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RedhatCVE-2021-20198

HistoryFeb 23, 2021 - 6:15 p.m.

CVE-2021-20198

2021-02-2318:15:13

CWE-306

redhat

web.nvd.nist.gov

118

openshift

installer

vulnerability

remote code execution

data confidentiality

integrity

system availability

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8.5

Confidence

High

EPSS

0.002

Percentile

52.1%

JSON

A flaw was found in the OpenShift Installer before version v0.9.0-master.0.20210125200451-95101da940b0. During installation of OpenShift Container Platform 4 clusters, bootstrap nodes are provisioned with anonymous authentication enabled on kubelet port 10250. A remote attacker able to reach this port during installation can make unauthenticated /exec requests to execute arbitrary commands within running containers. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Affected configurations

Nvd

Vulners

Node

redhatopenshift_installerRange<0.9.0-master.0.20210125200451-95101da940b0

VendorProductVersionCPE
redhatopenshift_installer*cpe:2.3:a:redhat:openshift_installer:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
redhat	openshift_installer	*	cpe:2.3:a:redhat:openshift_installer::::::::

CNA Affected

[
  {
    "product": "openshift/installer",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "openshift/installer v0.9.0-master.0.20210125200451-95101da940b0"
      }
    ]
  }
]

References

bugzilla.redhat.com/show_bug.cgi?id=1920764

Social References

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8.5

Confidence

High

EPSS

0.002

Percentile

52.1%

JSON

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