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Fencer Intel
medium 5.4

CVE-2020-10753 json

A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway).

published 6y ago modified 2mo ago also BIT-ceph-2020-10753 , EUVD-2020-3171

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway). The vulnerability is related to the injection of HTTP headers via a CORS ExposeHeader tag. The newline character in the ExposeHeader tag in the CORS configuration file generates a header injection in the response when the CORS request is made. Ceph versions 3.x and 4.x are vulnerable to this issue.

Patch / fix

  • bitnami ceph 14.2.21
  • linuxfoundation ceph 14.2.21
  • ceph Debian 14, Debian 13, Debian 12 14.2.15-1

debian advisories DEBIAN-CVE-2020-10753

  • ceph Ubuntu 16.04 LTS 10.2.11-0ubuntu0.16.04.3
  • ceph Ubuntu 18.04 LTS 12.2.13-0ubuntu0.18.04.4
  • ceph Ubuntu 20.04 LTS 15.2.7-0ubuntu0.20.04.2

ubuntu advisories UBUNTU-CVE-2020-10753

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ceph ceph storage 4 2:14.2.8-81.el7cp
  • ceph ceph storage 4 2:14.2.8-81.el8cp
  • librbd1 ceph storage 4 2:14.2.8-81.el7cp
  • librbd1 ceph storage 4 2:14.2.8-81.el8cp
  • librgw2 ceph storage 4 2:14.2.8-81.el7cp
  • librgw2 ceph storage 4 2:14.2.8-81.el8cp
  • rbd-nbd ceph storage 4 2:14.2.8-81.el7cp
  • rbd-nbd ceph storage 4 2:14.2.8-81.el8cp

red hat advisories RHSA-2020:3003RHSA-2020:3504

  • deepsea Enterprise Storage 6 0.9.33+git.0.ed16d26e-3.27.1
  • ceph SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +10 more 12.2.13+git.1592168685.85110a3e9d-2.50.1
  • ceph SLE Module for Basesystem 15 SP1, Enterprise Storage 6 14.2.9.970+ged84cae0c9-3.41.1

suse advisories SUSE-SU-2020:3257-1SUSE-SU-2020:1748-1SUSE-SU-2020:1747-1

  • ceph openSUSE Leap 15.1 14.2.9.970+ged84cae0c9-lp151.2.19.1
  • ceph-test openSUSE Leap 15.1 14.2.9.970+ged84cae0c9-lp151.2.19.1

opensuse advisories openSUSE-SU-2020:0898-1

  • ceph Alpine 3.16, Alpine 3.15, Alpine 3.14 +1 more 15.2.6-r0
  • ceph16 Alpine 3.18, Alpine 3.17 15.2.6-r0

alpine advisories ALPINE-CVE-2020-10753

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2020-10753 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-10753 updated cvss 5.4

ceph: radosgw: HTTP header injection via CORS ExposeHeader tag

  • Red Hat Ceph Storage 2 ceph, librbd1, librgw2, ceph-mds, ceph-mon, ceph-osd, +12 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Openshift Container Storage 4 ceph
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenStack Platform 15 (Stein) librbd1, librgw2, librados2, libcephfs2, ceph-common, python3-rbd, +5 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Ceph Storage 3 for Ubuntu
    fixed: vendor fix RHSA-2020:3505
  • Red Hat Ceph Storage 3.3 MON ceph 12.2.12-124.el7cp, librbd1 12.2.12-124.el7cp, librgw2 12.2.12-124.el7cp, ceph-mgr 12.2.12-124.el7cp, ceph-mon 12.2.12-124.el7cp, ceph-base 12.2.12-124.el7cp, +10 more Red Hat Ceph Storage 3.3 OSD ceph 12.2.12-124.el7cp, librbd1 12.2.12-124.el7cp, librgw2 12.2.12-124.el7cp, ceph-osd 12.2.12-124.el7cp, ceph-base 12.2.12-124.el7cp, ceph-test 12.2.12-124.el7cp, +9 more Red Hat Ceph Storage 3.3 Tools ceph 12.2.12-124.el7cp, librbd1 12.2.12-124.el7cp, librgw2 12.2.12-124.el7cp, ceph-mds 12.2.12-124.el7cp, nfs-ganesha 2.7.4-13.el7cp, ceph-ansible 3.2.48-1.el7cp, +16 more
    fixed: vendor fix RHSA-2020:3504
  • Red Hat Ceph Storage 4.1 Tools nfs-ganesha 2.8.3-8.el7cp, nfs-ganesha 2.8.3-8.el8cp, nfs-ganesha-rgw 2.8.3-8.el7cp, nfs-ganesha-rgw 2.8.3-8.el8cp, nfs-ganesha-vfs 2.8.3-8.el7cp, nfs-ganesha-vfs 2.8.3-8.el8cp, +10 more
    fixed: vendor fix RHSA-2020:3003
  • Red Hat Ceph Storage 4.1 MON ceph 14.2.8-81.el7cp, ceph 14.2.8-81.el8cp, librbd1 14.2.8-81.el7cp, librbd1 14.2.8-81.el8cp, librgw2 14.2.8-81.el7cp, librgw2 14.2.8-81.el8cp, +38 more Red Hat Ceph Storage 4.1 OSD ceph 14.2.8-81.el7cp, ceph 14.2.8-81.el8cp, librbd1 14.2.8-81.el7cp, librbd1 14.2.8-81.el8cp, librgw2 14.2.8-81.el7cp, librgw2 14.2.8-81.el8cp, +26 more Red Hat Ceph Storage 4.1 Tools ceph 14.2.8-81.el7cp, ceph 14.2.8-81.el8cp, librbd1 14.2.8-81.el7cp, librbd1 14.2.8-81.el8cp, librgw2 14.2.8-81.el7cp, librgw2 14.2.8-81.el8cp, +40 more Red Hat Enterprise Linux 8 librbd1, librados2, libcephfs2, libradosstriper1 Red Hat OpenStack Platform 13 (Queens) librbd1, librgw2, ceph-fuse, librados2, libcephfs2, python-rbd, +6 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.45% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
OSV 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
bitnami ceph
<14.2.21
14.2.21

Affected products

  • Red Hat Red Hat Ceph Storage

Classification

Weakness
  • CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.