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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | ceph-dashboard | as shipped in Red Hat Ceph Storage 4 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ceph | 14.2.21-1 | — |
| Debian 13 | ceph | 14.2.21-1 | — |
| Debian 12 | ceph | 14.2.21-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | ceph | 15.2.12-0ubuntu0.20.04.1 | USN-4998-1 |
| Ubuntu 18.04 LTS | ceph | 12.2.13-0ubuntu0.18.04.10 | USN-5128-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Ceph Storage 4 | ceph +32 | 2:14.2.11-181.el7cp | RHSA-2021:2445 |
| Red Hat Ceph Storage 4 | python3-rbd +4 | 2:14.2.11-181.el8cp | RHSA-2021:2445 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | ceph | 15.2.12.83+g528da226523-3.25.1 | SUSE-SU-2021:1834-1 |
| SLES 15 SP2 | ceph | 15.2.12.83+g528da226523-3.25.1 | SUSE-SU-2021:1834-1 |
| SLES 15 SP1 | ceph | 14.2.21.403+g69ab6ea274d-3.63.1 | SUSE-SU-2021:1835-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP1 | ceph | 14.2.21.403+g69ab6ea274d-3.63.1 | SUSE-SU-2021:1835-1 |
| SLE Micro 5.0 | ceph | 15.2.12.83+g528da226523-3.25.1 | SUSE-SU-2021:1834-1 |
| SLE HPC 15 SP1 | ceph | 14.2.21.403+g69ab6ea274d-3.63.1 | SUSE-SU-2021:1835-1 |
| SUSE Manager Server 4.0 | ceph | 14.2.21.403+g69ab6ea274d-3.63.1 | SUSE-SU-2021:1835-1 |
| SUSE Manager Retail Branch Server 4.0 | ceph | 14.2.21.403+g69ab6ea274d-3.63.1 | SUSE-SU-2021:1835-1 |
| SUSE Manager Proxy 4.0 | ceph | 14.2.21.403+g69ab6ea274d-3.63.1 | SUSE-SU-2021:1835-1 |
| SUSE Enterprise Storage 7 | ceph | 15.2.12.83+g528da226523-3.25.1 | SUSE-SU-2021:1834-1 |
| SUSE Enterprise Storage 6 | ceph | 14.2.21.403+g69ab6ea274d-3.63.1 | SUSE-SU-2021:1835-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | ceph +1 | 15.2.12.83+g528da226523-3.25.1 | openSUSE-SU-2021:1834-1 |
| openSUSE Leap 15.2 | ceph +1 | 15.2.12.83+g528da226523-lp152.2.18.1 | openSUSE-SU-2021:0833-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.18 | ceph16 | 16.2.4-r0 | — |
| Alpine v3.17 | ceph16 | 16.2.4-r0 | — |
| Alpine v3.16 | ceph | 16.2.4-r0 | — |
| Alpine v3.15 | ceph | 16.2.4-r0 | — |
| Alpine v3.14 | ceph | 16.2.4-r0 | — |
Advisories 8
- RHSA-2021:2445 Red Hat Security Advisory: Red Hat Ceph Storage 4.2 Security and Bug Fix Update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-5128-1 ceph vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-4998-1 ceph vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2021:0833-1 Security update for ceph SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1834-1 Security update for ceph SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1834-1 Security update for ceph SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1835-1 Security update for ceph SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2023-2729 Red Hat Ceph Storage: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 23, 2023
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1950116
- https://github.com/ceph/ceph/blob/f1557e8f62d31883d3d34ae241a1a26af11d923f/src/pybind/mgr/dashboard/controllers/docs.py#L394-L409
- https://github.com/ceph/ceph/commit/adda853e64bdba1288d46bc7d462d23d8f2f10ca
- https://github.com/ceph/ceph/commit/7a1ca8d372da3b6a4fc3d221a0e5f72d1d61c27b
- https://github.com/ceph/ceph/commit/af3fffab3b0f13057134d96e5d481e400d8bfd27