Microsoft PowerPoint Viewer 12.0.6600.1000 DLL Hijacking

`[+] Credits: hyp3rlinx  
  
[+] Website: hyp3rlinx.altervista.org  
  
[+] Source:  
http://hyp3rlinx.altervista.org/advisories/MICROSOFT-PPT-VIEWER-CODE-EXEC.txt  
  
  
  
Vendor:  
===================  
www.microsoft.com  
  
  
  
Product:  
============================  
Microsoft PowerPoint Viewer  
version: 12.0.6600.1000  
  
  
  
Vulnerability Type:  
====================================  
DLL Hijack Arbitrary Code Execution  
  
  
  
Vulnerability Details:  
=====================  
  
Microsoft PowerPoint Viewer 'POWERPNT.EXE' will execute arbitrary code if  
an attacker can place a DLL named "api-ms-win-appmodel-runtime-l1-1-0.dll"  
in users  
downloads directory. This exploit does NOT rely on any embedded OLE objects  
or CLSID registered COM objects in the document to execute.  
  
  
1) create malicious DLL named "api-ms-win-appmodel-runtime-l1-1-0.dll"  
  
2) place DLL in users downloads directory via download driveby etc...  
  
3) open an existing .PPT document from the downloads directory e.g.  
"C:\Users\Downloads\somefile.ppt"  
  
  
then BOOOOOM ...  
  
  
Tested on: Windows 7 SP1 x64  
  
  
  
Disclosure Timeline:  
=================================================================  
Vendor Notification: February 23, 2016  
vendor replies DLL side loading issue already publicly known.  
  
a google search returned following results:  
  
1) examples using embedded OLE objects and MS Word etc  
2) old posts  
3) examples not referencing "api-ms-win-appmodel-runtime-l1-1-0.dll" DLL  
  
February 29, 2016 : Public Disclosure.  
  
  
  
Severity Level:  
================  
High  
  
  
  
Description:  
============================================================  
  
vulnerable DLL: "api-ms-win-appmodel-runtime-l1-1-0.dll"  
Vulnerable Product: Microsoft PowerPoint Viewer 'POWERPNT.EXE'  
  
============================================================  
  
[+] Disclaimer  
Permission is hereby granted for the redistribution of this advisory,  
provided that it is not altered except by reformatting it, and that due  
credit is given. Permission is explicitly given for insertion in  
vulnerability databases and similar, provided that due credit is given to  
the author.  
The author is not responsible for any misuse of the information contained  
herein and prohibits any malicious use of all security related information  
or exploits by the author or elsewhere.  
  
by hyp3rlinx  
`