CVE-2019-19487 in Centreon
Summary
by MITRE
Command Injection in minPlayCommand.php in Centreon (19.04.4 and below) allows an attacker to achieve command injection via a plugin test.
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Analysis
by VulDB Data Team • 04/18/2024
The vulnerability identified as CVE-2019-19487 represents a critical command injection flaw within the Centreon monitoring platform version 19.04.4 and earlier. This issue specifically affects the minPlayCommand.php component which is utilized for plugin testing functionality within the platform's web interface. The vulnerability stems from inadequate input validation and sanitization mechanisms that fail to properly escape or filter user-supplied data before incorporating it into system commands. Centreon is widely deployed in enterprise environments for network and system monitoring, making this vulnerability particularly concerning as it provides attackers with potential access to underlying operating systems through the web interface.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious input during plugin testing operations that gets directly executed as system commands without proper sanitization. This type of flaw falls under the CWE-77 category known as "Command Injection" which is classified as a high-severity vulnerability in the Common Weakness Enumeration catalog. The vulnerability specifically targets the command execution flow within the minPlayCommand.php script where user-provided parameters are concatenated into shell commands without proper validation or escaping mechanisms. Attackers can leverage this weakness to execute arbitrary commands with the privileges of the web server process, potentially leading to complete system compromise.
The operational impact of this vulnerability extends beyond simple command execution as it can enable attackers to escalate privileges, access sensitive data, install backdoors, or use the compromised system as a pivot point for further attacks within the network infrastructure. Given that Centreon is commonly used for monitoring critical network components, successful exploitation could provide attackers with visibility into network traffic, system configurations, and other monitored assets. The vulnerability affects the platform's plugin testing functionality which is frequently used by administrators, making it a particularly attractive target for exploitation. According to ATT&CK framework, this vulnerability maps to T1059.001 (Command and Scripting Interpreter: PowerShell) and T1068 (Exploitation for Privilege Escalation) techniques, as it allows for arbitrary command execution and potential privilege escalation.
Mitigation strategies for CVE-2019-19487 should prioritize immediate patching of Centreon installations to versions 19.10.0 or later where this vulnerability has been addressed through proper input validation and sanitization. Organizations should implement network segmentation to limit access to Centreon web interfaces and restrict administrative privileges to only essential personnel. Additional protective measures include disabling unnecessary plugin testing features, implementing web application firewalls to detect and block malicious payloads, and conducting regular security audits of web applications. The vulnerability highlights the importance of proper input validation practices and adherence to secure coding guidelines that prevent command injection attacks by ensuring all user-supplied data is properly escaped or validated before being used in system command contexts. Organizations should also consider implementing automated vulnerability scanning tools to identify similar issues in other applications within their infrastructure.