CVE-2021-22720: Schneider Electric C-Bus Toolkit PROJECT RESTORE Directory Traversal Information Disclosure Vulnerability
A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists in C-Bus Toolkit (V1.15.7 and prior) that could allow a remote code execution when restoring a project.
Other sources
This vulnerability allows remote attackers to disclose sensitive information 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 disclose information in the context of SYSTEM.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-22720?
CVE-2021-22720 is a vulnerability in Schneider Electric C-Bus Toolkit that allows remote attackers to disclose sensitive information.
How can this vulnerability be exploited?
This vulnerability can be exploited by bypassing the existing authentication mechanism to remotely disclose sensitive information.
What is the severity of CVE-2021-22720?
CVE-2021-22720 has a severity rating of 7.2 (high).
Which software versions are affected by CVE-2021-22720?
Schneider Electric C-Bus Toolkit versions up to and including 1.15.7 are affected by CVE-2021-22720.
How can I fix CVE-2021-22720?
To mitigate this vulnerability, update Schneider Electric C-Bus Toolkit to a version that is not affected by CVE-2021-22720.