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CVE-2021-20238

EPSS 0.24% · P47
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I. Basic Information for CVE-2021-20238

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
It was found in OpenShift Container Platform 4 that ignition config, served by the Machine Config Server, can be accessed externally from clusters without authentication. The MCS endpoint (port 22623) provides ignition configuration used for bootstrapping Nodes and can include some sensitive data, e.g. registry pull secrets. There are two scenarios where this data can be accessed. The first is on Baremetal, OpenStack, Ovirt, Vsphere and KubeVirt deployments which do not have a separate internal API endpoint and allow access from outside the cluster to port 22623 from the standard OpenShift API Virtual IP address. The second is on cloud deployments when using unsupported network plugins, which do not create iptables rules that prevent to port 22623. In this scenario, the ignition config is exposed to all pods within the cluster and cannot be accessed externally.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Red Hat OpenShift Container Platform 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat OpenShift Container Platform是美国红帽（Red Hat）公司的一套可帮助企业在物理、虚拟和公共云基础架构之间开发、部署和管理现有基于容器的应用程序的应用平台。 OpenShift Container Platform 4 存在访问控制错误漏洞，该漏洞源于 Machine Config Server 提供的 ignition config 无需身份验证即可从集群外部访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
-openshift/machine-config-operator affecting versions up to, including ose-machine-config-operator-container-v4.9.0 -

II. Public POCs for CVE-2021-20238

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III. Intelligence Information for CVE-2021-20238

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Same Patch Batch · n/a · 2022-04-01 · 32 CVEs total

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CVE-2022-240668.1 HIGHCommand Injection
CVE-2022-22950Vmware Spring Framework 安全漏洞
CVE-2021-23247quick game engine 命令注入漏洞
CVE-2021-32503SICK FieldEcho 资源管理错误漏洞
CVE-2021-3461Red Hat Keycloak代码问题漏洞
CVE-2021-20295Red Hat Enterprise Linux 缓冲区错误漏洞
CVE-2021-27223Kaspersky Anti-Virus安全漏洞
CVE-2022-27534Kaspersky Anti-Virus 安全漏洞
CVE-2022-25155Mitsubishi Electric MELSEC iQ-F series 授权问题漏洞
CVE-2022-25156Mitsubishi Electric MELSEC iQ-F series 加密问题漏洞
CVE-2022-25157Mitsubishi Electric MELSEC iQ-F series 授权问题漏洞
CVE-2022-25159Mitsubishi Electric MELSEC iQ-F series 安全漏洞
CVE-2022-25158Mitsubishi Electric MELSEC iQ-F series 安全漏洞
CVE-2022-25160Mitsubishi Electric Factory Automation 安全漏洞
CVE-2022-22965Spring Framework 代码注入漏洞
CVE-2021-3847Linux kernel 安全漏洞

Showing top 20 of 32 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: openshift/machine-config-operator
Same vendor: n/a
Same weakness: CWE-287

V. Comments for CVE-2021-20238

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