CVE-2021-20288
ceph: Unauthorized global_id reuse in cephx
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
Se encontró un fallo de autenticación en ceph en versiones anteriores a 14.2.20. Cuando el monitor maneja las peticiones CEPHX_GET_AUTH_SESSION_KEY, no sanea other_keys, permitiendo la reutilización de claves. Un atacante que puede requerir un global_id puede explotar la capacidad de cualquier usuario para requerir un global_id previamente asociado con otro usuario, ya que ceph no obliga a la reutilización de claves antiguas para generar nuevas. La mayor amenaza de esta vulnerabilidad es la confidencialidad e integridad de los datos, así como la disponibilidad del sistema
An authentication flaw was found in ceph. 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.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-12-17 CVE Reserved
- 2021-04-15 CVE Published
- 2024-02-17 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-287: Improper Authentication
CAPEC
References (7)
URL | Tag | Source |
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https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html | Mailing List |
URL | Date | SRC |
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URL | Date | SRC |
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https://bugzilla.redhat.com/show_bug.cgi?id=1938031 | 2022-04-19 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Linuxfoundation Search vendor "Linuxfoundation" | Ceph Search vendor "Linuxfoundation" for product "Ceph" | < 14.2.21 Search vendor "Linuxfoundation" for product "Ceph" and version " < 14.2.21" | - |
Affected
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Redhat Search vendor "Redhat" | Ceph Storage Search vendor "Redhat" for product "Ceph Storage" | 4.0 Search vendor "Redhat" for product "Ceph Storage" and version "4.0" | - |
Affected
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Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 32 Search vendor "Fedoraproject" for product "Fedora" and version "32" | - |
Affected
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Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 33 Search vendor "Fedoraproject" for product "Fedora" and version "33" | - |
Affected
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Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
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Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
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