Vulnerabilities
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CVE Vulnerabilities

CVE-2021-20288

Improper Authentication

Published: Apr 15, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.2
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.5 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P
RedHat/V2
RedHat/V3
8 IMPORTANT
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-20288
CWEhttps://cwe.mitre.org/data/definitions/287.html

An authentication flaw was found in ceph in versions before 14.2.20. When the monitor handles CEPHX_GET_AUTH_SESSION_KEY requests, it doesnt sanitize other_keys, allowing key reuse. An attacker who can request a global_id can exploit the ability of any user to request a global_id previously associated with another user, as ceph does not force the reuse of old keys to generate new ones. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

NameVendorStart VersionEnd Version
CephLinuxfoundation*14.2.21 (excluding)
Red Hat Ceph Storage 3 - ELSRedHatceph-2:12.2.12-141.el7cp*
Red Hat Ceph Storage 4.2RedHatceph-2:14.2.11-181.el7cp*
CephUbuntubionic*
CephUbuntudevel*
CephUbuntuesm-infra-legacy/trusty*
CephUbuntuesm-infra/bionic*
CephUbuntuesm-infra/focal*
CephUbuntuesm-infra/xenial*
CephUbuntufocal*
CephUbuntugroovy*
CephUbuntuhirsute*
CephUbuntuimpish*
CephUbuntujammy*
CephUbuntuprecise/esm*
CephUbuntutrusty*
CephUbuntutrusty/esm*
CephUbuntuupstream*
CephUbuntuxenial*

Potential Mitigations

References

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