Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Juniper Networks / Junos OS | affected 12.3 before 12.3R12-S15; affected 12.3X48 before 12.3X48-D95; affected 14.1X53 before 14.1X53-D53; affected 15.1 before 15.1R7-S6; affected 15.1X49 before 15.1X49-D200; affected 15.1X53 before 15.1X53-D593; affected 16.1 before 16.1R7-S7; affected 16.2 before 16.2R2-S11; affected 17.1 before 17.1R2-S11, 17.1R3-S2; affected 17.2 before 17.2R3-S3; affected 17.2X75 before 17.2X75-D44; affected 17.3 before 17.3R3-S7; affected 17.4 before 17.4R2-S9, 17.4R3; affected 18.1 before 18.1R3-S9; affected 18.2 before 18.2R2-S6, 18.2R3-S2; affected 18.2X75 before 18.2X75-D12, 18.2X75-D33, 18.2X75-D435, 18.2X75-D60; affected 18.3 before 18.3R1-S7, 18.3R2-S3, 18.3R3-S1; affected 18.4 before 18.4R1-S5, 18.4R2-S3, 18.4R3; affected 19.1 before 19.1R1-S4, 19.1R2; affected 19.2 before 19.2R1-S3, 19.2R2; affected 19.3 before 19.3R2 |
CWE
CWE-476, CWE-20
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
ADP enrichment
No English description supplied.
- 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