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CVE-2021-3827

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 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 存在安全漏洞，该漏洞源于默认的 ECP 绑定流允许绕过其他身份验证流。攻击者可以通过发送带有 AuthnRequest 和 Authorization 标头以及用户凭据的 SOAP 请求来绕过 MFA 身份验证。

AI Predicted 9.1 Difficulty: Easy EPSS 1.09% · P64
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I. Basic Information for CVE-2021-3827

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in keycloak, where the default ECP binding flow allows other authentication flows to be bypassed. By exploiting this behavior, an attacker can bypass the MFA authentication by sending a SOAP request with an AuthnRequest and Authorization header with the user's credentials. The highest threat from this vulnerability is to confidentiality and integrity.
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 Keycloak 授权问题漏洞
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 存在安全漏洞，该漏洞源于默认的 ECP 绑定流允许绕过其他身份验证流。攻击者可以通过发送带有 AuthnRequest 和 Authorization 标头以及用户凭据的 SOAP 请求来绕过 MFA 身份验证。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- keycloak Fixed in v18.0.0 -

II. Public POCs for CVE-2021-3827

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III. Intelligence Information for CVE-2021-3827

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Patches & Fixes for CVE-2021-3827 (1)

Vendor Advisories for CVE-2021-3827 (3)

Same Patch Batch · n/a · 2022-08-23 · 54 CVEs total

CVE-2022-24381 7.5 HIGH Denial of Service (DoS)
CVE-2022-25888 7.5 HIGH Denial of Service (DoS)
CVE-2022-25761 7.5 HIGH Denial of Service (DoS)
CVE-2022-24298 7.5 HIGH Denial of Service (DoS)
CVE-2022-21208 7.5 HIGH Denial of Service (DoS)
CVE-2022-25231 7.5 HIGH Denial of Service (DoS)
CVE-2022-25304 7.5 HIGH Denial of Service (DoS)
CVE-2022-25302 7.5 HIGH Denial of Service (DoS)
CVE-2022-37428 6.5 MEDIUM PowerDNS Recursor 安全漏洞
CVE-2021-3764 Linux kernel 安全漏洞
CVE-2021-3670 Samba ldb 安全漏洞
CVE-2022-35115 IceWarp WebClient SQL注入漏洞
CVE-2020-35509 Red Hat Keycloak 信任管理问题漏洞
CVE-2021-3839 DPDK 缓冲区错误漏洞
CVE-2022-37111 BlueCMS SQL注入漏洞
CVE-2022-37112 BlueCMS SQL注入漏洞
CVE-2022-37113 BlueCMS SQL注入漏洞
CVE-2022-37223 jfinal cms SQL注入漏洞
CVE-2022-37199 jfinal cms SQL注入漏洞
CVE-2022-36261 taoCMS 路径遍历漏洞

Showing top 20 of 54 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-3827

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