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CVE-2018-16886

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CVE-2018-16886

Published: Jan 14, 2019

Modified: Aug 5, 2024

PUBLISHED

CVSS v3.0

6.8

MEDIUM

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.

VendorProductVersions

The etcd Project

etcd:

affected
versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11

Weaknesses (CWE)

CWE-287

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

References

106540
vdb-entry
x_refsource_BID
RHSA-2019:0237
vendor-advisory
x_refsource_REDHAT
FEDORA-2019-833466697f
vendor-advisory
x_refsource_FEDORA
FEDORA-2019-219b0b0b6a
vendor-advisory
x_refsource_FEDORA
RHSA-2019:1352
vendor-advisory
x_refsource_REDHAT

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