Date: 19 September 2007
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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 1.1.8.25 and prior
Publisher: US-CERT
Operating System: Windows
Impact: Execute Arbitrary Code/Commands
Access: Remote/Unauthenticated
CVE Names: CVE-2007-4467
Original Bulletin:
http://www.kb.cert.org/vuls/id/474433
http://www.integrigy.com/security-resources/analysis/integrigy-oracle-jinitiator-vulnerability.pdf/view
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 1.1.8.3 through 1.1.8.25 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
Overview
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
parameters.
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:
{A2001DD0-C7BD-11D4-A3E1-00C04FA32518}
{FF348B6E-FD21-11D4-A3F0-00C04FA32518}
{689FF870-2AC0-11D5-B634-00C04FAEDB18}
{86ECB6A0-400A-11D5-B638-00C04FAEDB18}
{ED54A7B0-6C1C-11D5-B63D-00C04FAEDB18}
{0A454840-7232-11D5-B63D-00C04FAEDB18}
{9B935470-AD4A-11D5-B63E-00C04FAEDB18}
{1D2A8890-3083-11D6-B649-00C04FAEDB18}
{5E2A3510-4371-11D6-B64C-00C04FAEDB18}
{E2258010-B53C-11D6-B64D-00C04FAEDB18}
{B5859259-C40B-4B2A-AF9D-3BF0F634B1D5}
{332BD5A0-8000-11D7-B657-00C04FAEDB18}
{B13D8B3E-04A8-406F-BD35-07530D4A62DC}
{E79BC654-8FC6-4BB9-BFB8-8860779AE213}
{7C2C94F0-7991-42B4-8D5F-4CB15B490657}
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.
http://www.cert.org/tech_tips/securing_browser/#Internet_Explorer
Systems Affected
Vendor Status Date Updated
Oracle Corporation Vulnerable 27-Aug-2007
References
http://www.cert.org/tech_tips/securing_browser/#Internet_Explorer
http://www.oracle.com/technology/software/products/developer/files/11816/readme.htm
http://www.oracle.com/technology/software/products/developer/htdocs/jinit.htm
http://www.integrigy.com/security-resources/analysis/integrigy-oracle-jinitiator-vulnerability.pdf/view
http://www.securityfocus.com/bid/25473
http://secunia.com/advisories/26644/
Credit
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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