Vulnerability Details CVE-2021-20288
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 40.0%
CVSS Severity
CVSS v3 Score 7.2
CVSS v2 Score 6.5
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1938031
- https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/362CEPPYF3YMJZBEJQUT3KDE2EHYYIYQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5BPIAYTRCWAU4XWCDBK2THEFVXSC4XGK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JVWUKUUS5BCIFWRV3JCUQMAPJ4HIWSED/
- https://security.gentoo.org/glsa/202105-39
- https://bugzilla.redhat.com/show_bug.cgi?id=1938031
- https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/362CEPPYF3YMJZBEJQUT3KDE2EHYYIYQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5BPIAYTRCWAU4XWCDBK2THEFVXSC4XGK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JVWUKUUS5BCIFWRV3JCUQMAPJ4HIWSED/
- https://security.gentoo.org/glsa/202105-39
Products affected by CVE-2021-20288
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cpe:2.3:a:linuxfoundation:ceph:-
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cpe:2.3:a:linuxfoundation:ceph:12.2.0
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cpe:2.3:a:linuxfoundation:ceph:12.2.1
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cpe:2.3:a:linuxfoundation:ceph:12.2.10
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cpe:2.3:a:linuxfoundation:ceph:12.2.11
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cpe:2.3:a:linuxfoundation:ceph:12.2.12
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cpe:2.3:a:linuxfoundation:ceph:12.2.13
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cpe:2.3:a:linuxfoundation:ceph:12.2.2
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cpe:2.3:a:linuxfoundation:ceph:12.2.3
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cpe:2.3:a:linuxfoundation:ceph:12.2.4
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cpe:2.3:a:linuxfoundation:ceph:12.2.5
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cpe:2.3:a:linuxfoundation:ceph:12.2.6
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cpe:2.3:a:linuxfoundation:ceph:12.2.7
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cpe:2.3:a:linuxfoundation:ceph:12.2.8
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cpe:2.3:a:linuxfoundation:ceph:12.2.9
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cpe:2.3:a:linuxfoundation:ceph:13.2.0
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cpe:2.3:a:linuxfoundation:ceph:13.2.1
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cpe:2.3:a:linuxfoundation:ceph:13.2.10
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cpe:2.3:a:linuxfoundation:ceph:13.2.2
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cpe:2.3:a:linuxfoundation:ceph:13.2.3
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cpe:2.3:a:linuxfoundation:ceph:13.2.4
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cpe:2.3:a:linuxfoundation:ceph:13.2.5
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cpe:2.3:a:linuxfoundation:ceph:13.2.6
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cpe:2.3:a:linuxfoundation:ceph:13.2.7
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cpe:2.3:a:linuxfoundation:ceph:13.2.8
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cpe:2.3:a:linuxfoundation:ceph:13.2.9
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cpe:2.3:a:linuxfoundation:ceph:14.2.0
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cpe:2.3:a:linuxfoundation:ceph:14.2.1
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cpe:2.3:a:linuxfoundation:ceph:14.2.10
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cpe:2.3:a:linuxfoundation:ceph:14.2.11
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cpe:2.3:a:linuxfoundation:ceph:14.2.12
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cpe:2.3:a:linuxfoundation:ceph:14.2.13
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cpe:2.3:a:linuxfoundation:ceph:14.2.14
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cpe:2.3:a:linuxfoundation:ceph:14.2.15
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cpe:2.3:a:linuxfoundation:ceph:14.2.16
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cpe:2.3:a:linuxfoundation:ceph:14.2.17
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cpe:2.3:a:linuxfoundation:ceph:14.2.18
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cpe:2.3:a:linuxfoundation:ceph:14.2.19
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cpe:2.3:a:linuxfoundation:ceph:14.2.2
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cpe:2.3:a:linuxfoundation:ceph:14.2.20
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cpe:2.3:a:linuxfoundation:ceph:14.2.3
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cpe:2.3:a:linuxfoundation:ceph:14.2.4
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cpe:2.3:a:linuxfoundation:ceph:14.2.5
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cpe:2.3:a:linuxfoundation:ceph:14.2.6
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cpe:2.3:a:linuxfoundation:ceph:14.2.7
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cpe:2.3:a:linuxfoundation:ceph:14.2.8
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cpe:2.3:a:linuxfoundation:ceph:14.2.9
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cpe:2.3:a:redhat:ceph_storage:4.0
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cpe:2.3:o:debian:debian_linux:10.0
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cpe:2.3:o:fedoraproject:fedora:32
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cpe:2.3:o:fedoraproject:fedora:33
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cpe:2.3:o:fedoraproject:fedora:34