CVE-2019-17645 in Centreon
Summary
by MITRE
An issue was discovered in Centreon before 2.8.31, 18.10.9, 19.04.6, and 19.10.3. It provides sensitive information via an unauthenticated direct request for include/configuration/configObject/service/refreshMacroAjax.php.
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Analysis
by VulDB Data Team • 04/09/2024
The vulnerability identified as CVE-2019-17645 represents a critical information disclosure flaw in the Centreon monitoring platform, affecting versions prior to 2.8.31, 18.10.9, 19.04.6, and 19.10.3. This issue stems from insufficient access controls within the web application's authentication framework, allowing unauthenticated attackers to directly access sensitive configuration files through a specific endpoint. The affected path include/configuration/configObject/service/refreshMacroAjax.php demonstrates a clear lack of proper authorization checks, enabling malicious actors to bypass normal authentication mechanisms and retrieve confidential system information.
The technical implementation of this vulnerability exposes a fundamental flaw in the application's security architecture where the refreshMacroAjax.php script fails to validate user credentials or session state before processing requests. This represents a classic case of inadequate input validation and access control enforcement, classified under CWE-285 - Improper Authorization. The vulnerability exists because the application does not properly verify whether the requesting entity possesses sufficient privileges to access the requested configuration resources, creating an attack surface that directly violates the principle of least privilege. The unauthenticated nature of the exploit means that any remote attacker can access the endpoint without requiring valid credentials, significantly amplifying the risk.
From an operational impact perspective, this vulnerability compromises the integrity of the monitoring environment by exposing sensitive configuration data that could include service definitions, macro configurations, and potentially system credentials or connection parameters. Attackers exploiting this flaw could gain insights into the organization's infrastructure monitoring setup, identify potential targets for further attacks, and understand the structure of monitored services. The information disclosure could facilitate more sophisticated attacks such as privilege escalation attempts or targeted exploitation of other vulnerabilities within the Centreon platform. This vulnerability directly impacts the confidentiality aspect of the CIA triad and can be categorized under the ATT&CK technique T1083 - File and Directory Discovery, as it enables unauthorized access to configuration files.
Organizations should implement immediate mitigations including applying the vendor patches released for versions 2.8.31, 18.10.9, 19.04.6, and 19.10.3, which contain proper authentication checks and authorization controls. Network segmentation should be implemented to restrict access to the Centreon web interface, and additional monitoring should be deployed to detect unauthorized access attempts to sensitive endpoints. Security teams should also review their access control policies and ensure that all application components properly validate user privileges before processing requests. The remediation process should include comprehensive testing to verify that the authentication mechanisms function correctly and that no other similar vulnerabilities exist within the application's codebase. Additionally, implementing web application firewalls and intrusion detection systems can provide additional layers of protection against exploitation attempts targeting this specific vulnerability.