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CVE-2016-9461

4.3 · MEDIUM

Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying edit check permissions on WebDAV copy actions.

Published Mar 28, 2017CWE-275EPSS 2.00%

Overview

CVE-2016-9461 is a medium-severity vulnerability. It was published on March 28, 2017 and has a CVSS 3.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying edit check permissions on WebDAV copy actions. The WebDAV endpoint was not properly checking the permission on a WebDAV COPY action. This allowed an authenticated attacker with access to a read-only share to put new files in there. It was not possible to modify existing files.

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

Refwww.securityfocus.com/bid/97276GitHubgithub.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120ccGitHubgithub.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547GitHubgithub.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36eGitHubgithub.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47GitHubgithub.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9Refhackerone.com/reports/145950Refnextcloud.com/security/advisory/?id=nc-sa-2016-004Refowncloud.org/security/advisory/?id=oc-sa-2016-014Refwww.securityfocus.com/bid/97276

How CyberStrike helps

Frequently asked questions

What is CVE-2016-9461?

CVE-2016-9461 is a medium-severity vulnerability. It was published on March 28, 2017 and has a CVSS 3.0 base score of 4.3 (MEDIUM).

How severe is CVE-2016-9461?

This vulnerability has a CVSS 3.0 base score of 4.3, 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-2016-9461?

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-2016-9461?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-9461 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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