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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0113 -- [Win][UNIX/Linux] IBM Informix Dynamic Server Multiple Vulnerabilities 5 February 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Informix Dynamic Server Publisher: iDEFENSE Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact: Root Compromise Administrator Compromise Create Arbitrary Files Access: Existing Account CVE Names: CVE-2008-0369 CVE-2008-0368 Original Bulletin: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=650 http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=651 Comment: This ESB contains two (2) seperate iDefence advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- iDefense Security Advisory 01.31.08 http://labs.idefense.com/intelligence/vulnerabilities/ Jan 31, 2008 I. BACKGROUND IBM Corp.'s Informix Dynamic Server is an online transaction processing data server. For more information, visit the product's homepage at the following URL. http://www-306.ibm.com/software/data/informix/ids/ II. DESCRIPTION Local exploitation of a file creation vulnerability in IBM Corp.'s Informix Dynamic Server allows attackers to elevate privileges to root. When the SQLIDEBUG environment variable is set, several set-uid binaries will log debugging information to the specified file. III. ANALYSIS Exploitation allows local attackers to gain root privileges. After creating the file, the file's ownership is changed to match the user and group of the executing user. As such, an attacker could create files that they own anywhere on the system. IV. DETECTION iDefense confirmed the existence of this vulnerability in IBM Corp.'s Informix Dynamic Server version 10.00 UC6TL installed on a Linux system. Other versions are also suspected as vulnerable. Versions for other supported Unix systems should also be considered vulnerable. V. WORKAROUND Removing the set-uid bit from all programs included with Informix will prevent exploitation. However, this could disable some functionality for non-root users. VI. VENDOR RESPONSE IBM Corp. has addressed this vulnerability with the release of version 10.00.xC8 of Informix Dynamic Server. For more information, visit the following URL. http://www-1.ibm.com/support/docview.wss?uid=swg27011556 VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2008-0369 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org/), which standardizes names for security problems. VIII. DISCLOSURE TIMELINE 09/01/2007 Initial vendor notification 09/13/2007 Initial vendor response 01/31/2008 Coordinated public disclosure IX. CREDIT The discoverer of this vulnerability wishes to remain anonymous. Get paid for vulnerability research http://labs.idefense.com/methodology/vulnerability/vcp.php Free tools, research and upcoming events http://labs.idefense.com/ X. LEGAL NOTICES Copyright © 2008 iDefense, Inc. Permission is granted for the redistribution of this alert electronically. It may not be edited in any way without the express written consent of iDefense. If you wish to reprint the whole or any part of this alert in any other medium other than electronically, please e-mail customerservice@idefense.com for permission. Disclaimer: The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information. iDefense Security Advisory 01.31.08 http://labs.idefense.com/intelligence/vulnerabilities/ Jan 31, 2008 I. BACKGROUND IBM Corp.'s Informix Dynamic Server is an online transaction processing data server. For more information, visit the product's homepage at the following URL. http://www-306.ibm.com/software/data/informix/ids/ II. DESCRIPTION Local exploitation of a file creation vulnerability in IBM Corp.'s Informix Dynamic Server allows attackers to elevate privileges to root. The set-uid root "onedcu" command requires six parameters to be specified when it is executed. The second parameter is a "Trace" file that this program will open and write to with elevated privileges. III. ANALYSIS Exploitation allows local attackers to gain root privileges. IV. DETECTION iDefense confirmed the existence of this vulnerability in IBM Corp.'s Informix Dynamic Server version 10.00 UC6TL installed on a Linux system. Other versions are also suspected as vulnerable. Versions for other supported Unix systems should also be considered vulnerable. V. WORKAROUND Removing the set-uid bit from the "onedcu" program included with Informix will prevent exploitation. However, this could disable some functionality for non-root users. VI. VENDOR RESPONSE IBM Corp. has addressed this vulnerability with the release of version 10.00.xC8 of Informix Dynamic Server. For more information, visit the following URL. http://www-1.ibm.com/support/docview.wss?uid=swg27011556 VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2008-0368 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org/), which standardizes names for security problems. VIII. DISCLOSURE TIMELINE 09/01/2007 Initial vendor notification 09/13/2007 Initial vendor response 01/31/2008 Coordinated public disclosure IX. CREDIT The discoverer of this vulnerability wishes to remain anonymous. Get paid for vulnerability research http://labs.idefense.com/methodology/vulnerability/vcp.php Free tools, research and upcoming events http://labs.idefense.com/ X. LEGAL NOTICES Copyright © 2008 iDefense, Inc. Permission is granted for the redistribution of this alert electronically. It may not be edited in any way without the express written consent of iDefense. If you wish to reprint the whole or any part of this alert in any other medium other than electronically, please e-mail customerservice@idefense.com for permission. Disclaimer: The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information. - --------------------------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. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. 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 iQCVAwUBR6eZmCh9+71yA2DNAQJIxwP9EuUpXf/sXDvp6VKtQh1oa4Gt9AXSpIIq hPv40VSq7pOeBS69rMqCmxgsnpB+4U9hMcQ9ddpDnibJRJMcT58hy/EqVN7tsTnm /gUMYBi+v2kFVfwiwpc8zv3Jo6nWAepDCLkHWNldMScLFJwBw30M35C/y6JxY68+ 9aIjWYYsq4U= =vQwf -----END PGP SIGNATURE-----