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CVE-2024-39534

5.4 · MEDIUM

An Incorrect Comparison vulnerability in the local address verification API of Juniper Networks Junos OS Evolved allows an unauthenticated network-adjacent attacker to create sessions or send traff…

Published Oct 11, 2024CWE-697EPSS 0.66%

Overview

CVE-2024-39534 is a medium-severity vulnerability. It was published on October 11, 2024 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

An Incorrect Comparison vulnerability in the local address verification API of Juniper Networks Junos OS Evolved allows an unauthenticated network-adjacent attacker to create sessions or send traffic to the device using the network and broadcast address of the subnet assigned to an interface. This is unintended and unexpected behavior and can allow an attacker to bypass certain compensating controls, such as stateless firewall filters.

This issue affects Junos OS Evolved: 

* All versions before 21.4R3-S8-EVO, 

* 22.2-EVO before 22.2R3-S4-EVO, 

* 22.3-EVO before 22.3R3-S4-EVO, 

* 22.4-EVO before 22.4R3-S3-EVO, 

* 23.2-EVO before 23.2R2-S1-EVO, 

* 23.4-EVO before 23.4R1-S2-EVO, 23.4R2-EVO.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refsupportportal.juniper.net/JSA88105

How CyberStrike helps

Frequently asked questions

What is CVE-2024-39534?

CVE-2024-39534 is a medium-severity vulnerability. It was published on October 11, 2024 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2024-39534?

This vulnerability has a CVSS 3.1 base score of 5.4, 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-2024-39534?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2024-39534?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-39534 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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