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Another Unpatched Windows Printer Spooler Bug Discovered

Unpatched Windows Printer Spooler
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20th July 2021, Kathmandu

After days, Microsoft was notified of an unpatched security vulnerability in the Windows Print Spooler service, yet another 0-day flaw has been identified in the same component.

Researcher Benjamin Delpy disclosed the exploit for the vulnerability.

https://twitter.com/i/status/1416079316673339392

This bug allows an attacker to execute arbitrary code with SYSTEM privileges. There is no solution to the problem yet; CERT/CC has recommended configuring PackagePointAndPrintServerList to prevent the installation of the printer from attacker-controlled servers.

PrintNightmare issue had become public last month by accident, which has led to the identification of several similar vulnerabilities.

Further clarification is yet to come from Microsoft.


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