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An elevation of privilege exists in Windows COM


Description

An elevation of privilege exists in Windows COM Aggregate Marshaler. An attacker who successfully exploited the vulnerability could run arbitrary code with elevated privileges.To exploit the vulnerability, an attacker could run a specially crafted application that could exploit the vulnerability. This vulnerability by itself does not allow arbitrary code to be run.  However, this vulnerability could be used in conjunction with one or more vulnerabilities (e.g. a remote code execution vulnerability and another elevation of privilege) that could take advantage of the elevated privileges when running.The update addresses the vulnerability by correcting how Windows COM Marshaler processes interface requests.

Proof of Concept:


Now download “CVE-2017-0213_x64” from here and unzip in your PC. Go to the folder and you can find the .exe file, double click on it to run it. 

Video POC :


Reference :

Microsoft: https://portal.msrc.microsoft.com/en-US/security-guidance
Rapid7 : https://www.rapid7.com/db/vulnerabilities/msft-cve-2017-0213
Github: https://github.com/WindowsExploits/Exploits/tree/master/CVE-2017-0213

Thank you 
Dhiraj Mishra

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