CVE-2021-3636
Quick assessment
Affected
n/a openshift
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Red Hat OpenShift是美国红帽（Red Hat）公司的一款平台即服务（PaaS）云计算平台，它支持构建、测试、部署和运行应用程序。 OpenShift 4.8 版之前版本存在授权问题漏洞，该漏洞源于集群内服务 CA 生成的证书错误地包含了附加证书。
Possible ATT&CK Techniques 1 AI
T1557.001 · Name Resolution Poisoning and SMB Relay
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I. Basic Information for CVE-2021-3636
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
It was found in OpenShift, before version 4.8, that the generated certificate for the in-cluster Service CA, incorrectly included additional certificates. The Service CA is automatically mounted into all pods, allowing them to safely connect to trusted in-cluster services that present certificates signed by the trusted Service CA. The incorrect inclusion of additional CAs in this certificate would allow an attacker that compromises any of the additional CAs to masquerade as a trusted in-cluster service.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat OpenShift 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat OpenShift是美国红帽（Red Hat）公司的一款平台即服务（PaaS）云计算平台，它支持构建、测试、部署和运行应用程序。 OpenShift 4.8 版之前版本存在授权问题漏洞，该漏洞源于集群内服务 CA 生成的证书错误地包含了附加证书。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | openshift | openshift 4.8 | - |
|
II. Public POCs for CVE-2021-3636
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-3636 (1)
-
https://bugzilla.redhat.com/show_bug.cgi?id=1978621 x_refsource_MISC
Same Patch Batch · n/a · 2021-07-30 · 11 CVEs total
| CVE-2021-27495 | Ypsomed mylife App 安全漏洞 | |
| CVE-2021-27491 | Ypsomed mylife App 安全漏洞 | |
| CVE-2021-22521 | Micro Focus ZENworks Configuration Management 权限许可和访问控制问题漏洞 | |
| CVE-2021-35193 | Eaglesoft 信任管理问题漏洞 | |
| CVE-2021-29298 | Emerson GE Automation Proficy Machine 输入验证错误漏洞 | |
| CVE-2021-29297 | Emerson GE Automation Proficy Machine 缓冲区错误漏洞 | |
| CVE-2021-37746 | Claws Mail 输入验证错误漏洞 | |
| CVE-2020-26563 | ObjectPlanet Opinio 跨站脚本漏洞 | |
| CVE-2021-37743 | MISP 跨站脚本漏洞 | |
| CVE-2021-37742 | MISP 跨站脚本漏洞 |
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V. Comments for CVE-2021-3636
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