An Origin Validation vulnerability in MAC address validation of Juniper Networks Junos OS Evolved on PTX10001, PTX10004, PTX10008, and PTX10016 devices allows a network-adjacent malicious user to bypass MAC address checking, allowing MAC addresses not intended to reach the adjacent LAN to be forwarded to the downstream network. Due to this issue, the router will start forwarding traffic if a valid route is present in forwarding-table, causing a loop and congestion in the downstream layer-2 domain connected to the device. This issue affects Juniper Networks Junos OS Evolved on PTX10001, PTX10004, PTX10008, and PTX10016: * All versions before 21.4R3-S5-EVO; * 22.1 versions before 22.1R3-S4-EVO; * 22.2 versions 22.2R1-EVO and later; * 22.3 versions before 22.3R2-S2-EVO, 22.3R3-S1-EVO; * 22.4 versions before 22.4R2-S1-EVO, 22.4R3-EVO; * 23.2 versions before 23.2R1-S1-EVO, 23.2R2-EVO.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
juniper junos_os_evolved |
||
juniper junos_os_evolved 21.4 |
||
juniper junos_os_evolved 22.1 |
||
juniper junos_os_evolved 22.2 |
||
juniper junos_os_evolved 22.3 |
||
juniper junos_os_evolved 22.4 |
||
juniper junos_os_evolved 23.2 |
Vulmon