Trend Micro ServerProtect Crystal Reports ReportServer File Disclosure iDefense Security Advisory 12.14.05 www.idefense.com/application/poi/display?id=352&type=vulnerabilities December 14, 2005 I. BACKGROUND Trend Micro Inc.'s ServerProtect provides antivirus scanning with centralized management of virus outbreaks, scanning, patter file updates, notifications and remote installations. More information about the product set is available at: www.trendmicro.com/en/products/file-server/sp/evaluate/overview.htm II. DESCRIPTION Remote exploitation of an input validation vulnerability in Trend Micro Inc.'s ServerProtect Management Console allows remote attackers to view the contents of arbitrary files on the underlying system. The problem specifically exists within the handling of the IMAGE parameter in the script rptserver.asp. The vulnerable area of code is outlined in the following snippet: Set session("oEMF") = Server.CreateObject("CREmfgen.CREmfgen.2") Call ParseQS() if IMAGE <> "" then Call session("oEMF").StreamImage(IMAGE, DEL) Response.End end if An attacker can utilize directory traversal modifiers to traverse outside the system temporary directory and access any file on the same volume. III. ANALYSIS Successful exploitation of the described vulnerability allows remote attackers to view the contents of arbitrary files on the underlying system. Exploitation does not require credentials thereby exacerbating the impact of this vulnerability. IV. DETECTION iDefense has confirmed the existence of this vulnerability in Trend Micro ServerProtect for Windows Management Console 5.58 running with Trend Micro Control Manager 2.5/3.0 and Trend Micro Damage Cleanup Server 1.1. It is suspected that earlier versions and versions for other platforms are vulnerable as well. V. WORKAROUND Employ firewalls, access control lists or other TCP/UDP restriction mechanism to limit access to the vulnerable system on the configured port, generally TCP port 80. VI. VENDOR RESPONSE "Trend Micro has become aware of a vulnerability related to Crystal Report, a reporting component found in Trend Micro Control Manager (v2.5 and v3.0). Under certain conditions, arbitrary files on the ReportServer volume inside Trend Micro Control Manager software could be viewed or accessed remotely. Trend Micro is currently consulting with Crystal Report regarding permanent solutions to this reporting component. A temporary workaround solution can be recommended through contacting Trend Micro customer and technical support." VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2005-1930 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 06/03/2005 Initial vendor notification 06/06/2005 Initial vendor response 12/14/2005 Public disclosure IX. CREDIT The discoverer of this vulnerability wishes to remain anonymous. Get paid for vulnerability research http://www.iDefense.com/poi/teams/vcp.jsp Free tools, research and upcoming events http://labs.iDefense.com X. LEGAL NOTICES Copyright &#169; 2005 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 email customerservice (at) iDefense (dot) com [email concealed] 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.