4",
                            "version_value": "17.4R2-S11, 17.4R3-S3"
                          },
                          {
                            "platform": "NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4600",
                            "version_affected": "\u003c",
                            "version_name": "18.1",
                            "version_value": "18.1R3-S9"
                          },
                          {
                            "platform": "NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600",
                            "version_affected": "\u003c",
                            "version_name": "18.2",
                            "version_value": "18.2R3-S3"
                          },
                          {
                            "platform": "NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series",
                            "version_affected": "\u003c",
                            "version_name": "18.3",
                            "version_value": "18.3R3-S1"
                          },
                          {
                            "platform": "NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series",
                            "version_affected": "\u003c",
                            "version_name": "18.4",
                            "version_value": "18.4R1-S5, 18.4R2-S3, 18.4R3"
                          },
                          {
                            "platform": "NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series",
                            "version_affected": "\u003c",
                            "version_name": "19.1",
                            "version_value": "19.1R1-S5, 19.1R2-S1, 19.1R3"
                          },
                          {
                            "platform": "NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series",
                            "version_affected": "\u003c",
                            "version_name": "19.2",
                            "version_value": "19.2R1-S5, 19.2R2"
                          },
                          {
                            "platform": "NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series",
                            "version_affected": "\u003c",
                            "version_name": "19.3",
                            "version_value": "19.3R2-S3, 19.3R3"
                          },
                          {
                            "platform": "NFX250, NFX350, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series",
                            "version_affected": "\u003c",
                            "version_name": "19.4",
                            "version_value": "19.4R1-S2, 19.4R2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Juniper Networks"
              }
            ]
          }
        },
        "configuration": [
          {
            "lang": "en",
            "value": "The following minimal configuration is required on two interfaces passing traffic on different vlans between each other:\n  set interfaces [interface] unit [unit] family ethernet-switching vlan members [name]\n  set vlans [name] vlan-id [unit]"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An improper interpretation conflict of certain data between certain software components within the Juniper Networks Junos OS devices does not allow certain traffic to pass through the device upon receipt from an ingress interface filtering certain specific types of traffic which is then being redirected to an egress interface on a different VLAN. This causes a Denial of Service (DoS) to those clients sending these particular types of traffic. Such traffic being sent by a client may appear genuine, but is non-standard in nature and should be considered as potentially malicious, and can be targeted to the device, or destined through it for the issue to occur. This issues affects IPv4 and IPv6 traffic. An indicator of compromise may be found by checking log files. You may find that traffic on the input interface has 100% of traffic flowing into the device, yet the egress interface shows 0 pps leaving the device. For example: [show interfaces \"interface\" statistics detail] Output between two interfaces would reveal something similar to: 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) -------------------- Dropped packets will not show up in DDoS monitoring/protection counters as issue is not caused by anti-DDoS protection mechanisms. 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."
            }
          ]
        },
        "exploit": [
          {
            "lang": "en",
            "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
          }
        ],
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
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            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        },
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          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-436 Interpretation Conflict"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-115 Misinterpretation of Input"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Denial of Service (DoS)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kb.juniper.net/JSA11097",
              "refsource": "CONFIRM",
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            }
          ]
        },
        "solution": [
          {
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            "value": "The following software releases have been updated to resolve this specific issue: 17.3R3-S7, 17.4R2-S11, 17.4R3-S3, 18.1R3-S9, 18.2R3-S3, 18.3R3-S1, 18.4R1-S5, 18.4R2-S3, 18.4R3, 19.1R1-S5, 19.1R2-S1, 19.1R3, 19.2R1-S5, 19.2R2, 19.3R2-S3, 19.3R3, 19.4R1-S2, 19.4R2, 20.1R1 and all subsequent releases."
          }
        ],
        "source": {
          "advisory": "JSA11097",
          "defect": [
            "1429543"
          ],
          "discovery": "USER"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "There are no available workarounds for this issue."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
    "assignerShortName": "juniper",
    "cveId": "CVE-2021-0207",
    "datePublished": "2021-01-15T17:35:54.872Z",
    "dateReserved": "2020-10-27T00:00:00.000Z",
    "dateUpdated": "2024-09-17T02:21:57.975Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

BDU:2021-00996 (CVE-2021-0207)

CVE-2021-0207 (GCVE-0-2021-0207)

Tags

Sightings

Nomenclature

Related by attack behaviour