CVE-2018-16886

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Summary

CVECVE-2018-16886
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-01-14 19:29:00 UTC
Updated2023-11-07 02:53:00 UTC
Descriptionetcd 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.

Risk And Classification

Problem Types: CWE-287

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Etcd Etcd All All All All
Application Etcd Etcd All All All All
Operating System Fedoraproject Fedora 30 All All All
Operating System Fedoraproject Fedora 30 All All All
Operating System Redhat Enterprise Linux Desktop 7.0 All All All
Operating System Redhat Enterprise Linux Desktop 7.0 All All All
Operating System Redhat Enterprise Linux Server 7.0 All All All
Operating System Redhat Enterprise Linux Server 7.0 All All All
Operating System Redhat Enterprise Linux Workstation 7.0 All All All
Operating System Redhat Enterprise Linux Workstation 7.0 All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 30 Update: etcd-3.3.12-1.20190314gite1ca3b4.fc30 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Third Party Advisory
etcd CVE-2018-16886 Authentication Bypass Vulnerability BID www.securityfocus.com Third Party Advisory, VDB Entry
etcd/CHANGELOG-3.2.md at 1eee465a43720d713bb69f7b7f5e120135fdb1ac · etcd-io/etcd · GitHub MISC github.com Release Notes
Red Hat Customer Portal - Access to 24x7 support and knowledge REDHAT access.redhat.com Third Party Advisory
[SECURITY] Fedora 29 Update: etcd-3.3.12-4.20190413gitf29b1ad.fc29 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
[SECURITY] Fedora 29 Update: etcd-3.3.12-4.20190413gitf29b1ad.fc29 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
etcd/CHANGELOG-3.3.md at 1eee465a43720d713bb69f7b7f5e120135fdb1ac · etcd-io/etcd · GitHub MISC github.com Release Notes
1651034 – (CVE-2018-16886) CVE-2018-16886 etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway CONFIRM bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
[SECURITY] Fedora 30 Update: etcd-3.3.12-1.20190314gite1ca3b4.fc30 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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