Path Traversal in Rockwell Automation ThinManager

Executive Summary

CVE-2026-11917 is a path traversal vulnerability in Rockwell Automation ThinManager software. The issue occurs because the software's API does not properly restrict file save operations, allowing an authenticated attacker to write arbitrary files to restricted system directories outside the application's intended directory.

This vulnerability affects specific versions of ThinManager, including 13.0.0 to 13.0.7, 13.1.0 to 13.1.5, 13.2.0 to 13.2.4, and 14.0.0 to 14.0.2. It is classified under CWE-22, which refers to improper limitation of a pathname to a restricted directory.

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Detection Guidance

Detecting this vulnerability on your network or system requires checking if your ThinManager software version is within the affected ranges. The affected versions are 13.0.0 to 13.0.7, 13.1.0 to 13.1.5, 13.2.0 to 13.2.4, and 14.0.0 to 14.0.2.

• Verify the installed version of ThinManager software. This can typically be done through the software's administrative interface or by checking the version information in the application settings.
• Review system logs for unusual file write operations or access to restricted directories, which may indicate exploitation attempts. Look for unexpected file creations or modifications outside the intended application directory.
• Use network monitoring tools to detect anomalous API calls or file save operations that may suggest path traversal attempts. Focus on traffic to and from the ThinManager server.

No specific commands are provided in the context, but you can use standard system and network monitoring tools like Wireshark, SIEM solutions, or file integrity monitoring tools to detect suspicious activity.

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Impact Analysis

If exploited, this vulnerability could allow an authenticated attacker to write arbitrary files to critical system directories. This could lead to several potential impacts:

• Unauthorized modification or overwriting of system files, which could disrupt normal operations or cause system instability.
• Installation of malicious software or scripts, potentially leading to further compromise of the system or network.
• Escalation of privileges if the attacker is able to write to directories that grant elevated permissions.
• Data corruption or loss if critical files are altered or deleted.

The vulnerability requires authenticated access, meaning the attacker must have valid credentials to exploit it.

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Compliance Impact

This vulnerability could impact compliance with several common standards and regulations, depending on the context in which ThinManager is used:

• GDPR (General Data Protection Regulation): If the affected system processes or stores personal data of EU citizens, unauthorized file writes could lead to data breaches or unauthorized access to sensitive information, violating GDPR requirements for data protection and integrity.
• HIPAA (Health Insurance Portability and Accountability Act): If ThinManager is used in a healthcare environment to manage systems that handle protected health information (PHI), exploitation of this vulnerability could result in unauthorized access or modification of PHI, leading to non-compliance with HIPAA's security and privacy rules.
• Other industry standards (e.g., ISO 27001, NIST): The vulnerability represents a failure to properly restrict access to system resources, which could violate requirements for access control, system integrity, and risk management outlined in these frameworks.

Organizations using affected versions of ThinManager should apply the provided patches to mitigate the risk of non-compliance and potential regulatory penalties.

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Mitigation Strategies

The primary mitigation step is to upgrade the ThinManager software to a corrected version. The fixed versions are 13.0.8, 13.1.6, 13.2.5, and 14.0.3.

• Apply the available patches or updates provided by Rockwell Automation as soon as possible to eliminate the vulnerability.
• If upgrading is not immediately possible, follow Rockwell Automation's security best practices to reduce the risk of exploitation. This may include restricting access to the ThinManager API and monitoring for suspicious activity.

No known workarounds or mitigations beyond applying the provided fixes are mentioned in the context. Ensure that only trusted and authenticated users have access to the ThinManager software.

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