8.8
Advisory Published

ZDI-21-447: Schneider Electric C-Bus Toolkit ACCESS SAVE Directory Traversal Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Schneider Electric C-Bus Toolkit. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the processing of commands sent to the C-Gate 2 Service. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM.

Affected SoftwareAffected VersionHow to fix
Schneider Electric C-Bus Toolkit

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Frequently Asked Questions

  • What is the severity of ZDI-21-447?

    ZDI-21-447 is classified as a critical severity vulnerability due to the potential for remote code execution.

  • How do I fix ZDI-21-447?

    To remediate ZDI-21-447, users should apply the latest patches provided by Schneider Electric for the C-Bus Toolkit.

  • Who is affected by ZDI-21-447?

    ZDI-21-447 affects installations of Schneider Electric C-Bus Toolkit that allow remote code execution.

  • Can ZDI-21-447 be exploited without authentication?

    Exploitation of ZDI-21-447 requires authentication, but the vulnerability allows for bypassing the existing authentication mechanisms.

  • What are the consequences of ZDI-21-447 being exploited?

    Successful exploitation of ZDI-21-447 could allow remote attackers to execute arbitrary code on affected systems.

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