XSS in Red Hat Ceph Storage
CVE-2021-3509
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.017 (76.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Red Hat Ceph Storage — versions 4.0
- Ceph-Dashboard — versions as shipped in Red Hat Ceph Storage 4
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Issue Tracking, Vendor Advisory)
- github.com/ceph/ceph/blob/f1557e8f62d31883d3d34ae241a1a26af11d923f/src/pybind/m… (Exploit, Third Party Advisory)
- github.com/ceph/ceph/commit/adda853e64bdba1288d46bc7d462d23d8f2f10ca (Patch, Third Party Advisory)
- github.com/ceph/ceph/commit/7a1ca8d372da3b6a4fc3d221a0e5f72d1d61c27b (Patch, Third Party Advisory)
- github.com/ceph/ceph/commit/af3fffab3b0f13057134d96e5d481e400d8bfd27 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-3509?
- CVE-2021-3509 is a medium-severity vulnerability in Red Hat Ceph Storage, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-05-27.
- How severe is CVE-2021-3509?
- Medium severity. CVSS v3 base score is 6.1 out of 10.