CVE-2018-16886

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.

Link	Resource
https://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.3.md#security-authentication	Release Notes
https://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.2.md#security-authentication	Release Notes
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16886	Issue Tracking Patch
http://www.securityfocus.com/bid/106540	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:0237	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1352	Third Party Advisory

Configuration 1

cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:* cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*

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Published : 2019-01-14 07:29

Updated : 2019-10-24 12:24

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NVD link : CVE-2018-16886

Mitre link : CVE-2018-16886

No products.

CWE-287