CVE-2020-10620 in SoftPAC
Summary
by MITRE
Opto 22 SoftPAC Project Version 9.6 and prior. SoftPAC communication does not include any credentials. This allows an attacker with network access to directly communicate with SoftPAC, including, for example, stopping the service remotely.
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Analysis
by VulDB Data Team • 05/15/2020
The vulnerability identified as CVE-2020-10620 affects Opto 22 SoftPAC Project Version 9.6 and earlier implementations, representing a critical security flaw in industrial control systems communication protocols. This issue stems from the absence of authentication mechanisms within the SoftPAC communication framework, creating an inherent security weakness that directly impacts operational technology environments. The vulnerability operates at the network communication layer where devices fail to implement any form of credential verification, leaving industrial automation systems exposed to unauthorized access and manipulation. This design flaw fundamentally compromises the security posture of connected industrial equipment, as it eliminates any barrier to entry for potential attackers seeking to interact with these systems.
The technical implementation of this vulnerability manifests through the complete absence of authentication protocols during SoftPAC communication sessions. When devices attempt to establish network connections with SoftPAC systems, no credentials or authentication tokens are required for access, making the communication channel inherently insecure. This lack of authentication allows any network entity with access to the communication channel to establish connections and issue commands to the SoftPAC device. The vulnerability specifically enables remote manipulation capabilities including the ability to stop services, which represents a significant operational risk in industrial environments where system availability and control are paramount. The absence of credential verification creates an attack surface where unauthorized parties can execute arbitrary commands without proper authorization, potentially leading to system disruption or compromise.
The operational impact of this vulnerability extends beyond simple service interruption to encompass broader industrial control system security implications. Attackers with network access can exploit this weakness to remotely halt critical processes, potentially causing production downtime, safety hazards, or operational disruptions in manufacturing environments. The vulnerability particularly affects environments where SoftPAC systems are used in critical infrastructure applications, as the ability to remotely stop services without authentication creates a direct pathway for operational sabotage or system compromise. This weakness undermines the fundamental security principles of industrial control systems, where authentication and access control are essential for maintaining operational integrity. The vulnerability's impact is amplified in environments where network segmentation is inadequate, as attackers can leverage this weakness to move laterally through industrial networks without additional authentication requirements.
Organizations should implement multiple layers of mitigation strategies to address this vulnerability, beginning with immediate network segmentation to isolate SoftPAC systems from general network access. The implementation of network access controls and firewalls can help restrict communication to only authorized endpoints, while regular security assessments should identify and remediate similar authentication weaknesses in other industrial control system components. The vulnerability aligns with CWE-305 Authentication Issues, specifically addressing the absence of proper authentication mechanisms, and represents a clear violation of security best practices outlined in NIST SP 800-82 for industrial control systems. Mitigation efforts should also include network monitoring to detect unauthorized communication attempts and regular updates to ensure that newer versions of the SoftPAC software, which may include enhanced authentication mechanisms, are deployed. The ATT&CK framework categorizes this vulnerability under initial access and execution tactics, where adversaries can leverage weak authentication to gain unauthorized access to industrial control systems and execute commands without proper authorization, making it a critical concern for industrial cybersecurity programs.