CVE-2019-11829

Name of the Vulnerable Software and Affected Versions Synology Calendar versions prior to 2.3.1-0617

Description The issue allows remote attackers to execute arbitrary commands via a crafted 'X-Real-IP' header. This is related to an OS command injection vulnerability in the drivers syno import user.php file.

Recommendations For versions prior to 2.3.1-0617, update to version 2.3.1-0617 or later to resolve the issue. As a temporary workaround, consider restricting access to the 'X-Real-IP' header to minimize the risk of exploitation.