Keycloak URL Placeholder Abuse Exposes Server Env Vars
CVE-2024-11736 Published on January 14, 2025
Org.keycloak:keycloak-quarkus-server: unrestricted admin use of system and environment variables
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.
Vulnerability Analysis
CVE-2024-11736 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Timeline
Reported to Red Hat.
Made public. 48 days later.
Weakness Type
Exposure of Sensitive Information Through Environmental Variables
Environmental variables may contain sensitive information about a remote server.
Products Associated with CVE-2024-11736
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Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.