PT-2021-5763 · Ceph+5 · Ceph+5
Sage Mctaggart
·
Published
2020-09-20
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Updated
2026-03-20
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CVE-2021-20288
CVSS v3.1
7.2
High
| Vector | AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
ceph versions prior to 14.2.20
Description
The issue is related to a flaw in the authentication procedure of the ceph storage network, which can be exploited by a remote attacker to access confidential data, compromise data integrity, and cause a denial of service. The vulnerability allows key reuse when the monitor handles
CEPHX GET AUTH SESSION KEY requests, enabling an attacker to request a global id previously associated with another user. This poses a significant threat to data confidentiality, integrity, and system availability.Recommendations
For versions prior to 14.2.20, update to version 14.2.20 or later to resolve the issue. As a temporary workaround, consider restricting access to the
CEPHX GET AUTH SESSION KEY request handler to minimize the risk of exploitation. Additionally, avoid reusing global id values associated with other users until the issue is resolved.Exploit
Fix
Improper Authentication
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Suse
Ubuntu
Ceph