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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2007.0214 -- [Win][UNIX/Linux] IBM Tivoli Provisioning Manager for OS Deployment Multiple Vulnerabilities 7 June 2007 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Tivoli Provisioning Manager for OS Deployment Publisher: iDefense Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact: Administrator Compromise Root Compromise Access: Remote/Unauthenticated CVE Names: CVE-2007-1868 Original Bulletin: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=498 http://www-1.ibm.com/support/docview.wss?uid=swg24015347 Comment: Exploit code for these vulnerabilities has been publicly posted. Revision History: June 7 2007: Public exploit code, added CVE reference April 3 2007: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- IBM Tivoli Provisioning Manager for OS Deployment Multiple Vulnerabilities iDefense Security Advisory 03.31.07 http://labs.idefense.com/intelligence/vulnerabilities/ Mar 31, 2007 I. BACKGROUND IBM Corp.'s Tivoli Provisioning Manager for OS Deployment is a network boot server that facilitates central management of networked workstations. It implements Pre-boot Execution Environment (PXE) as well as a Web-based administration service. More information can be found at the following URL. http://www-306.ibm.com/software/tivoli/products/prov-mgr-os-deploy/ II. DESCRIPTION Remote exploitation of a multiple vulnerabilities within IBM Corp.'s Tivoli Provisioning Manager for OS Deployment allows attackers to crash the service or potentially execute arbitrary code with SYSTEM privileges. These vulnerabilities specifically exist in the handling of multi part/form-data HTTP POST requests. Malformed requests can cause invalid memory accesses leading to denial of service, or in some cases heap corruption. III. ANALYSIS Exploitation allows an attacker to crash the service or potentially execute arbitrary code with SYSTEM privileges. No authentication is required to access the vulnerable code. The attacker need only be able to send a specially crafted request to the HTTP (8080) or HTTP-SSL (443) port of the management service. It should be noted that this service can be run with reduced privileges. iDefense recommends running this service with the least amount of privileges possible. IV. DETECTION iDefense has confirmed the existence of these vulnerabilities within version 5.1.0.116 of Tivoli Provisioning Manager for OS Deployment. Older versions are suspected to be vulnerable as well. V. WORKAROUND Employing firewalls to limit access to the affected service will mitigate exposure to these vulnerabilities. VI. VENDOR RESPONSE IBM Corp. Tivoli has addressed these vulnerabilities within Tivoli Provisioning Manager for OS Deployment 5.1 Fix Pack 2. More information is available from IBM Document swg24015347 at the following URL. http://www-1.ibm.com/support/docview.wss?uid=swg24015347 VII. CVE INFORMATION A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not been assigned yet. VIII. DISCLOSURE TIMELINE 01/30/2007 Initial vendor notification 03/22/2007 Initial vendor response 03/31/2007 Coordinated public disclosure IX. CREDIT The discoverer of these vulnerabilities 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 © 2007 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. 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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 iQCVAwUBRmewdih9+71yA2DNAQJaswP/bApT9IDxFco0h/6G99fwCLDNEzTYbUM4 VMTRlriIMnmKMh52xVAKhTdkDcgvFwXavhGX5+D5JJ7ZLhS9el5nqbRqeidBVEyg PWTOnkS4Eco2sqnOgXXvTsp/frv0ZmroRYJXDQFbhXhQ0EIddGCCVidTgHcAbdQ7 GtzAOfJlJLo= =UHzg -----END PGP SIGNATURE-----