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CVE-2021-3424

Quick assessment

Affected
n/a keycloak
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 Single Sign-On 7是美国红帽（Red Hat）公司的一个基于 Saml 2.0、OpenId Connect 和 Oauth 2.0 规范的 Web 单点登录和身份联合。 Red Hat Single Sign-On 7 存在安全漏洞，该漏洞允许模拟用户的国际化域名(IDN)进行攻击。

AI Predicted 6.5 Difficulty: Easy EPSS 0.77% · P54

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2021-3424

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Single Sign-On 7安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Single Sign-On 7是美国红帽（Red Hat）公司的一个基于 Saml 2.0、OpenId Connect 和 Oauth 2.0 规范的 Web 单点登录和身份联合。 Red Hat Single Sign-On 7 存在安全漏洞，该漏洞允许模拟用户的国际化域名(IDN)进行攻击。
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
- keycloak as shipped in Red Hat Single Sign-On 7.4 -

II. Public POCs for CVE-2021-3424

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III. Intelligence Information for CVE-2021-3424

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Vendor Advisories for CVE-2021-3424 (1)

Same Patch Batch · n/a · 2021-06-01 · 38 CVEs total

CVE-2021-23017 F5 NGINX Controller 安全漏洞
CVE-2020-26668 Fastspot BigTree SQL注入漏洞
CVE-2021-31641 CHIYU科技BF-630W 跨站脚本漏洞
CVE-2021-3412 3Scale 安全漏洞
CVE-2021-3516 libxml2 资源管理错误漏洞
CVE-2021-20306 Red Hat BPMN Editor 安全漏洞
CVE-2021-3515 PostgreSQL 操作系统命令注入漏洞
CVE-2021-3495 Kiali-operator 安全漏洞
CVE-2021-3543 Red Hat, Inc. Nitro Enclaves内核驱动 资源管理错误漏洞
CVE-2020-27748 xdg-utils 安全漏洞
CVE-2020-26669 Fastspot BigTree 跨站脚本漏洞
CVE-2021-23021 F5 NGINX Controller 安全漏洞
CVE-2021-23020 NGINX控制器 安全特征问题漏洞
CVE-2021-23019 F5 NGINX Controller 安全漏洞
CVE-2021-23018 Nginx 控制器 安全漏洞
CVE-2021-27828 In4Velocity In4Suite ERP SQL注入漏洞
CVE-2021-25932 Opennms Group OpenNMS 跨站脚本漏洞
CVE-2021-31684 Github json-smart-v1 缓冲区错误漏洞
CVE-2021-32027 PostgreSQL 输入验证错误漏洞
CVE-2020-22036 FFmpeg 缓冲区错误漏洞

Showing top 20 of 38 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: keycloak
Same vendor: n/a
Same weakness: CWE-287

V. Comments for CVE-2021-3424

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