CVE-2018-16886

2019-01-1419:00:00

CWE-287

redhat

www.cve.org

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

8 High

AI Score

Confidence

High

0.018 Low

EPSS

Percentile

88.0%

JSON

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.

CNA Affected

[
  {
    "product": "etcd:",
    "vendor": "The etcd Project",
    "versions": [
      {
        "status": "affected",
        "version": "versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11"
      }
    ]
  }
]