CVE-2023-44190
6.1 · MEDIUMOverview
CVE-2023-44190 is a medium-severity vulnerability affecting juniper junos_os_evolved. It was published on October 11, 2023 and has a CVSS 3.1 base score of 6.1 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from juniper. Update junos_os_evolved to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| juniper | junos_os_evolved | >= 0, < 21.4 | Affected |
Frequently Asked Questions
What is CVE-2023-44190?
CVE-2023-44190 is a medium-severity vulnerability affecting juniper junos_os_evolved. It was published on October 11, 2023 and has a CVSS 3.1 base score of 6.1 (MEDIUM).
How severe is CVE-2023-44190?
This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2023-44190?
Check the references section for vendor advisories and patches from juniper. Update junos_os_evolved to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-44190?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-44190 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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