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CVE-2024-11736— Org.keycloak:keycloak-quarkus-server: unrestricted admin use of system and environment variables

Quick assessment

Affected
CVE-2024-11736
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.

Keycloak是Keycloak开源的一种开源身份和访问管理解决方案。 Keycloak 26.0.8之前版本存在安全漏洞，该漏洞源于管理员用户可能通过用户可配置的URL访问敏感的服务器环境变量和系统属性。

CVSS 4.9 · Medium EPSS 0.77% · P54

Possible ATT&CK Techniques 1 AI

T1552 · Unsecured Credentials

Affected Version Matrix 8

VendorProduct Version RangeStatus
None None < 26.0.8 affected
Red Hat Red Hat Build of Keycloak any affected
Red Hat Red Hat build of Keycloak 26.0 26.0.8-1< * unaffected
26.0-7< * unaffected
26.0-8< * unaffected
Red Hat Red Hat JBoss Enterprise Application Platform 8 any unaffected
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack any unaffected
Red Hat RHBK 26.0.8 any unaffected

I. Basic Information for CVE-2024-11736

Vulnerability Information
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Vulnerability Title
Org.keycloak:keycloak-quarkus-server: unrestricted admin use of system and environment variables
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Keycloak. Admin users may have to access sensitive server environment variables and system properties through user-configurable URLs. When configuring backchannel logout URLs or admin URLs, admin users can include placeholders like ${env.VARNAME} or ${PROPNAME}. The server replaces these placeholders with the actual values of environment variables or system properties during URL processing.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过环境变量导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Keycloak 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Keycloak是Keycloak开源的一种开源身份和访问管理解决方案。 Keycloak 26.0.8之前版本存在安全漏洞，该漏洞源于管理员用户可能通过用户可配置的URL访问敏感的服务器环境变量和系统属性。
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
- - 0 ~ 26.0.8 -
Red Hat Red Hat build of Keycloak 26.0 26.0.8-1 ~ * cpe:/a:redhat:build_keycloak:26.0::el9
Red Hat Red Hat build of Keycloak 26.0 26.0-7 ~ * cpe:/a:redhat:build_keycloak:26.0::el9
Red Hat Red Hat build of Keycloak 26.0 26.0-8 ~ * cpe:/a:redhat:build_keycloak:26.0::el9
Red Hat RHBK 26.0.8 - cpe:/a:redhat:build_keycloak:26.0
Red Hat Red Hat Build of Keycloak - cpe:/a:redhat:build_keycloak:
Red Hat Red Hat JBoss Enterprise Application Platform 8 - cpe:/a:redhat:jboss_enterprise_application_platform:8
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack - cpe:/a:redhat:jbosseapxp

II. Public POCs for CVE-2024-11736

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2024-11736

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Vendor Advisories for CVE-2024-11736 (4)

IV. Related Vulnerabilities

Same weakness: CWE-526

V. Comments for CVE-2024-11736

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