__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Windows Vulnerability in WordPerfect Converter Could Allow Code Execution [Microsoft Security Bulletin MS04-027] September 14, 2004 22:00 GMT Number O-214 [REVISED 23 Sep 2004] ______________________________________________________________________________ PROBLEM: A vulnerability in the Microsoft WordPerfect converter included with most Microsoft Office products could allow code execution by a remote intruder with the privileges of the logged in user. If the user is logged in as administrator, the intruder can get root privileges. PLATFORM: Office 2000 SP 3 Office XP SP 3 Office XP SP 2 Office 2003 Works 2001, Works 2002, Works 2003, Works 2004 Note that Office 2003 SP 1 is not affected. DAMAGE: If a user opens a specially crafted WordPerfect document with a Microsoft Office product the vulnerability is triggered and the remote intruder can perform any operation the logged in user is allowed to do. If the user is logged in as administrator, the remote intruder can get root privileges on the system. SOLUTION: Apply the patches indicated in the bulletin. You can use the Microsoft security Baseline Analyzer or the System Management Server to determine which products need to be upgraded. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM, or HIGH, if you routinely open WordPerfect ASSESSMENT: documents with Windows Office products. Most user's do not routinely open WordPerfect documents with Windows Office products so the risk is medium because you might accidently do so. If you routinely open WordPerfect documents with Windows Office products the risk is high. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/o-214.shtml ORIGINAL BULLETIN: http://www.microsoft.com/technet/security/bulletin/ms04-027.mspx CVE/CAN: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CAN-2004-0573 ______________________________________________________________________________ REVISION HISTORY: 09/23/04 - Microsoft added Office XP Service Pack 2 to their list of affected products. [***** Start Microsoft Security Bulletin MS04-027 *****] Microsoft Security Bulletin MS04-027 Vulnerability in WordPerfect Converter Could Allow Code Execution (884933) Issued: September 14, 2004 Updated: September 21, 2004 Version: 1.2 Summary Who should read this document: Customers who use Microsoft Office, Microsoft FrontPage, Microsoft Publisher, or Microsoft Works Suite. Impact of Vulnerability: Remote Code Execution Maximum Severity Rating: Important Recommendation: Customers should install the update at the earliest opportunity. Security Update Replacement: This update replaces the security update that was provided as part of Microsoft Security Bulletin MS03-036. Caveats: None Tested Software and Security Update Download Locations: Affected Software: • Microsoft Office 2000 Software Service Pack 3 - Download the update Microsoft Office 2000 Service Pack 3 Software: • Word 2000 • FrontPage 2000 • Publisher 2000 • Microsoft Office XP Software Service Pack 3 - Download the update (KB873379) • Microsoft Office XP Software Service Pack 2 - Download the administrative update (KB873379) Microsoft Office XP Service Software: • Word 2002 • FrontPage 2002 • Publisher 2002 • Microsoft Office 2003 - Download the update Microsoft Office 2003 Software: • Word 2003 • FrontPage 2003 • Publisher 2003 • Microsoft Works Suites: • Microsoft Works Suite 2001 - Download the update (same as Microsoft Office 2000 link) • Microsoft Works Suite 2002 - Download the update (same as the Microsoft Office XP link) • Microsoft Works Suite 2003 - Download the update (same as the Microsoft Office XP link) • Microsoft Works Suite 2004 - Download the update (same as the Microsoft Office XP link) Note Office XP Service Pack 2 and Office XP Service Pack 3 are both vulnerable to this issue. However the security update for Office XP Service Pack 2 is only provided as part of the Office XP administrative security update. For more information, see the Security Update Information section. Office 2003 Service Pack 1 contains an updated version of the affected component and is not affected. Customers that have installed this service pack do not need to install the available security updates for this software. Non Affected Software: • Microsoft Office 2003 Service Pack 1 Tested Microsoft Office Components: • Microsoft WordPerfect 5.x Converter Affected Components: • Microsoft WordPerfect 5.x Converter The software in this list has been tested to determine if the versions are affected. Other versions either no longer include security update support or may not be affected. To determine the support lifecycle for your product and version, visit the following Microsoft Support Lifecycle Web site. General Information Executive Summary: This update resolves a newly discovered, privately reported vulnerability. A remote code execution vulnerability exists in the WordPerfect 5.x Converter that is provided as part of the affected software. The vulnerability is documented in the Vulnerability Details section of this bulletin. If a user is logged on with administrative privileges, an attacker who successfully exploited this vulnerability could take complete control of an affected system, including installing programs; viewing, changing, or deleting data; or creating new accounts with full privileges. Users whose accounts are configured to have fewer privileges on the system would be at less risk than users who operate with administrative privileges. However, user interaction is required to exploit this vulnerability. Microsoft recommends that customers install the update at the earliest opportunity. Severity Ratings and Vulnerability Identifiers: Vulnerability Identifiers - WordPerfect 5.x Converter Vulnerability - CAN-2004-0573 Impact of Vulnerability - Remote Code Execution All Software Listed in the Affected Software Section - Important This assessment is based on the types of systems that are affected by the vulnerability, their typical deployment patterns, and the effect that exploiting the vulnerability would have on them. Acknowledgments Microsoft thanks the following for working with us to help protect customers: • Peter Winter-Smith of Next Generation Security Software Ltd. for reporting the WordPerfect 5.x Converter Vulnerability (CAN-2004-0573). Obtaining Other Security Updates: Updates for other security issues are available from the following locations: • Security updates are available from the Microsoft Download Center: You can find them most easily by doing a keyword search for "security_patch". • Updates for consumer platforms are available from the Windows Update Web site. Support: • Customers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates. • International customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site. Security Resources: • The Microsoft TechNet Security Web site provides additional information about security in Microsoft products. • Microsoft Software Update Services • Microsoft Baseline Security Analyzer (MBSA) • Windows Update • Windows Update Catalog: For more information about the Windows Update Catalog, see Microsoft Knowledge Base Article Microsoft Knowledge Base Article 323166. • Office Update Software Update Services: By using Microsoft Software Update Services (SUS), administrators can quickly and reliably deploy the latest critical updates and security updates to Windows 2000 and Windows Server 2003-based servers, and to desktop systems that are running Windows 2000 Professional or Windows XP Professional. For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site. Systems Management Server: Microsoft Systems Management Server (SMS) delivers a highly-configurable enterprise solution for managing updates. By using SMS, administrators can identify Windows-based systems that require security updates and to perform controlled deployment of these updates throughout the enterprise with minimal disruption to end users. For more information about how administrators can use SMS 2003 to deploy security updates, see the SMS 2003 Security Patch Management Web site. SMS 2.0 users can also use Software Updates Service Feature Pack to help deploy security updates. For information about SMS, visit the SMS Web site. Note SMS uses the Microsoft Baseline Security Analyzer and the Microsoft Office Detection Tool to provide broad support for security bulletin update detection and deployment. Some software updates may not be detected by these tools. Administrators can use the inventory capabilities of the SMS in these cases to target updates to specific systems. For more information about this procedure, see the following Web site. Some security updates require administrative rights following a restart of the system. Administrators can use the Elevated Rights Deployment Tool (available in the SMS 2003 Administration Feature Pack and in the SMS 2.0 Administration Feature Pack) to install these updates. Disclaimer: The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a articular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply. Revisions: • V1.0 (September 14, 2004): Bulletin published • V1.1 (September 15, 2004): Affected Software Section updated. Office XP Service Pack 2 is affected and this has been clarified. • V1.2 (September 21, 2004): Added clarification around MBSA detection of this security update. [***** End Microsoft Security Bulletin MS04-027 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Microsoft for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. 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