CVE-2021-3509

MediumCVSS 6.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
n/a	ceph-dashboard	as shipped in Red Hat Ceph Storage 4

References

https://bugzilla.redhat.com/show_bug.cgi?id=1950116Issue Tracking, Patch, Vendor Advisory
https://github.com/ceph/ceph/blob/f1557e8f62d31883d3d34ae241a1a26af11d923f/src/pybind/mgr/dashboard/controllers/docs.py#L394-L409Exploit, Third Party Advisory
https://github.com/ceph/ceph/commit/7a1ca8d372da3b6a4fc3d221a0e5f72d1d61c27bPatch, Third Party Advisory
https://github.com/ceph/ceph/commit/adda853e64bdba1288d46bc7d462d23d8f2f10caPatch, Third Party Advisory
https://github.com/ceph/ceph/commit/af3fffab3b0f13057134d96e5d481e400d8bfd27Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1950116Issue Tracking, Patch, Vendor Advisory
https://github.com/ceph/ceph/blob/f1557e8f62d31883d3d34ae241a1a26af11d923f/src/pybind/mgr/dashboard/controllers/docs.py#L394-L409Exploit, Third Party Advisory
https://github.com/ceph/ceph/commit/7a1ca8d372da3b6a4fc3d221a0e5f72d1d61c27bPatch, Third Party Advisory
https://github.com/ceph/ceph/commit/adda853e64bdba1288d46bc7d462d23d8f2f10caPatch, Third Party Advisory
https://github.com/ceph/ceph/commit/af3fffab3b0f13057134d96e5d481e400d8bfd27Patch, Third Party Advisory

Timeline

Published: May 27, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

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