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TI-2020-16866 Aliases CVE-2020-27781GHSA-mh9p-7vgq-83jw

Insufficiently protected credentials in Ceph

Priority LOW 31CWE-522Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 7 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-522.

Summary

User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila, resulting in potential privilege escalation. An Open Stack Manila user can request access to a share to an arbitrary cephx user, including existing users. The access key is retrieved via the interface drivers. Then, all users of the requesting OpenStack project can view the access key. This enables the attacker to target any resource that the user has access to. This can be done to even "admin" users, compromising the ceph administrator. This flaw affects Ceph versions prior to 14.2.16, 15.x prior to 15.2.8, and 16.x prior to 16.2.0.

Why it matters now

EPSS 0.00295 22nd percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 7 fixed, 3 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—CephCeph 16.2.0—No fix listedCNA
  • Ceph Vendor— Affected Ceph 16.2.0 Fixed in — No fix listed CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*before 14.2.16; 15.0.0 to before 15.2.8; 16.0.0 to before 16.2.0VulnerableRed Hat
cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:*2.0VulnerableRed Hat
cpe:2.3:a:redhat:ceph_storage:3.0:*:*:*:*:*:*:*3.0VulnerableRed Hat
cpe:2.3:a:redhat:ceph_storage:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:*13.0VulnerableRed Hat
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*33VulnerableFedoraproject
  • cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:* Versions before 14.2.16; 15.0.0 to before 15.2.8; 16.0.0 to before 16.2.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:ceph_storage:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:ceph_storage:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:* Versions 13.0 Vulnerable ·Red Hat
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject

Remediation

Red Hat 2 advisories

  • RHSA-2021:1518 Released 2021-05-06 · Red Hat rating Important
    Red Hat Ceph Storage 3.3 Security and Bug Fix Update
    • Red Hat Ceph Storage 3 MON - ELS ceph-2:12.2.12-139.el7cp, ceph-base-2:12.2.12-139.el7cp, ceph-common-2:12.2.12-139.el7cp +17
    • Red Hat Ceph Storage 3 OSD - ELS ceph-2:12.2.12-139.el7cp, ceph-base-2:12.2.12-139.el7cp, ceph-common-2:12.2.12-139.el7cp +16
    • Red Hat Ceph Storage 3 Tools - ELS ceph-2:12.2.12-139.el7cp, ceph-ansible-3.2.56-1.el7cp, ceph-base-2:12.2.12-139.el7cp +23
  • RHSA-2021:0081 Released 2021-01-12 · Red Hat rating Important
    Red Hat Ceph Storage 4.2 Security and Bug Fix update
    • Red Hat Ceph Storage 4.2 MON ceph-2:14.2.11-95.el7cp, ceph-2:14.2.11-95.el8cp, ceph-base-2:14.2.11-95.el7cp +47
    • Red Hat Ceph Storage 4.2 OSD ceph-2:14.2.11-95.el7cp, ceph-2:14.2.11-95.el8cp, ceph-base-2:14.2.11-95.el7cp +39
    • Red Hat Ceph Storage 4.2 Tools ceph-2:14.2.11-95.el7cp, ceph-2:14.2.11-95.el8cp, ceph-ansible-4.0.41-1.el7cp +47

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ceph Storage 2AffectedNo fix planned: Out of support scope
Red Hat OpenStack Platform 13 (Queens)AffectedNo fix planned: Will not fix
Red Hat Openshift Container Storage 4AffectedNo fix planned: Will not fix
Red Hat Ceph Storage 3 MON - ELSFixed RHSA-2021:1518
Red Hat Ceph Storage 3 OSD - ELSFixed RHSA-2021:1518
Red Hat Ceph Storage 3 Tools - ELSFixed RHSA-2021:1518
Red Hat Ceph Storage 4.2 MONFixed RHSA-2021:0081
Red Hat Ceph Storage 4.2 OSDFixed RHSA-2021:0081
Red Hat Ceph Storage 4.2 ToolsFixed RHSA-2021:0081
Red Hat OpenShift Container Storage 4.6 on RHEL-8Fixed—
Not affected: 4 products
  • Red Hat Ceph Storage 4.2 MON
  • Red Hat Ceph Storage 4.2 Tools
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-27781
  2. 2026-10-03 Alias added: GHSA-mh9p-7vgq-83jw

References

Advisory 3

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences