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CVE-2021-20323

EPSS 66.05% · P99
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I. Basic Information for CVE-2021-20323

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A POST based reflected Cross Site Scripting vulnerability on has been identified in Keycloak.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Red Hat Keycloak 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Keycloak是美国红帽（Red Hat）公司的一套为现代应用和服务提供身份验证和管理功能的软件。 Red Hat Keycloak存在跨站脚本漏洞，该漏洞源于POST请求参数缺少验证。
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)

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Affected Products

VendorProductAffected VersionsCPESubscribe
-keycloak-services keycloak 17.0.0 -

II. Public POCs for CVE-2021-20323

#POC DescriptionSource LinkShenlong Link
1Nonehttps://github.com/ndmalc/CVE-2021-20323POC Details
2Tool for finding CVE-2021-20323https://github.com/Cappricio-Securities/CVE-2021-20323POC Details
3Exploitation Scanner Cross Site Scripting vulnerability in Keycloak.https://github.com/cscpwn0sec/CVE-2021-20323POC Details
4Keycloak 10.0.0 to 18.0.0 contains a cross-site scripting vulnerability via the client-registrations endpoint. On a POST request, the application does not sanitize an unknown attribute name before including it in the error response with a 'Content-Type' of text/hml. Once reflected, the response is interpreted as HTML. This can be performed on any realm present on the Keycloak instance. Since the bug requires Content-Type application/json and is submitted via a POST, there is no common path to exploit that has a user impact. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-20323.yamlPOC Details
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III. Intelligence Information for CVE-2021-20323

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Same Patch Batch · n/a · 2022-03-25 · 53 CVEs total

CVE-2022-25582ClassCMS 跨站脚本漏洞
CVE-2022-0897Red Hat libvirt 安全漏洞
CVE-2022-0435Linux kernel 缓冲区错误漏洞
CVE-2021-3933ILM OpenEXR 输入验证错误漏洞
CVE-2021-4203Linux kernel 资源管理错误漏洞
CVE-2021-4147Red Hat libvirt 安全漏洞
CVE-2021-3941ILM OpenEXR 数字错误漏洞
CVE-2022-0330Linux kernel 缓冲区错误漏洞
CVE-2021-43091YesWiki SQL注入漏洞
CVE-2022-25577ALF-BanCo 信任管理问题漏洞
CVE-2022-25574DouPHP 跨站脚本漏洞
CVE-2022-26263Yonyou u8 跨站脚本漏洞
CVE-2022-27881OpenBSD 安全漏洞
CVE-2022-27882OpenBSD 安全漏洞
CVE-2021-43636TotoLink T10 安全漏洞
CVE-2021-22100cloud foundry 资源管理错误漏洞
CVE-2021-4157Linux kernel 缓冲区错误漏洞
CVE-2021-4202Linux kernel 资源管理错误漏洞
CVE-2021-20290OpenSC 安全漏洞
CVE-2021-3567SUSE OpenStack Cloud 缓冲区错误漏洞

Showing top 20 of 53 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: n/a
Same weakness: CWE-79

V. Comments for CVE-2021-20323

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