CVEvulnerability

CVE-2021-20288

7.2 HIGH Published 2021-04-15 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-04-15
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
Weaknesses
CWE-287

Description

An authentication flaw was found in ceph in versions before 14.2.20. When the monitor handles CEPHX_GET_AUTH_SESSION_KEY requests, it doesn't 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.

Affected configurations

• linuxfoundation ceph (< 14.2.21) • redhat ceph storage 4.0 • fedoraproject fedora 32 • fedoraproject fedora 33 • fedoraproject fedora 34 • debian debian linux 10.0

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References