![]() ![]() lnk files have already been used in exploitation. Researchers noted that Office, Outlook, and. This technique can potentially be used with any application supporting MS Protocols. The flaw abuses a Microsoft Office remote template feature to retrieve a HyperText Markup Language (HTML) file, which then uses MSDT to execute PowerShell code. Threat actors have been leveraging the MS- MSDT scheme to remotely execute arbitrary code on systems running various versions of Windows. According to Microsoft’s documentation, MSDT “invokes a troubleshooting pack at the command line or as part of an automated script and enables additional options without user input.” MSDT is a utility used to troubleshoot and collect diagnostic data for analysis by Microsoft Support. Prior to this, several researchers published proof-of-concept code for remote execution, referring to the issue as “Follina”. ![]() On, Microsoft released an advisory for a Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution (RCE) vulnerability, tracked as CVE-2022-30190. ![]() Microsoft’s advisory provides some mitigation measures to prevent the exploitation of vulnerable systems. These issues affect all client and server versions of the Windows operating system, and there is no fix available at the time of reporting. As of, researchers have been publishing details on how Windows protocol handlers can be abused for malicious purposes by referencing specially crafted Uniform Resource Locators (URLs). ![]()
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