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CVE-2022-4874

7.5 · HIGH

Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content.

Published Jan 11, 2023CWE-287EPSS 11.01%

Overview

CVE-2022-4874 is a high-severity vulnerability. It was published on January 11, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a "fake login" to give the request an active session to load the file and not redirect to the login page.

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

GitHubgithub.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.mdGitHubgithub.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.mdRefwww.kb.cert.org/vuls/id/986018

How CyberStrike helps

Frequently asked questions

What is CVE-2022-4874?

CVE-2022-4874 is a high-severity vulnerability. It was published on January 11, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2022-4874?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-4874?

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-2022-4874?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-4874 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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