CVE-2021-3424
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I. Basic Information for CVE-2021-3424
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
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: 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 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
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://bugzilla.redhat.com/show_bug.cgi?id=1933320x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-3424
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
- CVE-2025-12150
Org.keycloak/keycloak-services: webauthn attestation stateme - CVE-2025-13467
Org.keycloak.storage.ldap: keycloak: deserialization of untr - CVE-2025-11538
Keycloak-server: debug default bind address - CVE-2025-12390
Org.keycloak.protocol.oidc.endpoints.logoutendpoint: offline - CVE-2025-10939
Org.keycloak/keycloak-quarkus-server: unable to restrict acc
Same vendor: n/a
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Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
Same weakness: CWE-287
- CVE-2026-8244
Industrial Application Software IAS Canias ERP Login RMI imp - CVE-2026-8216
Industrial Application Software IAS Canias ERP Java RMI Sess - CVE-2026-8214
Industrial Application Software IAS Canias ERP RMI doAction - CVE-2026-42560
auth: Patreon provider assigns the same local user ID to eve - CVE-2026-41070
openvpn-auth-oauth2 returns FUNC_SUCCESS on client-deny, all
V. Comments for CVE-2021-3424
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