Windows Under Attack, Microsoft Says, All Users Should Update Now

Microsoft has released security updates to address a high severity Windows zero-day vulnerability with publicly available exploit code and abused in attacks.

It is due to a path traversal weakness in the Windows Support Diagnostic Tool MSDT that attackers can exploit to gain remote code execution on compromised systems.

They can do that by adding maliciously crafted executables to the Windows Startup when the target opens a maliciously crafted. The planted executables would then automatically be executed the next time the victims restart their Windows device to perform various tasks such as downloading additional malware payloads.

DogWalk was publicly disclosed by security researcher Imre Rad more than two years ago, in January , after Microsoft replied to his report saying it won’t provide a fix because this isn’t a security issue. However, the Microsoft Support Diagnostics Tool bug was recently re-discovered and brought back to public attention by security researcher j00sean. While unauthenticated attackers can exploit the vulnerability in low-complexity attacks, successful exploitation does require user interaction tricking the target into opening malicious email attachments or clicking a link to download and run a malicious file.

According to Microsoft, DogWalk affects all Windows versions under support, including the latest client and server releases, Windows 11 and Windows Server Last month, Microsoft was forced to publish an official security advisory regarding another Windows MSDT zero-day known as Follina after rejecting an initial report and tagging it as not a “security-related issue.

Today, the company also released security updates to address a publicly disclosed zero-day tracked as ‘ CVE – Microsoft Exchange Information Disclosure Vulnerability,’ allowing attackers to read targeted email messages. In all, Microsoft patched vulnerabilities as part of the August Patch Tuesday , including 17 critical ones allowing for remote code execution and privilege escalation.

CISA orders agencies to patch new Windows zero-day used in attacks. Google patches new Chrome zero-day flaw exploited in attacks. Hackers steal crypto from Bitcoin ATMs by exploiting zero-day bug.

Microsoft Sysmon can now block malicious EXEs from being created. Not a member yet? Register Now. To receive periodic updates and news from BleepingComputer , please use the form below. Read our posting guidelinese to learn what content is prohibited. August 9, PM 0. Sergiu Gatlan Sergiu Gatlan is a reporter who covered cybersecurity, technology, Apple, Google, and a few other topics at Softpedia for more than a decade. Email or Twitter DMs for tips. Previous Article Next Article. You may also like:.

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Microsoft patches Windows DogWalk zero-day exploited in attacks

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1 Zero-Day Vulnerability Details As per Microsoft, An attacker who successfully exploited this vulnerability could gain SYSTEM privileges. The. A new Windows zero-day vulnerability has been discovered that allows attackers to exploit the Microsoft operating system and gain. Fixed as part of the August Patch Tuesday, this security flaw is now tracked CVE and has been jokingly named DogWalk. It is due.