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             AUSCERT External Security Bulletin Redistribution

                               ESB-2010.0700
          Oracle Siebel Option Pack for IE ActiveX control memory
                       initialization vulnerability
                               9 August 2010

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Oracle Siebel Option Pack for IE
Publisher:         US-CERT
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Mitigation
CVE Names:         CVE-2009-3737  

Original Bulletin: 
   http://www.kb.cert.org/vuls/id/174089

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Vulnerability Note VU#174089

Oracle Siebel Option Pack for IE ActiveX control memory initialization 
vulnerability

Overview

The Oracle Siebel Option Pack for IE ActiveX control fails to properly 
initialize memory, which may allow a remote, unauthenticated attacker to 
execute arbitrary code on a vulnerable system.

I. Description

Siebel Option Pack for IE is an ActiveX control that is provided by Oracle 
Siebel Customer Relationship Management (CRM) software. The Siebel Option 
Pack for IE ActiveX control is provided by a number of different DLLs with 
file names beginning with ieop_aom. This ActiveX control fails to properly 
initialize memory that is used by the NewBusObj() method.

II. Impact

By convincing a user to view a specially crafted HTML document (e.g., a web 
page or an HTML email message or attachment), an attacker may be able to 
execute arbitrary code with the privileges of the user.

III. Solution

We are currently unaware of a practical solution to this problem. Please 
consider the following workarounds:

Disable the Siebel Option Pack for IE ActiveX control in Internet Explorer

The vulnerable ActiveX controls can be disabled in Internet Explorer by setting 
the kill bit for the following CLSIDs. Note that this list may not be complete. 
The vulnerable control may be available as other CLSIDs.

      {07070bfd-c501-4899-934d-0b96a9f70795}
      {26bac093-997c-4084-bad6-c35f5d67ea99}
      {631F0C94-C02F-40AC-A31B-DDC39731FC81}
      {68cdb19a-6305-4589-8c35-41e3502cd451}
      {81a81dd2-a261-442a-b9b1-df10a2542020}
      {45874228-a445-40dc-962b-ec15559b1741}

More information about how to set the kill bit is available in Microsoft 
Support Document 240797. Alternatively, the following text can be saved as a 
.REG file and imported to set the kill bit for this control:

      Windows Registry Editor Version 5.00

      [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{07070bfd-c501-4899-934d-0b96a9f70795}]
      "Compatibility Flags"=dword:00000400
      [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{07070bfd-c501-4899-934d-0b96a9f70795}]
      "Compatibility Flags"=dword:00000400

      [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{26bac093-997c-4084-bad6-c35f5d67ea99}]
      "Compatibility Flags"=dword:00000400
      [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{26bac093-997c-4084-bad6-c35f5d67ea99}]
      "Compatibility Flags"=dword:00000400

      [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{45874228-a445-40dc-962b-ec15559b1741}]
      "Compatibility Flags"=dword:00000400
      [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{45874228-a445-40dc-962b-ec15559b1741}]
      "Compatibility Flags"=dword:00000400

      [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{631F0C94-C02F-40AC-A31B-DDC39731FC81}]
      "Compatibility Flags"=dword:00000400
      [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{631F0C94-C02F-40AC-A31B-DDC39731FC81}]
      "Compatibility Flags"=dword:00000400

      [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{68cdb19a-6305-4589-8c35-41e3502cd451}]
      "Compatibility Flags"=dword:00000400
      [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{68cdb19a-6305-4589-8c35-41e3502cd451}]
      "Compatibility Flags"=dword:00000400

      [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{81a81dd2-a261-442a-b9b1-df10a2542020}]
      "Compatibility Flags"=dword:00000400
      [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{81a81dd2-a261-442a-b9b1-df10a2542020}]
      "Compatibility Flags"=dword:00000400

Disable ActiveX

Disabling ActiveX controls in the Internet Zone (or any zone used by an 
attacker) appears to prevent exploitation of this and other ActiveX 
vulnerabilities. Instructions for disabling ActiveX in the Internet Zone can
 be found in the Securing Your Web Browser document. 

Vendor Information

Vendor			Status		Date Notified	Date Updated
Oracle Corporation	Affected	2006-10-20	2010-08-05


References

http://www.cert.org/tech_tips/securing_browser/
http://secunia.com/advisories/40804/
http://support.microsoft.com/kb/240797

Credit

This vulnerability was reported by Will Dormann of the CERT/CC

This document was written by Will Dormann.

Other Information

Date Public:			2010-08-05
Date First Published:		2010-08-05
Date Last Updated:		2010-08-06
CERT Advisory:	 
CVE-ID(s):			CVE-2009-3737
NVD-ID(s):			CVE-2009-3737
US-CERT Technical Alerts:	 
Metric:				5.70
Document Revision:		6

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