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CVE-2023-3597— Keycloak: secondary factor bypass in step-up authentication

Quick assessment

Affected
Red Hat Red Hat build of Keycloak 22
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，该漏洞源于无法执行正确的身份验证。攻击者可以利用该漏洞把第二个身份认证因素与现有的身份验证因素一起注册到目标帐户，并只通过第二个因素完成认证。

CVSS 5.0 · Medium EPSS 0.60% · P47

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2023-3597

Vulnerability Information
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Vulnerability Title
Keycloak: secondary factor bypass in step-up authentication
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in Keycloak, where it does not correctly validate its client step-up authentication in org.keycloak.authentication. This flaw allows a remote user authenticated with a password to register a false second authentication factor along with an existing one and bypass authentication.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
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 安全漏洞
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，该漏洞源于无法执行正确的身份验证。攻击者可以利用该漏洞把第二个身份认证因素与现有的身份验证因素一起注册到目标帐户，并只通过第二个因素完成认证。
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
Red Hat Red Hat build of Keycloak 22 22.0.10-1 ~ * cpe:/a:redhat:build_keycloak:22::el9
Red Hat Red Hat build of Keycloak 22 22-13 ~ * cpe:/a:redhat:build_keycloak:22::el9
Red Hat Red Hat build of Keycloak 22 22-16 ~ * cpe:/a:redhat:build_keycloak:22::el9
Red Hat Red Hat build of Keycloak 22.0.10 - cpe:/a:redhat:build_keycloak:22
Red Hat RHSSO 7.6.8 - cpe:/a:redhat:red_hat_single_sign_on:7.6

II. Public POCs for CVE-2023-3597

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III. Intelligence Information for CVE-2023-3597

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Vendor Advisories for CVE-2023-3597 (4)

IV. Related Vulnerabilities

Same weakness: CWE-287

V. Comments for CVE-2023-3597

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