Overview
- 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.
- Source
- secalert@redhat.com
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 8.1
- Impact score
- 5.9
- Exploitability score
- 2.2
- Vector string
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 3.0
- Type
- Secondary
- Base score
- 6.8
- Impact score
- 5.2
- Exploitability score
- 1.6
- Vector string
- CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 6.8
- Impact score
- 6.4
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:P/I:P/A:P
Social media
- Hype score
- Not currently trending
Configurations
[
{
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{
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"matchCriteriaId": "9D800DC3-16F0-4C3A-AC0B-D63870AD2DEC",
"versionEndExcluding": "3.2.26",
"versionStartIncluding": "3.2.0"
},
{
"criteria": "cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7CCC0145-D7EA-4CD2-B751-858F21F56272",
"versionEndExcluding": "3.3.11",
"versionStartIncluding": "3.3.0"
}
],
"operator": "OR"
}
]
},
{
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},
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"vulnerable": true,
"matchCriteriaId": "51EF4996-72F4-4FA4-814F-F5991E7A8318"
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