CVE-2022-30036 in grandMA2 Light
Summary
by MITRE • 08/21/2022
MA Lighting grandMA2 Light has a password of root for the root account. NOTE: The vendor's position is that the product was designed for isolated networks. Also, the successor product, grandMA3, is not affected by this vulnerability.
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Analysis
by VulDB Data Team • 09/24/2022
The vulnerability identified as CVE-2022-30036 affects the MA Lighting grandMA2 lighting control system, representing a critical security weakness that stems from improper default credential configuration. This issue manifests through the system's use of a hardcoded password of "root" for the root administrative account, creating an easily exploitable authentication bypass vector that undermines the fundamental security posture of the lighting control infrastructure. The vulnerability is particularly concerning given that the grandMA2 system is designed for use in professional lighting environments where security considerations are often secondary to operational functionality. This default credential configuration aligns with CWE-798, which specifically addresses the use of hard-coded credentials in software systems, and represents a classic example of insufficient authentication mechanisms that can be exploited by attackers with minimal technical expertise.
The technical flaw in the grandMA2 system operates through a design decision that prioritizes operational convenience over security implementation, where the manufacturer chose to implement a well-known default password for administrative access. This configuration creates an immediate and persistent risk that allows unauthorized users to gain full administrative privileges without requiring any additional authentication factors or complex exploitation techniques. The vulnerability exists at the authentication layer and directly impacts the system's ability to maintain secure access controls, making it a prime target for attackers seeking to compromise lighting control systems in professional environments. From an operational perspective, this flaw enables attackers to potentially manipulate lighting configurations, access sensitive operational data, and disrupt critical lighting events that may involve large audiences or important productions.
The operational impact of CVE-2022-30036 extends beyond simple unauthorized access, as lighting control systems often serve as critical infrastructure components in venues such as theaters, concert halls, sports arenas, and corporate events where lighting control is essential for safety, security, and production quality. An attacker who successfully exploits this vulnerability could potentially cause significant disruption to lighting operations, create safety hazards through improper lighting control, or even use the compromised system as a foothold for further attacks within the network. The vulnerability's persistence and ease of exploitation make it particularly dangerous in environments where the system may be connected to other networked devices or where the lighting control system interfaces with building management systems or security infrastructure. This aligns with ATT&CK technique T1078 which covers legitimate credentials usage, and represents a clear example of how default credentials can enable lateral movement and privilege escalation within networked environments.
Organizations using the grandMA2 system should implement immediate mitigations including changing the default root password to a strong, unique credential, disabling unnecessary administrative accounts, and implementing network segmentation to isolate the lighting control system from other networked infrastructure. The vendor's position that the product was designed for isolated networks does not eliminate the need for proper security hardening, as network isolation alone is insufficient to protect against insider threats or compromised network segments. Security professionals should consider implementing additional controls such as network monitoring for unauthorized access attempts, regular security assessments of the lighting control environment, and ensuring that any networked components of the system are properly configured with appropriate firewall rules and access controls. The successor product grandMA3 correctly addresses this vulnerability, demonstrating the importance of proper security design in industrial control systems and providing a reference point for implementing secure configurations in legacy systems that cannot be immediately upgraded.