CVE-2020-1609: Junos OS and Junos OS Evolved: A vulnerability in JDHCPD allows an attacker to send crafted IPv6 packets and arbitrarily execute commands on the target device.

Published Jan 15, 2020
·
Updated

When a device using Juniper Network's Dynamic Host Configuration Protocol Daemon (JDHCPD) process on Junos OS or Junos OS Evolved which is configured in relay mode it vulnerable to an attacker sending crafted IPv6 packets who may then arbitrarily execute commands as root on the target device. This issue affects IPv6 JDHCPD services. This issue affects: Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D200; 15.1X53 versions prior to 15.1X53-D592; 16.1 versions prior to 16.1R7-S6; 16.2 versions prior to 16.2R2-S11; 17.1 versions prior to 17.1R2-S11, 17.1R3-S1; 17.2 versions prior to 17.2R2-S8, 17.2R3-S3; 17.3 versions prior to 17.3R3-S6; 17.4 versions prior to 17.4R2-S7, 17.4R3; 18.1 versions prior to 18.1R3-S8; 18.2 versions prior to 18.2R3-S2; 18.2X75 versions prior to 18.2X75-D60; 18.3 versions prior to 18.3R1-S6, 18.3R2-S2, 18.3R3; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3; 19.1 versions prior to 19.1R1-S3, 19.1R2; 19.2 versions prior to 19.2R1-S3, 19.2R2. and All versions prior to 19.3R1 on Junos OS Evolved. This issue do not affect versions of Junos OS prior to 15.1, or JDHCPD operating as a local server in non-relay mode.

