id: GO-2021-0077
modules:
    - module: go.etcd.io/etcd
      versions:
        - fixed: 0.5.0-alpha.5.0.20190108173120-83c051b701d3
      vulnerable_at: 0.5.0-alpha.5.0.20190108163607-9c6b407e7d45
      packages:
        - package: go.etcd.io/etcd/auth
          symbols:
            - authStore.AuthInfoFromTLS
summary: Authentication bypass in go.etcd.io/etcd
description: |-
    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.
published: 2021-04-14T20:04:52Z
cves:
    - CVE-2018-16886
ghsas:
    - GHSA-h6xx-pmxh-3wgp
references:
    - fix: https://github.com/etcd-io/etcd/pull/10366
    - fix: https://github.com/etcd-io/etcd/commit/bf9d0d8291dc71ecbfb2690612954e1a298154b2