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 attacker 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 prior to 21.4R3-S5-EVO; * 22.1 versions prior to 22.1R3-S4-EVO; * 22.2 versions 22.2R1-EVO and later; * 22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO; * 22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO; * 23.2 versions prior to 23.2R1-S1-EVO, 23.2R2-EVO.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.1, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited integrity, and limited availability for affected systems. Impacting 6 products from juniper, from juniper, from juniper and 3 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2023-10-11T22:15:10.067
2024-11-21T08:25:24.427
Modified
CVSSv3.1: 6.1 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | juniper | junos_os_evolved | < 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.3 | Yes |
| Operating System | juniper | junos_os_evolved | 22.3 | Yes |
| Operating System | juniper | junos_os_evolved | 22.3 | Yes |
| Operating System | juniper | junos_os_evolved | 22.3 | Yes |
| Operating System | juniper | junos_os_evolved | 22.3 | Yes |
| Operating System | juniper | junos_os_evolved | 22.4 | Yes |
| Operating System | juniper | junos_os_evolved | 22.4 | Yes |
| Operating System | juniper | junos_os_evolved | 22.4 | Yes |
| Operating System | juniper | junos_os_evolved | 22.4 | Yes |
| Operating System | juniper | junos_os_evolved | 23.2 | Yes |
| Hardware | juniper | ptx10001 | - | No |
| Hardware | juniper | ptx10001-36mr | - | No |
| Hardware | juniper | ptx10004 | - | No |
| Hardware | juniper | ptx10008 | - | No |
| Hardware | juniper | ptx10016 | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For juniper's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.