__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN SwiftView ActiveX Control and Plug-in Vulnerability [US-CERT Vulnerability VU#639169] February 1, 2008 18:00 GMT Number S-154 ______________________________________________________________________________ PROBLEM: The SwiftView ActiveX control and plug-in contain a stack buffer overflow, which may allow a remote, unauthorized attacker to execute arbitrary code on a vulnerable system. PLATFORM: SwiftView and SwiftSend 8.3.5 DAMAGE: Execute arbitrary code. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. By conviencing a user to view a specially ASSESSMENT: crafted HTML document (e.g., a web page or an HTML email message or attachment), a remote, unauthenticated attacker may be able to execute arbitrary code with the privileges of the user on a vulnerable system. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/s-154.shtml ORIGINAL BULLETIN: http://www.kb.cert.org/vuls/id/639169 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-5602 ______________________________________________________________________________ [***** Start US-CERT Vulnerability VU#639169 *****] Vulnerability Note VU#639169 SwiftView ActiveX control and plug-in stack buffer overflow Overview The SwiftView ActiveX control and plug-in contain a stack buffer overflow, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system. I. Description SwiftView is software used to view or print PCL, HPGL, and TIFF files. SwiftSend is a product used for secure electronic document communications. Both of these products include the SwiftView ActiveX control and Netscape-style plug-in, which are provided by svocx.ocx and npsview.dll, respectively. The SwiftView ActiveX control and Netscape-style plug-in contain stack buffer overflows. II. Impact By convincing a user to view a specially crafted HTML document (e.g., a web page or an HTML email message or attachment), a remote, unauthenticated attacker may be able to execute arbitrary code with the privileges of the user on a vulnerable system. III. Solution Apply an update This issue is addressed in version 8.3.5 of the SwiftView and SwiftSend software. Please see eLynx Security Bulletin SBSV-07-10-02 for more details. Disable the SwiftView ActiveX control in Internet Explorer The vulnerable ActiveX control can be disabled in Internet Explorer by setting the kill bit for the following CLSID: {7DD62E58-5FA8-11D2-AFB7-00104B64F126} More information about how to set the kill bit is available in Microsoft Support Document 240797. Alternatively, the following text can be saved as a .REG file and imported to set the kill bit for this control: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility \{7DD62E58-5FA8-11D2-AFB7-00104B64F126}] "Compatibility Flags"=dword:00000400 Disable the SwiftView plug-in in other browsers The SwiftView plug-in can be disabled in other browsers, such as Firefox, by removing the npsview.dll file from the plugins directory. Disable ActiveX Disabling ActiveX controls in the Internet Zone (or any zone used by an attacker) appears to prevent exploitation of this and other ActiveX vulnerabilities. Instructions for disabling ActiveX in the Internet Zone can be found in the "Securing Your Web Browser" document. Disable plug-ins Disabling plug-ins by default can prevent exploitation of this and other plug-in vulnerabilities. This can be accomplished by configuring NoScript to Forbid other plugins for untrusted sites. Systems Affected Vendor Status Date Updated SwiftView Vulnerable 22-Oct-2007 References http://www.cert.org/tech_tips/securing_browser http://www.swiftview.com/tech/security/bulletins/SBSV-07-10-02.htm http://support.microsoft.com/kb/240797 Credit This vulnerability was reported by Will Dormann of the CERT/CC This document was written by Will Dormann. Other Information Date Public 01/30/2008 Date First Published 01/30/2008 03:14:36 PM Date Last Updated 01/30/2008 CERT Advisory CVE Name CVE-2007-5602 US-CERT Technical Alerts Metric 10.60 Document Revision 13 [***** End US-CERT Vulnerability VU#639169 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of US-CERT 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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