CVE-2018-16886
published 2019-01-14CVE-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…
PriorityP352high8.1CVSS 3.1
AVNACHPRNUINSUCHIHAH
EPSS
4.03%
89.5th percentile
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.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | etcd | < etcd 3.2.26+dfsg-1 (bookworm) | etcd 3.2.26+dfsg-1 (bookworm) |
| etcd | etcd | >= 0 < 3.2.26+dfsg-1 | 3.2.26+dfsg-1 |
| etcd | etcd | >= 0 < 3.2.26+dfsg-1 | 3.2.26+dfsg-1 |
| etcd | etcd | >= 0 < 3.2.26+dfsg-1 | 3.2.26+dfsg-1 |
| etcd | etcd | >= 0 < 3.2.26+dfsg-1 | 3.2.26+dfsg-1 |
| etcd | etcd | >= 3.2.0 < 3.2.26 | 3.2.26 |
| etcd | etcd | >= 3.3.0 < 3.3.11 | 3.3.11 |
| fedoraproject | fedora | — | — |
| go.etcd.io | etcd | >= 0 < 0.5.0-alpha.5.0.20190108173120-83c051b701d3 | 0.5.0-alpha.5.0.20190108173120-83c051b701d3 |
| go.etcd.io | etcd_v3 | >= 3.2.0 < 3.2.26 | 3.2.26 |
| go.etcd.io | etcd_v3 | >= 3.3.0 < 3.3.11 | 3.3.11 |
| redhat | enterprise_linux_desktop | — | — |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_workstation | — | — |
| the_etcd_project | etcd | — | — |
CVSS provenance
nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv3.06.8MEDIUMCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.1HIGH
vendor_debian8.1HIGH
vendor_redhat8.1HIGH
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GHSA
go.etcd.io/etcd Authentication Bypass
ghsa·2022-04-12
CVE-2018-16886 [HIGH] CWE-285 go.etcd.io/etcd Authentication Bypass
go.etcd.io/etcd Authentication Bypass
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.
OSV
go.etcd.io/etcd Authentication Bypass
osv·2022-04-12
CVE-2018-16886 [HIGH] go.etcd.io/etcd Authentication Bypass
go.etcd.io/etcd Authentication Bypass
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.
OSV
Authentication bypass in go.etcd.io/etcd
osv·2021-04-14
CVE-2018-16886 Authentication bypass in go.etcd.io/etcd
Authentication bypass in go.etcd.io/etcd
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.
OSV
CVE-2018-16886: etcd versions 3
osv·2019-01-14·CVSS 8.1
CVE-2018-16886 [HIGH] CVE-2018-16886: etcd versions 3
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.
Red Hat
etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway
vendor_redhat·2019-01-11·CVSS 8.1
CVE-2018-16886 [HIGH] CWE-287 etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway
etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway
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.
Etcd, versions 3.2.0 through 3.2.25 and 3.3.0 through 3.3.10, 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's TLS certificate contains a Common Name (CN) which matches a valid RB
Debian
CVE-2018-16886: etcd - etcd versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11 are vulnerable to an i...
vendor_debian·2018·CVSS 8.1
CVE-2018-16886 [HIGH] CVE-2018-16886: etcd - etcd versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11 are vulnerable to an i...
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.
Scope: local
bookworm: resolved (fixed in 3.2.26+dfsg-1)
bullseye: resolved (fixed in 3.2.26+dfsg-1)
forky: resolved (fixed in 3.2.26+dfsg-1)
sid: resolved (fixed in 3.2.26+dfsg-1)
trixie: resolved (fixed in 3.2.26+dfsg-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-16886 etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway [fedora-all]
bugzilla·2019-01-14·CVSS 8.1
CVE-2018-16886 [HIGH] CVE-2018-16886 etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway [fedora-all]
CVE-2018-16886 etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue aff
Bugzilla
CVE-2018-16886 etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway
bugzilla·2018-11-19·CVSS 8.1
CVE-2018-16886 [HIGH] CVE-2018-16886 etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway
CVE-2018-16886 etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway
Etcd, versions 3.2.0 through 3.2.25 and 3.3.0 through 3.3.10, 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's 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.
Introduced in commit:
https://github.com/etcd-io/etcd/commit/0191509637546621d6f2e18e074e955ab8ef374d
Upstream issue:
https://github.com/etcd-io/etcd/pull/10366
Upstream patch:
https://github.com/etcd-io/etcd/commit/bf9d0d8291dc71ecbfb2690612954e1a298154b2
https:/
http://www.securityfocus.com/bid/106540https://access.redhat.com/errata/RHSA-2019:0237https://access.redhat.com/errata/RHSA-2019:1352https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16886https://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.2.md#security-authenticationhttps://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.3.md#security-authenticationhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/http://www.securityfocus.com/bid/106540https://access.redhat.com/errata/RHSA-2019:0237https://access.redhat.com/errata/RHSA-2019:1352https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16886https://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.2.md#security-authenticationhttps://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.3.md#security-authenticationhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/
2019-01-14
Published