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The U.S. Department of Energy
Computer Incident Advisory Capability
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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.
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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.
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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
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[***** 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
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