CVE-2018-16886
etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
etcd versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11 are vulnerable to an improper authentication issue when role-based access control (RBAC) is used and client-cert-auth is enabled. If an etcd client server TLS certificate contains a Common Name (CN) which matches a valid RBAC username, a remote attacker may authenticate as that user with any valid (trusted) client certificate in a REST API request to the gRPC-gateway.
etcd, en sus versiones 3.2.x anteriores a la 3.2.26 y versiones 3.3.x anteriores a la 3.3.11, es vulnerable a una autorización incorrecta cuando se emplea un control de acceso basado en roles (RBAC) y client-cert-auth se encuentra habilitado. Si un certificado TLS del servidor etcd del cliente contiene un "Common Name" (CN) que coincide con un nombre de usuario RBAC válido, un atacante remoto podría autenticarse como dicho usuario con cualquier certificado (confiable) del cliente en una petición REST API en gRPC-gateway.
Etcd, versions 3.2.0 through 3.2.25 and 3.3.0 through 3.3.10, are vulnerable to an improper authentication issue when role-based access control (RBAC) is used and client-cert-auth is enabled. If an etcd client server's TLS certificate contains a Common Name (CN) which matches a valid RBAC username, a remote attacker may authenticate as that user with any valid (trusted) client certificate in a REST API request to the gRPC-gateway.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2018-09-11 CVE Reserved
- 2019-01-14 CVE Published
- 2024-07-16 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-287: Improper Authentication
CAPEC
References (10)
URL | Date | SRC |
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URL | Date | SRC |
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https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16886 | 2023-11-07 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Etcd Search vendor "Etcd" | Etcd Search vendor "Etcd" for product "Etcd" | >= 3.2.0 < 3.2.26 Search vendor "Etcd" for product "Etcd" and version " >= 3.2.0 < 3.2.26" | - |
Affected
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Etcd Search vendor "Etcd" | Etcd Search vendor "Etcd" for product "Etcd" | >= 3.3.0 < 3.3.11 Search vendor "Etcd" for product "Etcd" and version " >= 3.3.0 < 3.3.11" | - |
Affected
| ||||||
Redhat Search vendor "Redhat" | Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0" | - |
Affected
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Redhat Search vendor "Redhat" | Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0" | - |
Affected
| ||||||
Redhat Search vendor "Redhat" | Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0" | - |
Affected
| ||||||
Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 30 Search vendor "Fedoraproject" for product "Fedora" and version "30" | - |
Affected
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