CVE-2015-7905 in VisiLogic OPLC IDE
Summary
by MITRE
Unitronics VisiLogic OPLC IDE before 9.8.02 allows remote attackers to execute unspecified code via unknown vectors.
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Analysis
by VulDB Data Team • 05/11/2018
The vulnerability identified as CVE-2015-7905 affects Unitronics VisiLogic OPLC IDE versions prior to 9.8.02, representing a critical remote code execution flaw that exposes industrial control systems to significant cybersecurity threats. This vulnerability resides within the Integrated Development Environment used for programming Unitronics PLCs, making it particularly dangerous for operational technology environments where these systems operate. The unspecified nature of the attack vectors suggests that multiple pathways exist for exploitation, potentially including network-based attacks that could compromise the development environment and subsequently the target industrial control systems.
The technical flaw manifests in the inadequate input validation and sanitization mechanisms within the VisiLogic IDE software, allowing remote attackers to inject malicious code through unspecified attack vectors. This weakness creates a pathway for attackers to execute arbitrary code on systems running vulnerable versions of the software, potentially leading to complete system compromise. The vulnerability's classification as remote code execution places it within the category of high-severity threats that can be exploited without requiring physical access or local user privileges, making it particularly concerning for industrial environments where security boundaries may be less strictly enforced. The vulnerability's presence in the development environment creates a unique risk scenario where attackers can compromise not only the development workstation but also potentially gain insights into the target control systems.
The operational impact of CVE-2015-7905 extends beyond immediate system compromise to encompass potential disruption of industrial processes and safety systems. When attackers successfully exploit this vulnerability, they can execute malicious code that may manipulate control logic, disrupt production processes, or gain unauthorized access to sensitive operational data. The implications are particularly severe in critical infrastructure sectors where industrial control systems manage essential services such as power generation, water treatment, and manufacturing processes. The vulnerability's remote exploitability means that attackers can target these systems from anywhere on the internet, potentially compromising entire industrial networks that rely on Unitronics PLCs and VisiLogic IDE for their automation needs. This vulnerability aligns with attack patterns described in the MITRE ATT&CK framework under the execution and privilege escalation domains, where adversaries leverage development tools to establish persistent access and expand their control within target environments.
Organizations should implement immediate mitigation strategies including updating to VisiLogic IDE version 9.8.02 or later, which contains the necessary patches to address the vulnerability. Network segmentation and access controls should be strengthened to limit exposure of development environments to external networks, while monitoring systems should be deployed to detect anomalous behavior that might indicate exploitation attempts. The vulnerability demonstrates the importance of securing development environments as they often contain sensitive information and represent potential entry points for attackers targeting operational technology systems. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other industrial control system components, as this vulnerability highlights the broader challenge of securing OT environments against sophisticated cyber threats. Compliance with cybersecurity frameworks such as NIST SP 800-80 and IEC 62443 standards becomes critical in addressing such vulnerabilities and maintaining the security posture of industrial control systems.