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E-Press ONE Office Suite  <= Insecure DLL Hijacking Vulnerability
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1. OVERVIEW

E-Press ONE Office Suite application is vulnerable to Insecure DLL Hijacking Vulnerability. Similar terms that describe this vulnerability have been come up with Remote Binary Planting, and Insecure DLL Loading/Injection/Hijacking/Preloading.


2. PRODUCT DESCRIPTION

E-Press ONE Office Suite is a multi-title suite of applications that includes everything you need to get you up and running. From standard office applications such as spreadsheet and presentation software, all fully compatible with Microsoft, to digital media and web creation, PC Defender Antivirus(a port of ClamAV),  ONE is the single most comprehensive suite of products available today for your productivity needs.


3. VULNERABILITY DESCRIPTION

The E-Press ONE Office Suite  applications pass an insufficiently qualified path in loading their external libraries when a user opens its associated file with extensions. 
  	
 E-Press ONE Office Author
	- affected dlls: java_msci.dll, msci_java.dll
	- affected extention: psw
 
 E-Press ONE Office E-NoteTakeer 
	- affected dlls: mfc71enu.dll, mfc71loc.dll
	- affected extention: txt

 E-Press ONE Office E-Zip
	- affected dll: mfc71enu.dll, mfc71loc.dll
	- affected extentions: rar, tar


4. VERSIONS AFFECTED

N/A (Application's last modified date was found to be March, 2006)


5. PROOF-OF-CONCEPT/EXPLOIT

http://core.yehg.net/lab/pr0js/advisories/dll_hijacking/e-press-one_office-suite/poc/movie/e-press-one_office-suite-dll-hijacking.mp4
http://core.yehg.net/lab/pr0js/advisories/dll_hijacking/e-press-one_office-suite/poc/e-press-one_office_suite-poc-dll.zip

Tested Platform: Windows XP Service Pack 3 (Fresh Windows)


6. IMPACT

Attackers can trigger a successful exploit against a victim user in a number of ways such as placing a malicious external 
library file made as hidden attribute and a seemingly interesting file in network shares, usb drives, file sharing networks, 
social networks, ..etc	


7. SOLUTION

Fixed version from the vendor has not been released yet.
However, it is suggested that the following workarounds be deployed by users to protect increasing mass exploitation of this 
vulnerability class:
- Disable loading of libraries from WebDAV and remote network shares
- Disable the WebClient service 
Please see workaround solution links in References section.


8. VENDOR

E-PRESS Corp. 
http://www.e-press.com


9. CREDIT

This vulnerability was discovered by Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar. 


10. DISCLOSURE TIME-LINE

09-11-2010: notified vendor
09-13-2010: vulnerability disclosed


11. REFERENCES

Original Advisory URL: http://core.yehg.net/lab/pr0js/advisories/dll_hijacking/[e-press-one_office]_insecure_dll_hijacking
Workaround Solution: http://support.microsoft.com/kb/2264107
Workaround Solution: https://www.microsoft.com/technet/security/advisory/2269637.mspx#EGF
Developer Solution: http://msdn.microsoft.com/en-us/library/ff919712%28v=VS.85%29.aspx
Unofficial DLL Hijacking List: http://www.corelan.be:8800/index.php/2010/08/25/dll-hijacking-kb-2269637-the-unofficial-list/
Testing for DLL Hijacking: http://core.yehg.net/lab/pr0js/view.php/when_testing_for_dll_hijacking.txt

#yehg [09-13-2010]