Upstream information

CVE-2018-16886 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v3 Scores
  SUSE
Base Score 6.8
Vector AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Access Vector Network
Access Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact None
SUSE Bugzilla entry: 1121850 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE CaaS Platform 3.0
  • etcd >= 3.3.11-3.6.1
  • etcdctl >= 3.3.11-3.6.1
Patchnames:
SUSE-CAASP-3.0-2019-330


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
CaaS Platform 1.0 etcd Not affected
CaaS Platform 2.0 etcd Not affected
CaaS Platform 3.0 etcd Released
OpenStack Cloud Magnum Orchestration 7.0 etcd Not affected