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CVE-2022-31014

5.4 · MEDIUM

Nextcloud server is an open source personal cloud server.

Published Jul 5, 2022CWE-74EPSS 2.51%

Overview

CVE-2022-31014 is a medium-severity vulnerability. It was published on July 5, 2022 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 can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Nextcloud server is an open source personal cloud server. Affected versions were found to be vulnerable to SMTP command injection. The impact varies based on which commands are supported by the backend SMTP server. However, the main risk here is that the attacker can then hijack an already-authenticated SMTP session and run arbitrary SMTP commands as the email user, such as sending emails to other users, changing the FROM user, and so on. As before, this depends on the configuration of the server itself, but newlines should be sanitized to mitigate such arbitrary SMTP command injection. It is recommended that the Nextcloud Server is upgraded to 22.2.8 , 23.0.5 or 24.0.1. There are no known workarounds for this issue.

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-264h-3v4w-6xh2GitHubgithub.com/nextcloud/server/pull/32428Refhackerone.com/reports/1516377GitHubgithub.com/nextcloud/security-advisories/security/advisories/GHSA-264h-3v4w-6xh2GitHubgithub.com/nextcloud/server/pull/32428Refhackerone.com/reports/1516377

How CyberStrike helps

Frequently asked questions

What is CVE-2022-31014?

CVE-2022-31014 is a medium-severity vulnerability. It was published on July 5, 2022 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2022-31014?

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-31014?

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-2022-31014?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-31014 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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