CVE-2019-13541 in Cscape
Summary
by MITRE
In Horner Automation Cscape 9.90 and prior, an improper input validation vulnerability has been identified that may be exploited by processing files lacking user input validation. This may allow an attacker to access information and remotely execute arbitrary code.
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Analysis
by VulDB Data Team • 01/17/2024
The vulnerability identified in Horner Automation Cscape version 9.90 and earlier represents a critical security flaw that directly impacts the integrity and confidentiality of industrial control systems. This improper input validation vulnerability exists within the software's file processing mechanisms, creating a pathway for malicious actors to exploit the system through crafted file inputs. The vulnerability falls under the category of input validation failures that are commonly exploited in industrial automation environments where system integrity is paramount for operational safety and security.
The technical flaw manifests when the Cscape software processes files without adequate validation of user inputs, allowing attackers to inject malicious code through specially crafted file structures. This weakness enables attackers to manipulate the application's behavior by providing inputs that bypass normal validation checks. The vulnerability's exploitation potential is particularly concerning in industrial settings where Cscape is commonly deployed for process control and monitoring applications. The improper input validation creates a direct attack surface that can be leveraged for privilege escalation, data exfiltration, and remote code execution. According to CWE standards, this vulnerability aligns with CWE-20, which specifically addresses improper input validation issues that can lead to various security consequences including code execution and information disclosure.
The operational impact of this vulnerability extends beyond simple code execution capabilities, as it fundamentally compromises the security posture of industrial control systems that rely on Horner Automation's software. Attackers can potentially gain unauthorized access to sensitive operational data, manipulate control processes, and execute arbitrary commands on affected systems. The remote execution capability means that attackers do not need physical access to the systems, making this vulnerability particularly dangerous in network-connected industrial environments. This type of vulnerability can lead to operational disruptions, safety hazards, and potential financial losses for organizations relying on these control systems. The attack vector through file processing suggests that even simple file transfers or system integrations could serve as entry points for exploitation.
Mitigation strategies for this vulnerability should focus on immediate software updates and patches provided by Horner Automation to address the input validation issues. Organizations should implement strict file validation controls and sanitize all inputs before processing to prevent similar vulnerabilities from being exploited. Network segmentation and access controls should be enhanced to limit lateral movement within industrial networks. Security monitoring should be implemented to detect anomalous file processing activities that might indicate exploitation attempts. According to ATT&CK framework, this vulnerability could be categorized under techniques involving command and control communications and privilege escalation, making defensive measures such as network traffic analysis and endpoint detection crucial. Regular security assessments and vulnerability management programs should be implemented to identify and remediate similar issues in industrial control system environments. The vulnerability serves as a reminder of the critical importance of input validation in industrial automation software where system failures can have severe operational and safety implications.