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Vulnerability of Microsoft: executing DLL code

Synthesis of the vulnerability 

An attacker can create a malicious DLL, and then put it in the current directory of a Microsoft application, in order to execute code.
Vulnerable systems: Office, Access, Office Communicator, Excel, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word, SQL Server, Visual Studio.
Severity of this threat: 2/4.
Creation date: 30/06/2017.
Références of this weakness: VIGILANCE-VUL-23108.

Description of the vulnerability 

The Microsoft product uses external shared libraries (DLL).

However, if the working directory contains a malicious DLL, it is automatically loaded.

An attacker can therefore create a malicious DLL, and then put it in the current directory of a Microsoft application, in order to execute code.
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This computer vulnerability impacts software or systems such as Office, Access, Office Communicator, Excel, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word, SQL Server, Visual Studio.

Our Vigil@nce team determined that the severity of this weakness bulletin is medium.

The trust level is of type unique source, with an origin of intranet server.

An attacker with a expert ability can exploit this weakness.

Solutions for this threat 

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