CVE-2024-2700 in Quarkus
Summary
by MITRE • 04/04/2024
A vulnerability was found in the quarkus-core component. Quarkus captures local environment variables from the Quarkus namespace during the application's build, therefore, running the resulting application inherits the values captured at build time. Some local environment variables may have been set by the developer or CI environment for testing purposes, such as dropping the database during application startup or trusting all TLS certificates to accept self-signed certificates. If these properties are configured using environment variables or the .env facility, they are captured into the built application, which can lead to dangerous behavior if the application does not override these values. This behavior only happens for configuration properties from the `quarkus.*` namespace. Application-specific properties are not captured.
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Analysis
by VulDB Data Team • 06/20/2024
The vulnerability described in CVE-2024-2700 represents a critical configuration management flaw within the Quarkus framework's core component. This issue stems from the improper handling of environment variables during the application build process, creating a persistent security risk that can manifest in production environments. The quarkus-core component specifically captures local environment variables from the Quarkus namespace during application compilation, which then become embedded within the built artifact and inherited by the running application. This behavior creates a dangerous precedent where development and testing environment configurations are inadvertently carried forward into production deployments, potentially exposing applications to severe security risks.
The technical flaw manifests through the framework's configuration handling mechanism that indiscriminately captures environment variables from the quarkus. namespace without proper sanitization or validation. When developers or continuous integration systems set environment variables for testing purposes, such as database connection strings, TLS certificate trust settings, or other sensitive configurations, these values become permanently embedded in the compiled application binary. The vulnerability is particularly concerning because it specifically targets the quarkus. namespace, which contains critical application configuration properties that control security-sensitive behaviors. This includes properties that might enable database schema dropping during startup, trust all TLS certificates, or configure other potentially dangerous operational settings that should never be present in production environments.
The operational impact of this vulnerability extends beyond simple configuration leakage, creating a pathway for privilege escalation and unauthorized access to sensitive systems. Applications built with affected versions of Quarkus may inherit environment variables that were intended for testing or development purposes, such as those that disable SSL certificate validation or configure database connections to test environments. When these embedded configurations are not properly overridden in production, they can lead to applications running with reduced security posture, potentially allowing attackers to exploit the embedded test configurations. This vulnerability particularly affects systems where developers use environment variables for local development testing, and where these test configurations are not properly sanitized or overridden in production deployment pipelines.
Security mitigations for this vulnerability should focus on implementing comprehensive environment variable sanitization during the build process and establishing strict configuration management practices. Organizations should ensure that all environment variables used during development and testing are properly cleared or overridden before application compilation, particularly for the quarkus.* namespace properties. The recommended approach involves implementing build-time configuration validation that prevents sensitive test configurations from being embedded in production artifacts. Additionally, security teams should establish automated scanning processes that verify application binaries for embedded environment variables and ensure that only production-appropriate configurations are present. This vulnerability aligns with CWE-258 and CWE-259 categories related to insecure default configurations and weak credential management, while also mapping to ATT&CK techniques involving privilege escalation through configuration weaknesses and credential access through insecure application configuration. Organizations should also consider implementing configuration management tools that enforce proper separation between development and production configurations, ensuring that environment-specific settings are handled through secure deployment mechanisms rather than embedded application binaries.