In recent years we have seen how Microsoft has put much more emphasis on correcting the security flaws of its operating system, we constantly receive security patches that are responsible for keeping our computer free of errors or discovered vulnerabilities, hence it is important to keep updated our PC.
As reported by Windows Internals , with the latest security patch released by Microsoft, the Redmond company has solved a bug that had been operating for more than two decades, and despite the fact that it was not an easy bug to exploit, nor was it scale was considered critical, so it is striking that so much time has passed for a solution to be launched.
The demon printer
The name that received this vulnerability was PrintDemon, which can be translated as the demon printer, so this failure is totally related to Windows Print Spooler, the function in charge of managing the print queue on the computer.
What was PrintDemon doing? According to the source, this vulnerability allowed an attacker to gain system privileges, yes all through the printer. To exploit it, there needed to be a print queue (which is why it was not so easy to exploit it), so through the failure the attacker could finally use Windows Print Spooler to arbitrarily write data to the system and be able to execute actions like installing programs, deleting data or even user accounts.
The “advantage” is that this failure did not allow access to Windows remotely, but local permissions must be obtained through a failure in order to obtain more and more privileges within Windows and thus have control over more aspects of the system.
Which versions of Windows are out of danger?
Because the error is present in many versions of Windows, we must say that this will remain the same on all computers that do not have Windows 10 , Windows 8, and Windows 7 , although in the case of the latter operating system it only applies to those users who have paid for extended support.
If you still don’t update your computer, you should do it as soon as possible, because the security patch is already available along with other improvements from the May update.