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CVE-2022-39339

4.3 · MEDIUM

user_oidc is an OpenID Connect user backend for Nextcloud.

Published Nov 25, 2022CWE-319EPSS 0.46%

Overview

CVE-2022-39339 is a medium-severity vulnerability. It was published on November 25, 2022 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

user_oidc is an OpenID Connect user backend for Nextcloud. In versions prior to 1.2.1 sensitive information such as the OIDC client credentials and tokens are sent in plain text of HTTP without TLS. Any malicious actor with access to monitor user traffic may have been able to compromise account security. This issue has been addressed in in user_oidc v1.2.1. Users are advised to upgrade. Users unable to upgrade may use https to access Nextcloud. Set an HTTPS discovery URL in the provider settings (in Nextcloud OIDC admin settings).

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/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhgGitHubgithub.com/nextcloud/user_oidc/pull/495Refhackerone.com/reports/1687005GitHubgithub.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhgGitHubgithub.com/nextcloud/user_oidc/pull/495Refhackerone.com/reports/1687005

How CyberStrike helps

Frequently asked questions

What is CVE-2022-39339?

CVE-2022-39339 is a medium-severity vulnerability. It was published on November 25, 2022 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2022-39339?

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-39339?

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-2022-39339?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-39339 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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