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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0348 -- [Win] Borland CaliberRM StarTeam Multicast Service Buffer Overflow Vulnerability 4 April 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Borland CaliberRM Publisher: iDEFENSE Operating System: Windows Impact: Administrator Compromise Access: Remote/Unauthenticated CVE Names: CVE-2008-0311 Original Bulletin: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=675 - --------------------------BEGIN INCLUDED TEXT-------------------- iDefense Security Advisory 04.02.08 http://labs.idefense.com/intelligence/vulnerabilities/ Apr 02, 2008 I. BACKGROUND Borland CaliberRM is an enterprise software requirements management system. It is part of Borland's distributed development and deployment solution. For more information about Borland CaliberRM, please visit following website. http://www.borland.com/us/products/caliber/index.html II. DESCRIPTION Remote exploitation of a buffer overflow vulnerability in Borland Software Corp.'s CaliberRM enterprise software requirements management system could allow attackers to execute arbitrary code with SYSTEM level privileges. This vulnerability exists in the StarTeam Multicast Service component (STMulticastService). This service is implemented using the HTTP protocol. The vulnerable function, PGMWebHandler::parse_request, is shown below. .text:003AA15D call PGMWebHandler::parse_request(char const *,uint,char *,uint,http_request_info_t &) ... .text:003AA35E loc_3AA35E: .text:003AA35E mov al, [ebx] .text:003AA360 cmp al, 0Ah .text:003AA362 mov [edx], al ; edx points to the stack, overflowable because of the loop .text:003AA364 jnz loc_3AA4EF ... .text:003AA36A mov byte ptr [edx+1], 0 .text:003AA36E mov al, byte ptr [esp+618h+lbuff] .text:003AA372 cmp al, 0Dh .text:003AA374 jz loc_3AA509 ... .text:003AA4F0 loc_3AA4F0: .text:003AA4F0 mov eax, [esp+618h+count] .text:003AA4F4 mov ecx, [esp+618h+req_len] .text:003AA4FB inc ebx .text:003AA4FC inc eax .text:003AA4FD cmp eax, ecx .text:003AA4FF mov [esp+618h+count], eax .text:003AA503 jl loc_3AA35E ; loop back up While searching for the standard 0x0a0d that ends HTTP requests, a loop copies attacker supplied data byte by byte into a fixed-size stack buffer. If a large enough request is sent, the return address, SEH pointers, and other stack data is overwritten. III. ANALYSIS Exploitation allows attackers to execute arbitrary code with SYSTEM level privileges. In order to exploit this vulnerability an attacker would have to send malicious data to the STMulticastService service listening on TCP port 3057. The StarTeam Multicast service is not installed by default with CaliberRM 2006. The user must enable MPX Events and the StarTeam Message Broker option during the installation process. IV. DETECTION iDefense confirmed that the trial version of Borland CaliberRM 2006 (file version 9.0.809.000) is vulnerable. The actual vulnerable component is StarTeam Multicast Service 6.4. Other Borland products containing StarTeam Multicast Service component, such as Borland StarTeam, may also be affected. V. WORKAROUND In order to prevent exploitation of this vulnerability, administrators can disable the Multicast Service monitoring port. For more information consult Borland's Knowledge Base at the following URL. http://support.borland.com/kbshow.php?q=29083 VI. VENDOR RESPONSE Borland Software Corp. has not responded to repeated inquiries regarding this vulnerability. iDefense Labs confirmed that the current version (Borland CaliberRM 2008) still contains the vulnerable code. However, the monitoring port appears to be disabled in a default installation. VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2008-0311 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 03/20/2007 Initial vendor notification 03/20/2007 Initial vendor response 08/06/2007 Second vendor notification 11/02/2007 Third vendor notification 04/02/2008 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 iQCVAwUBR/WC3Sh9+71yA2DNAQKZJQP/XVRi3f2Pmrj3Qqar17pjCOyLBpaZjtcI qNZT5MQkuNmPk3HfbOJcvEKEwn0Z9+mBxGlGSc2+IjhVJhWdAKlXoUTSSRUgCU3E PB3Ep18adIeZT/WvD2VN0XpYhtvASmeJPlQ9uDbbZBqyNoJRx3TmvY8wHt8LIHHc Tk0CYmtDOWM= =oraa -----END PGP SIGNATURE-----