Junos OS: When a DHCPv6 Relay-Agent is configured upon receipt of a specific DHCPv6 client message, Remote Code Execution may occur. (Juniper Networks Junos OS)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.11 % · percentile 66 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
The DHCPv6 Relay-Agent service, part of the Juniper Enhanced jdhcpd daemon shipped with Juniper Networks Junos OS has an Improper Input Validation vulnerability which will result in a Denial of Service (DoS) condition when a DHCPv6 client sends a specific DHPCv6 message allowing an attacker to potentially perform a Remote Code Execution (RCE) attack on the target device. Continuous receipt of the specific DHCPv6 client message will result in an extended Denial of Service (DoS) condition. If adjacent devices are also configured to relay DHCP packets, and are not affected by this issue and simply transparently forward unprocessed client DHCPv6 messages, then the attack vector can be a Network-based attack, instead of an Adjacent-device attack. No other DHCP services are affected. Receipt of the packet without configuration of the DHCPv6 Relay-Agent service, will not result in exploitability of this issue. This issue affects Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S15; 12.3X48 versions prior to 12.3X48-D95; 14.1X53 versions prior to 14.1X53-D53; 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D200; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S7; 16.2 versions prior to 16.2R2-S11; 17.1 versions prior to 17.1R2-S11, 17.1R3-S2; 17.2 versions prior to 17.2R3-S3; 17.2X75 versions prior to 17.2X75-D44; 17.3 versions prior to 17.3R3-S7; 17.4 versions prior to 17.4R2-S9, 17.4R3; 18.1 versions prior to 18.1R3-S9; 18.2 versions prior to 18.2R2-S6, 18.2R3-S2; 18.2X75 versions prior to 18.2X75-D12, 18.2X75-D33, 18.2X75-D435, 18.2X75-D60; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3-S1; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3; 19.1 versions prior to 19.1R1-S4, 19.1R2; 19.2 versions prior to 19.2R1-S3, 19.2R2; 19.3 versions prior to 19.3R2.
Weaknesses (CWE)
References
- https://kb.juniper.net/JSA11049
- https://www.juniper.net/documentation/en_US/junos/topics/topic-map/dhcpv6-relay-agent-overview.html
- https://www.juniper.net/documentation/en_US/junos/topics/topic-map/dhcp-relay-agent-security-devices.html
- https://www.juniper.net/documentation/en_US/junos/topics/reference/command-summary/show-dhcpv6-relay-statistics.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | juniper |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · sirt@juniper.net (Secondary) |
| CVSS 2.0 | MEDIUM 5.8 | AV:A/AC:L/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-12521
- GCVE · GCVE-0-2020-1656
CERT-FR advisories
- CERTFR-2020-AVI-645 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos:12.3:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r10:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r10-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r10-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r11:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s11:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s12:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s13:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3:r12-s14:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d100:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d20:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d25:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d30:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d35:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d40:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d45:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d50:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d51:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d55:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d60:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d65:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d70:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d75:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d80:*:*:*:*:*:*cpe:2.3:o:juniper:junos:12.3x48:d90:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d10:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d121:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d15:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d16:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d25:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d26:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d27:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d30:*:*:*:*:*:*- +286 more
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS | affected 12.3 < 12.3R12-S15 ; affected 12.3X48 < 12.3X48-D95 ; affected 14.1X53 < 14.1X53-D53 ; affected 15.1 < 15.1R7-S6 ; affected 15.1X49 < 15.1X49-D200 ; affected 15.1X53 < 15.1X53-D593 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |