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AUSCERT External Security Bulletin Redistribution
ESB-2008.0629 -- [Win]
Novell iPrint Client ActiveX control stack buffer overflows
1 July 2008
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AusCERT Security Bulletin Summary
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Product: Novell iPrint Client ActiveX
Publisher: US-CERT
Operating System: Windows
Impact: Execute Arbitrary Code/Commands
Access: Remote/Unauthenticated
CVE Names: CVE-2008-2908
Original Bulletin: http://www.kb.cert.org/vuls/id/145313
Revision History: July 1 2008: Added CVE
June 19 2008: Initial Release
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Vulnerability Note VU#145313
Novell iPrint Client ActiveX control stack buffer overflows
Overview
The Novell iPrint Client ActiveX control contains multiple stack buffer
overflows, which can allow a remote, unauthenticated attacker to execute
arbitrary code on a vulnerable system.
I. Description
Novell iPrint is a software printing solution that allows for printing over
the internet. One of the components of iPrint is an ActiveX control, which is
provided by the file ienipp.ocx. This ActiveX control contains buffer
overflows in multiple initialization parameters.
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), an attacker may be able to
execute arbitrary code with the privileges of the user.
III. Solution
Apply an update
This issue is addressed in the Novell iPrint Client for Windows 4.36. Please
see the Novell Support document 5028061 for more details.
Disable the Novell iPrint Client ActiveX control in Internet Explorer
The vulnerable ActiveX control can be disabled in Internet Explorer by setting
the kill bit for the following CLSID:
{36723F97-7AA0-11D4-8919-FF2D71D0D32C}
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\{36723F97-7AA0-11D4-8919-FF2D71D0D32C}]
"Compatibility Flags"=dword:00000400
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.
Systems Affected
Vendor Status Date Updated
Novell, Inc. Vulnerable 18-Jun-2008
References
http://www.cert.org/tech_tips/securing_browser/
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5028061.html
http://download.novell.com/Download?buildid=cbAVckbi_AM~
http://www.novell.com/products/netware/printing/quicklook.html
http://secunia.com/advisories/30709/
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 06/12/2008
Date First Published 06/18/2008 10:06:41 AM
Date Last Updated 06/18/2008
CERT Advisory
CVE Name
US-CERT Technical Alerts
Metric 10.94
Document Revision 2
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