Affected Software

145 affected components
Juniper Junos=15.1-r7
Juniper Junos=15.1-r7-s1
Juniper Junos=15.1-r7-s2
Juniper Junos=15.1-r7-s3
Juniper Junos=15.1-r7-s4
Juniper Junos=15.1-r7-s5
Juniper Junos=15.1x49-d10
Juniper Junos=15.1x49-d110
Juniper Junos=15.1x49-d140
Juniper Junos=15.1x49-d150
Juniper Junos=15.1x49-d170
Juniper Junos=15.1x49-d180
Juniper Junos=15.1x49-d190
Juniper Junos=15.1x49-d20
Juniper Junos=15.1x49-d30
Juniper Junos=15.1x49-d35
Juniper Junos=15.1x49-d40
Juniper Junos=15.1x49-d50
Juniper Junos=15.1x49-d55
Juniper Junos=15.1x49-d60
Juniper Junos=15.1x49-d65
Juniper Junos=15.1x49-d70
Juniper Junos=15.1x49-d75
Juniper Junos=15.1x49-d80
Juniper Junos=15.1x49-d90
Juniper Junos=15.1x53-d20
Juniper Junos=15.1x53-d21
Juniper Junos=15.1x53-d210
Juniper Junos=15.1x53-d25
Juniper Junos=15.1x53-d30
Juniper Junos=15.1x53-d31
Juniper Junos=15.1x53-d32
Juniper Junos=15.1x53-d33
Juniper Junos=15.1x53-d34
Juniper Junos=15.1x53-d40
Juniper Junos=15.1x53-d45
Juniper Junos=15.1x53-d470
Juniper Junos=15.1x53-d495
Juniper Junos=15.1x53-d56
Juniper Junos=15.1x53-d591
Juniper Junos=15.1x53-d60
Juniper Junos=15.1x53-d61
Juniper Junos=15.1x53-d62
Juniper Junos=15.1x53-d63
Juniper Junos=15.1x53-d65
Juniper Junos=15.1x53-d70
Juniper Junos=16.1
Juniper Junos=16.1-r1
Juniper Junos=16.1-r2
Juniper Junos=16.1-r3
Juniper Junos=16.1-r3-s10
Juniper Junos=16.1-r4
Juniper Junos=16.1-r5-s4
Juniper Junos=16.1-r6-s1
Juniper Junos=16.1-r7
Juniper Junos=16.1-r7-s4
Juniper Junos=16.1-r7-s5
Juniper Junos=16.2
Juniper Junos=16.2-r1
Juniper Junos=16.2-r2
Juniper Junos=16.2-r2-s1
Juniper Junos=16.2-r2-s2
Juniper Junos=16.2-r2-s5
Juniper Junos=16.2-r2-s6
Juniper Junos=16.2-r2-s7
Juniper Junos=16.2-r2-s8
Juniper Junos=16.2-r2-s9
Juniper Junos=17.1
Juniper Junos=17.1-r1
Juniper Junos=17.1-r2-s1
Juniper Junos=17.1-r2-s10
Juniper Junos=17.1-r2-s2
Juniper Junos=17.1-r2-s3
Juniper Junos=17.1-r2-s4
Juniper Junos=17.1-r2-s5
Juniper Junos=17.1-r2-s6
Juniper Junos=17.1-r2-s7
Juniper Junos=17.1-r3
Juniper Junos=17.2
Juniper Junos=17.2-r1-s2
Juniper Junos=17.2-r1-s4
Juniper Junos=17.2-r1-s7
Juniper Junos=17.2-r1-s8
Juniper Junos=17.2-r2-s6
Juniper Junos=17.2-r2-s7
Juniper Junos=17.2-r3-s1
Juniper Junos=17.2-r3-s2
Juniper Junos=17.3
Juniper Junos=17.3-r1-s1
Juniper Junos=17.3-r2
Juniper Junos=17.3-r2-s1
Juniper Junos=17.3-r2-s2
Juniper Junos=17.3-r3-s1
Juniper Junos=17.3-r3-s2
Juniper Junos=17.3-r3-s3
Juniper Junos=17.3-r3-s4
Juniper Junos=17.3-r3-s5
Juniper Junos=17.4
Juniper Junos=17.4-r1
Juniper Junos=17.4-r1-s1
Juniper Junos=17.4-r1-s2
Juniper Junos=17.4-r1-s4
Juniper Junos=17.4-r1-s6
Juniper Junos=17.4-r1-s7
Juniper Junos=17.4-r2
Juniper Junos=17.4-r2-s1
Juniper Junos=17.4-r2-s3
Juniper Junos=17.4-r2-s4
Juniper Junos=17.4-r2-s5
Juniper Junos=17.4-r2-s6
Juniper Junos=18.1-r3-s5
Juniper Junos=18.1-r3-s6
Juniper Junos=18.1-r3-s7
Juniper Junos=18.2
Juniper Junos=18.2-r1-s5
Juniper Junos=18.2-r2-s1
Juniper Junos=18.2-r2-s2
Juniper Junos=18.2-r2-s3
Juniper Junos=18.2-r2-s4
Juniper Junos=18.2-r3
Juniper Junos=18.2-r3-s1
Juniper Junos=18.2x75
Juniper Junos=18.2x75-d20
Juniper Junos=18.2x75-d40
Juniper Junos=18.3
Juniper Junos=18.3-r1
Juniper Junos=18.3-r1-s1
Juniper Junos=18.3-r1-s2
Juniper Junos=18.3-r1-s3
Juniper Junos=18.3-r1-s4
Juniper Junos=18.3-r1-s5
Juniper Junos=18.3-r2
Juniper Junos=18.4
Juniper Junos=18.4-r1
Juniper Junos=18.4-r1-s1
Juniper Junos=18.4-r1-s2
Juniper Junos=18.4-r1-s3
Juniper Junos=18.4-r1-s4
Juniper Junos=18.4-r2
Juniper Junos=19.1-r1
Juniper Junos=19.1-r1-s1
Juniper Junos=19.1-r1-s2
Juniper Junos=19.2-r1
Juniper Junos=19.2-r1-s1
Juniper Junos=19.2-r1-s2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Junos OS Evolved (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 19.3R1
  2. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 15.1R7-S6
  3. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 15.1X49-D200
  4. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 15.1X53-D592
  5. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 16.1R7-S6
  6. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 16.2R2-S11
  7. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 17.1R2-S11
  8. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 17.1R3-S1
  9. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 17.2R2-S8
  10. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 17.2R3-S3
  11. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 17.3R3-S6
  12. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 17.4R2-S7
  13. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 17.4R3
  14. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 18.1R3-S8
  15. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 18.2R3-S2
  16. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 18.2X75-D60
  17. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 18.3R1-S6
  18. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 18.3R2-S2
  19. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 18.3R3
  20. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 18.4R1-S5
  21. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 18.4R2-S3
  22. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 18.4R3
  23. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 19.1R1-S3
  24. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 19.1R2
  25. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 19.2R1-S3
  26. Upgrade

    Upgrade Junos OS (JDHCPD) to a version that resolves this vulnerability.

    Fixed in 19.2R2*

Event History

Jan 15, 2020
CVE Published
via MITRE·08:40 AM
Data Sourced
via MITRE·08:40 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·09:15 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2020-1609?

CVE-2020-1609 is considered critical due to its potential to allow arbitrary command execution as root.

2

How do I fix CVE-2020-1609?

To mitigate CVE-2020-1609, update Junos OS to the latest version provided by Juniper Networks.

3

What vulnerabilities does CVE-2020-1609 impact?

CVE-2020-1609 impacts Juniper Networks' Dynamic Host Configuration Protocol Daemon on multiple versions of Junos OS.

4

What are the attack vectors for CVE-2020-1609?

CVE-2020-1609 can be exploited via crafted IPv6 packets sent by an attacker in relay mode.

5

Does CVE-2020-1609 require authentication to exploit?

CVE-2020-1609 does not require authentication, making it more vulnerable to exploitation.

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