CVE-2018-16886
- State
- Published
- Severity
- 6.8 Medium
- Published
- Jan 14, 2019
- Updated
- Aug 5, 2024
- Reserved
- Sep 11, 2018
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 6.8 Medium | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N | redhat |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
etcd:The etcd Project |
|
References
- https://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.3.md#security-authentication
- 106540vdb-entry
- https://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.2.md#security-authentication
- RHSA-2019:0237vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16886
- FEDORA-2019-833466697fvendor-advisory
- FEDORA-2019-219b0b0b6avendor-advisory
- RHSA-2019:1352vendor-advisory
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