Let's try to understand what type of vulnerability we are talking hungary phone number about. Privilege escalation in fact allows any visitor of a website to enter the structure of the site , with the appropriate malicious activities obviously, and take the role of administrator.
In this way it is then possible to do practically anything within the site and transform it for example into a trap or exfiltrate all the sensitive data that the databases contain. The secure version of the LiteSpeed Cache plugin is 6.4. How is it possible, however, that an unauthorized user can enter without problems within a site just because it has a plugin for managing optimization?
It all starts from one of the functions that the plugin is built with. LiteSpeed Cache has a crawler function that helps reduce loading times by building the cache of pages before a real user visits them.
To create this advanced cache version, however, the crawler essentially creates a fictitious user to which it adds an ID. This fictitious user, which in itself is very useful, has a problem inside: this simulation is in fact protected by a security system that is not bombproof.
The security hash uses values that can be easily identified. If a malicious user manages to interfere with the system that produces the security hash value, for example through a Brute Force attack, he can enter using the IDs that the crawler creates for its simulation activities.
A peculiarity that emerged in the simulations made by the PatchStack team is that the vulnerability does not work in a Windows environment . If the WordPress site is built starting from Windows, in fact, a step is missing that is solved differently in this operating system.
For once, you might say, Windows is the safest environment on which to build your WordPress site. But that's little consolation, because the prospects of what can happen are truly alarming: the moment you enter the site, you have, in effect, a free hand.
All the details about what can happen are in the post on the official Patch Stack blog . A bit technical reading, but worth doing.