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CVE-2020-25660 Details

Description

A flaw was found in the Cephx authentication protocol in versions before 15.2.6 and before 14.2.14, where it does not verify Ceph clients correctly and is then vulnerable to replay attacks in Nautilus. This flaw allows an attacker with access to the Ceph cluster network to authenticate with the Ceph service via a packet sniffer and perform actions allowed by the Ceph service. This issue is a reintroduction of CVE-2018-1128, affecting the msgr2 protocol. The msgr 2 protocol is used for all communication except older clients that do not support the msgr2 protocol. The msgr1 protocol is not affected. The highest threat from this vulnerability is to confidentiality, integrity, and system availability.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=1890354 CVEIssue TrackingThird Party Advisory
https://ceph.io/community/v15-2-6-octopus-released/ CVERelease NotesVendor Advisory
https://ceph.io/releases/v14-2-14-nautilus-released/ CVERelease NotesVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBC4KZ44QUQENTYZPVHORGL4K2KV5V4F/ CVE
https://security.gentoo.org/glsa/202105-39 CVEThird Party Advisory

see all 10 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-294Authentication Bypass by Capture-replay[email protected]
CWE-294Authentication Bypass by Capture-replay[email protected]

Affected Products

ProductVersions
redhat ceph
< 14.2.14
>= 15.0.0, < 15.2.6

CPE

  • cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat ceph storage
2.0
4.0

CPE

  • cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:ceph_storage:4.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat openshift container platform
4.0

CPE

  • cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
33

CPE

  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2020-25660
NVD Published Date:
Nov 23, 2020
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2020-25660 Details - Not Deferred