Modbus SCADA Devices Detection Scanner
This scanner detects the use of Modbus SCADA Devices in digital assets. It identifies device information, including vendor and firmware details, to help understand the deployment and configuration.
Short Info
Level
Critical
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
4 weeks
Scan only one
Domain, IPv4, Subdomain
Toolbox
-
Modbus is widely used in industrial automation systems for communication between programmable logic controllers (PLCs) and other devices. It is particularly popular in SCADA systems where it facilitates real-time monitoring and control. The protocol allows for efficient data exchange in environments like manufacturing, energy, and utility sectors. Organizations use Modbus devices to ensure smooth operations, often in critical infrastructure where reliability and accuracy are paramount.
This scanner detects Modbus SCADA devices and enumerates their Slave IDs (SIDs). It provides detailed information, including device identification, vendor name, and firmware version. The scanner is particularly useful in identifying potentially insecure devices or misconfigurations within an industrial network. By leveraging this tool, administrators can map out the network and assess the security posture of their SCADA systems. Such visibility is critical for understanding and mitigating risks associated with industrial control systems.
Technically, the scanner communicates with Modbus devices over TCP port 502, sending specially crafted packets to query slave devices. It extracts and decodes responses to retrieve device-specific information. The process includes identifying valid SIDs and recursively collecting identification objects, including vendor and firmware data. The scanner also captures any error messages or exceptions returned by the devices, providing additional insights into device behavior and configuration.
When exploited by malicious actors, vulnerabilities in Modbus devices can lead to unauthorized access, data manipulation, or service disruptions. Attackers could potentially extract sensitive operational data or introduce harmful commands to disrupt industrial processes. Such vulnerabilities are especially concerning in critical infrastructure sectors where operational continuity is essential.
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