Authentication bypass in go.etcd.io/etcd
A user can use a valid client certificate that contains a CommonName that matches a valid RBAC username to authenticate themselves as that user, despite lacking the required credentials. This may allow authentication bypass, but requires a certificate that is issued by a CA trusted by the server.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2018-16886US | high8.1 | — | ||
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 e… | ||||
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references
External citations — patches, advisories, analysis.
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