Critical · published November 17, 2023
🚨 A misconfigured Mkdir() function poses a massive risk! Concrete CMS versions before 8.5.13 and 9.x before 9.2.2 allow directories with universal access (0777) to be created by default. 🔥 Think of it like a restaurant that leaves the back door wide open, allowing anyone to waltz in and grab anything from the pantry. That’s exactly what these overly permissive directory settings do—inviting all sorts of trouble! An attacker could stroll in and create malicious files or even overwrite critical data, wreaking havoc on your system. This is absolutely devastating, as it opens the door to unauthorized access and data manipulation—yikes!
Think of it like a restaurant that leaves the back door wide open, allowing anyone to waltz in and grab anything from the pantry. That’s exactly what these overly permissive directory settings do—inviting all sorts of trouble! This vulnerability arises from the Mkdir() function in Concrete CMS that creates directories with overly permissive default settings (0777). If not specified, the permission level grants universal access, allowing anyone to read, write, and execute files within those directories.
An attacker could stroll in and create malicious files or even overwrite critical data, wreaking havoc on your system. This is absolutely devastating, as it opens the door to unauthorized access and data manipulation—yikes! Upgrade your Concrete CMS to version 8.5.13 or 9.2.2 immediately to patch this critical vulnerability. Additionally, review your directory permissions to ensure they are set to a safe level (0755 or lower) to enhance security. You've got this! Follow these steps, and you'll reinforce your defenses in no time. 🛡️