Software Engineering Institute

Aurigma ImageUploader is an ActiveX control that provides the ability to upload pictures using the Internet Explorer web browser. The Aurigma ImageUploader ActiveX control is used by multiple web sites, such as Facebook and MySpace. This ActiveX control contains multiple stack buffer overflows in several properties, including Action, ExtractExif, and ExtractIptc. Limited testing has shown that versions up to and including version 5.0.30 may be vulnerable.

Exploit code is publicly available.

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.

Apply an update
This issue is addressed in versions 5.1.0, 4.7.0, 5.0.41, and 4.6.31. Please see the Aurigma blog entry for more details. This issue is also addressed in Microsoft Security Advisory (953839). This update sets the kill bits for various Aurigma ImageUploader ActiveX control versions and is available through various update channels, such as Microsoft Update.

Disable the Aurigma ImageUploader ActiveX controls in Internet Explorer

The Aurigma ActiveX controls can be disabled in Internet Explorer by setting the kill bit for the following CLSIDs. Note that this list may not include all versions of the control.

{104B0A37-AB99-4F06-8032-8BBDC3B77DDB}
{17D667BA-5675-4AAB-9221-08B9379384D4}
{48DD0448-9209-4F81-9F6D-D83562940134}
{55027008-315F-4F45-BBC3-8BE119764741}
{5C6698D9-7BE4-4122-8EC5-291D84DBD4A0}
{6E5E167B-1566-4316-B27F-0DDAB3484CF7}
{A18962F6-E6ED-40B1-97C9-1FB36F38BFA8}
{AE2B937E-EA7D-4A8D-888C-B68D7F72A3C4}
{AE6C4705-0F11-4ACB-BDD4-37F138BEF289}
{B85537E9-2D9C-400A-BC92-B04F4D9FF17D}
{BA162249-F2C5-4851-8ADC-FC58CB424243}
{D1D98C0F-A339-42AB-BD5F-EA0FF5D0E65F}
{D1EA8D3D-F511-4388-B754-4A0CC14A4778}
{F1F51698-7B63-4394-8743-1F4CF1853DE1}
{F89EF74A-956B-4BD3-A066-4F23DF891982}
{FB90BA05-66E6-4c56-BCD3-D65B0F7EBA39}
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\{104B0A37-AB99-4F06-8032-8BBDC3B77DDB}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{17D667BA-5675-4AAB-9221-08B9379384D4}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{48DD0448-9209-4F81-9F6D-D83562940134}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{55027008-315F-4F45-BBC3-8BE119764741}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{5C6698D9-7BE4-4122-8EC5-291D84DBD4A0}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{6E5E167B-1566-4316-B27F-0DDAB3484CF7}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{A18962F6-E6ED-40B1-97C9-1FB36F38BFA8}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{AE2B937E-EA7D-4A8D-888C-B68D7F72A3C4}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{AE6C4705-0F11-4ACB-BDD4-37F138BEF289}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{B85537E9-2D9C-400A-BC92-B04F4D9FF17D}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{BA162249-F2C5-4851-8ADC-FC58CB424243}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{D1D98C0F-A339-42AB-BD5F-EA0FF5D0E65F}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{D1EA8D3D-F511-4388-B754-4A0CC14A4778}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{F1F51698-7B63-4394-8743-1F4CF1853DE1}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{F89EF74A-956B-4BD3-A066-4F23DF891982}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{FB90BA05-66E6-4c56-BCD3-D65B0F7EBA39}]
"Compatibility Flags"=dword:00000400
The Aurigma security bulletin contains a more complete list of CLSIDs used by the ImageUploader ActiveX control. A killbit .REG file is provided as well.

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.