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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== 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 - --------------------------BEGIN INCLUDED TEXT-------------------- 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 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBRvDHvih9+71yA2DNAQKf+gP/VqpJr4mo4vTtEkkrEIu3jICO9axL0Hvx OQO6Ij8E2Z+WYeV2gpa3PouJAgemBL/5FrflV3Oz2WYE3orKVxtRc9/bJ3qlvNXj oPvVm5KHwEp4RvcYisxPz7t+uLItabO2HyY0wBbUYeNXjJUjGfhBzh89HrEtP4p2 8yHjmZHByD4= =xcRF -----END PGP SIGNATURE-----