__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Potential vulnerabilities in Adobe Reader and Acrobat [APSA06-02] November 29, 2006 18:00 GMT Number R-058 ______________________________________________________________________________ PROBLEM: Adobe is aware of a recently published report of potential vulnerabilities in Adobe Reader and Acrobat. These vulnerabilities would cause the application to crash and could potentially allow an attacker to take control of the affected system. PLATFORM: Adobe Reader 7.0.0 through 7.0.8 Adobe Acrobat Standard and Professional 7.0.0 through 7.0.8 DAMAGE: Could potentially allow an attacker to take control of the affected system. SOLUTION: Apply current patches. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. Could potentially allow an attacker to take ASSESSMENT: control of the affected system. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-058.shtml ORIGINAL BULLETIN: http://www.adobe.com/support/security/advisories/apsa06-02.html CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6027 ______________________________________________________________________________ [***** Start APSA06-02 *****] Security advisory Potential vulnerabilities in Adobe Reader and Acrobat Release date: November 28, 2006 Vulnerability identifier: APSA06-02 CVE number: CVE-2006-6027 Platform: Windows Summary Adobe is aware of a recently published report of potential vulnerabilities in Adobe Reader and Acrobat. These vulnerabilities would cause the application to crash and could potentially allow an attacker to take control of the affected system. Affected software versions Adobe Reader 7.0.0 through 7.0.8 and Adobe Acrobat Standard and Professional 7.0.0 through 7.0.8 on the Windows platform when using Internet Explorer. Users of other browsers are not affected. Solution The Secure Software Engineering team is working with the Adobe Reader Engineering team on an update to Adobe Reader and Acrobat 7.0.8 that will resolve these issues, which is expected to be available in the near future. A security bulletin will be published on http://www.adobe.com/support/security as soon as that update is available. The upcoming version of Adobe Reader, which will not be vulnerable to this issue, is also expected to be available in the near future. Acrobat 8 is not affected by this issue. The vulnerability is in an ActiveX control used by Internet Explorer; users of other browsers are not affected. The following workaround will prevent these vulnerabilities from occurring in Adobe Reader 7.0.X on Windows using Internet Explorer: 1. Exit Internet Explorer and Adobe Reader. 2. Browse to :\Program Files\Adobe\Acrobat 7.0\ActiveX. Note: If you did not install Acrobat to the default location, browse to the location of your Acrobat 7.0 folder. 3. Select AcroPDF.dll and delete it. NOTE: This workaround will prevent PDF documents from opening within an Internet Explorer window. After applying this workaround, clicking on PDF files within Internet Explorer will either open in a separate instance of Adobe Reader or the user will be prompted to download the file, which can then be opened in Adobe Reader. This workaround may disrupt some enterprise workflows and use of PDF forms. All documented security vulnerabilities and their solutions are distributed through the Adobe security notification service. You can sign up for the service at the following URL: http://www.adobe.com/cfusion/entitlement/index.cfm?e=szalert. Severity rating Adobe categorizes this as a critical issue. Acknowledgments Adobe would like to thank FrSIRT.com for reporting these vulnerabilities and for working with us to help protect our customers' security. Adobe disclaimer License agreement By using software of Adobe Systems Incorporated or its subsidiaries ("Adobe"); you agree to the following terms and conditions. If you do not agree with such terms and conditions; do not use the software. The terms of an end user license agreement accompanying a particular software file upon installation or download of the software shall supersede the terms presented below. The export and re-export of Adobe software products are controlled by the United States Export Administration Regulations and such software may not be exported or re-exported to Cuba; Iran; Iraq; Libya; North Korea; Sudan; or Syria or any country to which the United States embargoes goods. In addition; Adobe software may not be distributed to persons on the Table of Denial Orders; the Entity List; or the List of Specially Designated Nationals. By downloading or using an Adobe software product you are certifying that you are not a national of Cuba; Iran; Iraq; Libya; North Korea; Sudan; or Syria or any country to which the United States embargoes goods and that you are not a person on the Table of Denial Orders; the Entity List; or the List of Specially Designated Nationals. If the software is designed for use with an application software product (the "Host Application") published by Adobe; Adobe grants you a non-exclusive license to use such software with the Host Application only; provided you possess a valid license from Adobe for the Host Application. Except as set forth below; such software is licensed to you subject to the terms and conditions of the End User License Agreement from Adobe governing your use of the Host Application. DISCLAIMER OF WARRANTIES: YOU AGREE THAT ADOBE HAS MADE NO EXPRESS WARRANTIES TO YOU REGARDING THE SOFTWARE AND THAT THE SOFTWARE IS BEING PROVIDED TO YOU "AS IS" WITHOUT WARRANTY OF ANY KIND. ADOBE DISCLAIMS ALL WARRANTIES WITH REGARD TO THE SOFTWARE; EXPRESS OR IMPLIED; INCLUDING; WITHOUT LIMITATION; ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE; MERCHANTABILITY; MERCHANTABLE QUALITY OR NONINFRINGEMENT OF THIRD PARTY RIGHTS. Some states or jurisdictions do not allow the exclusion of implied warranties; so the above limitations may not apply to you. LIMIT OF LIABILITY: IN NO EVENT WILL ADOBE BE LIABLE TO YOU FOR ANY LOSS OF USE; INTERRUPTION OF BUSINESS; OR ANY DIRECT; INDIRECT; SPECIAL; INCIDENTAL; OR CONSEQUENTIAL DAMAGES OF ANY KIND (INCLUDING LOST PROFITS) REGARDLESS OF THE FORM OF ACTION WHETHER IN CONTRACT; TORT (INCLUDING NEGLIGENCE); STRICT PRODUCT LIABILITY OR OTHERWISE; EVEN IF ADOBE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Some states or jurisdictions do not allow the exclusion or limitation of incidental or consequential damages; so the above limitation or exclusion may not apply to you. [***** End APSA06-02 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Adobe 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. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC) R-048: Citrix Access Gateway R-049: HTTP Header Injection Vulnerabilities in Adobe Flash Player R-050: OpenSSH Security Update R-051: nss_ldap Security Update R-052: NetGear WG111v2 Wireless Driver Long Beacon Overflow R-053: gv R-054: NaviCOPA Web Server Vulnerability R-055: Linux-ftpd Programming Error R-056: pstotext Insecure File Name Quoting R-057: Apple Security Update 2006-007