CVE-2018-16886

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Source
https://cve.org/CVERecord?id=CVE-2018-16886
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16886.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-16886
Aliases
Downstream
Related
Published
2019-01-14T19:29:00.243Z
Modified
2026-03-10T14:34:53.529170Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/etcd-io/etcd

Affected ranges

Type
GIT
Repo
https://github.com/etcd-io/etcd
Events
Introduced
e475a4ea710491899fd4427552eda6ee45775320
Fixed
06cec40911744c0aca5d1afd69b2631b0a4879ba
Introduced
c23606781f63d09917a1e7abfcefeb337a9608ea
Fixed
2cf9e51d2a78003b164c2998886158e60ded1cbb
Database specific 
{
    "versions": [
        {
            "introduced": "3.2.0"
        },
        {
            "fixed": "3.2.26"
        },
        {
            "introduced": "3.3.0"
        },
        {
            "fixed": "3.3.11"
        }
    ]
}

Affected versions

v3.*
v3.2.0+git
v3.2.0_plus_git
v3.2.10_plus_git
v3.3.0
v3.3.0-rc.0
v3.3.0-rc.1
v3.3.0-rc.2
v3.3.0-rc.3
v3.3.0-rc.4
v3.3.1
v3.3.10
v3.3.2
v3.3.3
v3.3.4
v3.3.5
v3.3.6
v3.3.7
v3.3.8
v3.3.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16886.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "7.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "7.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "7.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "30"
            }
        ]
    }
]