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CVE-2021-3509

6.1 · MEDIUM

A flaw was found in Red Hat Ceph Storage 4, in the Dashboard component.

Published May 27, 2021CWE-79EPSS 1.70%

Overview

CVE-2021-3509 is a medium-severity vulnerability. It was published on May 27, 2021 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A flaw was found in Red Hat Ceph Storage 4, in the Dashboard component. In response to CVE-2020-27839, the JWT token was moved from localStorage to an httpOnly cookie. However, token cookies are used in the body of the HTTP response for the documentation, which again makes it available to XSS.The greatest threat to the system is for confidentiality, integrity, and availability.

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

Refbugzilla.redhat.com/show_bug.cgi?id=1950116GitHubgithub.com/ceph/ceph/blob/f1557e8f62d31883d3d34ae241a1a26af11d923f/src/pybind/mgr/dashboard/controllers/docs.py#L394-L409GitHubgithub.com/ceph/ceph/commit/7a1ca8d372da3b6a4fc3d221a0e5f72d1d61c27bGitHubgithub.com/ceph/ceph/commit/adda853e64bdba1288d46bc7d462d23d8f2f10caGitHubgithub.com/ceph/ceph/commit/af3fffab3b0f13057134d96e5d481e400d8bfd27Refbugzilla.redhat.com/show_bug.cgi?id=1950116GitHubgithub.com/ceph/ceph/blob/f1557e8f62d31883d3d34ae241a1a26af11d923f/src/pybind/mgr/dashboard/controllers/docs.py#L394-L409GitHubgithub.com/ceph/ceph/commit/7a1ca8d372da3b6a4fc3d221a0e5f72d1d61c27bGitHubgithub.com/ceph/ceph/commit/adda853e64bdba1288d46bc7d462d23d8f2f10caGitHubgithub.com/ceph/ceph/commit/af3fffab3b0f13057134d96e5d481e400d8bfd27

How CyberStrike helps

Frequently asked questions

What is CVE-2021-3509?

CVE-2021-3509 is a medium-severity vulnerability. It was published on May 27, 2021 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2021-3509?

This vulnerability has a CVSS 3.1 base score of 6.1, 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-2021-3509?

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-2021-3509?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-3509 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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