Microsoft has urged Windows users to update their systems with the latest security patch immediately for the PrintNightmare. The devices that host the print spooler service should be updated first. The Redmond-based software giant released the security update after researchers found a serious vulnerability called as PrintNightmare.
The malware is designed in such a way that it could allow multiple users to access the printer. The researchers at Sangfor revealed that they had discovered vulnerabilities in the Windows Print Spooler service and also published a proof-of-concept online. It was later deleted after the team realized the mistake.
Microsoft released an Out-of-Band security update for PrintNightmare, which includes all previous security fixes. The update completely addresses the public vulnerability and also includes a new feature, which enables customers to implement stronger protections.
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According to company sources, the product team is specifically interested to provide required security updates for all computer system so that they can be protected immediately before harmful activity. The print operators security group could install both signed and unsigned printer drivers on a printer server before initiating the patch update.
The delegated admin groups like printer operators could be able to install signed printer drivers and administrator credentials after the installation of CVE-2021-34527 update. The admin credentials will be required to install unsigned printer drivers on a printer server. You should install July 2021 Out of Band update and configure the RestrictDriverInstallationToAdministrators registry value, which prevents non-administrators from installing printer drivers on a printer server.
Microsoft revealed that the PrintNightmare security updates for Windows Server 2012, Windows Server 2016, and Windows 10 version 1607 will be delayed for a short period. However, you can expect the rollout soon. Staying up to date and getting the right software can get you on the right track, for instance experience less data wrangling with DMI.
