Vulnerability Note VU#907481

Intuit QuickBooks Online Edition ActiveX control stack buffer overflows

Overview

The Intuit QuickBooks Online Edition ActiveX control contains multiple stack buffer overflows, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

I. Description

Intuit QuickBooks Online Edition is a version of QuickBooks that functions within Internet Explorer as an ActiveX control. This ActiveX control contains multiple stack buffer overflow vulnerabilities, which can allow an overwrite of the process Structured Exception Handler (SEH).

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. The attacker could also cause Internet Explorer (or the program using the WebBrowser control) to crash.

III. Solution

Apply an update

This issue is addressed in version 10 of the QuickBooks Online Edition ActiveX control. The fixed version of the QuickBooks Online Edition ActiveX control can be installed from the QuickBooks Online Edition web site.

Disable the QuickBooks Online Edition ActiveX control in Internet Explorer

The vulnerable QuickBooks Online Edition ActiveX controls (versions 9 and earlier) can be disabled in Internet Explorer by setting the kill bit for the following CLSIDs:

{CF9DEB90-8DE3-11D5-BAE4-00105AAAFF94}
{4F720B9C-24B1-4948-A035-8853DC01F19E}
{2EFF8C97-F2A8-4395-9F47-9A06F998BF88}
{2CC3D8DE-18BF-43ff-8CB8-21B442300FD5}
{DBB177CC-6908-4b53-9BEE-F1C697818D65}
{A80D199B-CFDD-4da4-8C47-2310D5B8DD97}
{0D3983A9-4E29-4f33-8313-DA22B29D3F87}
{D92D7607-05D9-4dd8-B68B-D458948FB883}
{8CE3BAE6-AB66-40b6-9019-41E5282FF1E2}
{40F8967E-34A6-474a-837A-CEC1E7DAC54C}

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_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX
Compatibility{CF9DEB90-8DE3-11D5-BAE4-00105AAAFF94}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX
Compatibility{4F720B9C-24B1-4948-A035-8853DC01F19E}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX
Compatibility{2EFF8C97-F2A8-4395-9F47-9A06F998BF88}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX
Compatibility{2CC3D8DE-18BF-43ff-8CB8-21B442300FD5}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX
Compatibility{DBB177CC-6908-4b53-9BEE-F1C697818D65}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX
Compatibility{A80D199B-CFDD-4da4-8C47-2310D5B8DD97}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX
Compatibility{0D3983A9-4E29-4f33-8313-DA22B29D3F87}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX
Compatibility{D92D7607-05D9-4dd8-B68B-D458948FB883}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX
Compatibility{8CE3BAE6-AB66-40b6-9019-41E5282FF1E2}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX
Compatibility{40F8967E-34A6-474a-837A-CEC1E7DAC54C}]
"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
Intuit, Inc.	Vulnerable	4-Sep-2007

References

http://www.cert.org/tech_tips/securing_browser/#Internet_Explorer
http://oe.quickbooks.com/
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	09/04/2007
Date First Published	09/04/2007 11:02:11 PM
Date Last Updated	09/04/2007
CERT Advisory
CVE Name	CVE-2007-0322
Metric	3.54
Document Revision	8