CVE-2022-34871 in Centreon
Summary
by MITRE • 08/03/2022
This vulnerability allows remote attackers to escalate privileges on affected installations of Centreon. Authentication is required to exploit this vulnerability. The specific flaw exists within the configuration of poller resources. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to escalate privileges to the level of an administrator. Was ZDI-CAN-16335.
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Analysis
by VulDB Data Team • 08/04/2022
This vulnerability represents a critical privilege escalation flaw in Centreon, a widely deployed network monitoring and management platform that serves as a cornerstone for IT infrastructure oversight in enterprise environments. The vulnerability resides within the poller resource configuration mechanisms, which are fundamental components responsible for collecting and processing data from network devices. The security implications are particularly severe given that Centreon typically operates with elevated privileges to access critical network infrastructure, making it an attractive target for attackers seeking persistent administrative access. The vulnerability was identified and tracked as ZDI-CAN-16335 before being assigned the CVE identifier CVE-2022-34871, highlighting its significance within the cybersecurity community and the coordinated vulnerability disclosure process that organizations follow to address such threats.
The technical root cause of this vulnerability stems from inadequate input validation within the SQL query construction process, specifically when handling user-supplied strings in poller resource configurations. This represents a classic SQL injection vulnerability pattern that falls under CWE-89, which categorizes improper neutralization of special elements used in SQL commands. The flaw manifests when the application fails to properly sanitize or validate user input before incorporating it into database queries, allowing malicious actors to inject arbitrary SQL commands. The vulnerability's exploitation requires authentication, meaning that an attacker must first establish valid credentials, but once achieved, the impact extends beyond simple data access to full administrative control of the Centreon platform. This authentication requirement does not mitigate the severity, as the privilege escalation potential can be leveraged to gain administrative access to the entire monitoring infrastructure, potentially enabling attackers to manipulate monitoring data, disable security controls, or establish persistent access points within the network.
The operational impact of this vulnerability extends far beyond the immediate technical compromise, affecting the integrity and availability of critical network monitoring services that organizations rely upon for security operations and incident response. When an attacker successfully exploits this vulnerability, they can elevate their privileges to administrator level, gaining unrestricted access to all Centreon functionalities including the ability to modify monitoring configurations, add or remove poller resources, access sensitive configuration data, and manipulate monitoring results that could mask malicious activities. This type of privilege escalation aligns with ATT&CK technique T1078.004, which covers valid accounts with elevated privileges, and represents a significant risk to enterprise security posture. The vulnerability's presence in poller resource configuration also means that attackers could potentially compromise not just the Centreon server itself but also the network devices that the pollers monitor, creating a potential attack surface that extends throughout the entire monitored infrastructure. Organizations using Centreon for security monitoring and network management face severe operational disruption risks, as the compromise of this platform could lead to undetected network intrusions, false security alerts, and complete loss of visibility into their network operations.
Mitigation strategies for this vulnerability require a multi-layered approach that addresses both immediate remediation and long-term security hardening. The primary and most critical mitigation involves applying the vendor-provided security patches that address the SQL injection flaw in poller resource configuration handling. Organizations should also implement network segmentation and access control measures to limit the blast radius of potential exploitation, ensuring that Centreon systems are isolated from critical network segments where possible. The implementation of principle of least privilege should be enforced, limiting the administrative access of Centreon users and ensuring that only authorized personnel have access to the poller resource configuration interfaces. Additionally, organizations should enhance their monitoring capabilities to detect unusual patterns in Centreon configuration changes and user activities that might indicate exploitation attempts. Security controls should include regular input validation testing, database query auditing, and implementation of web application firewalls to detect and prevent SQL injection attempts. The vulnerability's classification as a privilege escalation issue also necessitates enhanced monitoring of administrative account usage, session management, and regular security assessments of Centreon configurations to identify and remediate similar vulnerabilities that may exist in the broader platform ecosystem.