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             AUSCERT External Security Bulletin Redistribution

                          ESB-2007.0650 -- [Win]
         Oracle JInitiator ActiveX control stack buffer overflows
                             19 September 2007


        AusCERT Security Bulletin Summary

Product:              Oracle JInitiator ActiveX control and prior
Publisher:            US-CERT
Operating System:     Windows
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2007-4467

Original Bulletin:    

Comment: When upgrading or deinstalling, note that multiple vulnerable
         JInitiator versions may be present on the same client system.
         Clients that have previously accessed Oracle Forms applications such
         as Oracle e-Business Suite, Oracle Clinical, Oracle Retail, Sungard
         Banner and i-flex FLEXCUBE may have the vulnerable control installed.

Revision History:  September 19 2007: All versions through are vulnerable; 
                                      Mitigation updated to include all affected CLSIDs; 
                                      Added comment and Integrigy reference
                   August    29 2007: Initial Release

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US-CERT Vulnerability Note VU#474433
Oracle JInitiator ActiveX control stack buffer overflows


	The Oracle JInitiator ActiveX control contains multiple stack buffer
	overflows, which could allow a remote, unauthenticated attacker to
	execute arbitrary code on a vulnerable system.

I. Description

	Oracle JInitiator allows users to run Oracle Developer Server
	applications within a web browser. Oracle JInitiator includes an
	ActiveX control called beans.ocx. The Oracle JInitiator ActiveX control
	is vulnerable to multiple stack buffer overflows in initialization

	This vulnerability appears to be present in versions 1.1.8.x of the
	Oracle JInitiator software. In our testing, the 1.3.1.x versions of
	JInitiator do not contain these buffer overflows. However, installing
	a later version of the software will not remove the vulnerable version
	of the control.

II. Impact

	A remote, unauthenticated attacker may be able to execute arbitrary
	code on a vulnerable system with privileges of the user.

III. Solution

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

	Disable the Oracle JInitiator ActiveX controls in Internet Explorer

	The vulnerable ActiveX controls can be disabled in Internet Explorer
	by setting the kill bit for the following CLSIDs:


	More information about how to set the kill bit is available in Microsoft
	Support Document 240797. http://support.microsoft.com/kb/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\{A2001DD0-C7BD-11D4-A3E1-00C04FA32518}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{FF348B6E-FD21-11D4-A3F0-00C04FA32518}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{689FF870-2AC0-11D5-B634-00C04FAEDB18}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{86ECB6A0-400A-11D5-B638-00C04FAEDB18}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{ED54A7B0-6C1C-11D5-B63D-00C04FAEDB18}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{0A454840-7232-11D5-B63D-00C04FAEDB18}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{9B935470-AD4A-11D5-B63E-00C04FAEDB18}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{1D2A8890-3083-11D6-B649-00C04FAEDB18}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{5E2A3510-4371-11D6-B64C-00C04FAEDB18}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{E2258010-B53C-11D6-B64D-00C04FAEDB18}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{B5859259-C40B-4B2A-AF9D-3BF0F634B1D5}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{332BD5A0-8000-11D7-B657-00C04FAEDB18}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{B13D8B3E-04A8-406F-BD35-07530D4A62DC}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{E79BC654-8FC6-4BB9-BFB8-8860779AE213}]
	      "Compatibility Flags"=dword:00000400

	      [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{7C2C94F0-7991-42B4-8D5F-4CB15B490657}]
	      "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.

Systems Affected

	Vendor              Status      Date Updated
	Oracle Corporation  Vulnerable  27-Aug-2007




	This vulnerability was reported by Will Dormann of the CERT/CC.
	This document was written by Will Dormann. Additional information was
	provided by Stephen Kost of Integrigy.

Other Information

	Date Public	08/28/2007
	Date First Published	08/28/2007 02:28:22 PM
	Date Last Updated	09/14/2007
	CERT Advisory	 
	CVE Name	CVE-2007-4467
	Metric	5.89
	Document Revision	15

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