[NT] ICQ Client Cross-Application Scripting
- From: SecuriTeam <support@xxxxxxxxxxxxxx>
- Date: 11 May 2006 16:42:09 +0200
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ICQ Client Cross-Application Scripting
<http://www.icq.com/> ICQ is a popular instant messaging application by
Under some conditions the ICQ client is vulnerable to remote script
injection into the My Computer Security Zone of Internet Explorer's
component used to display advertisement banners.
Cross application scripting (XAS) is possible when an application
executes data in a security context different from the original content
(presumably one with less security restrictions). For example the data
may be obtained from an un-trusted source (a remote web server) that is
sent unfiltered into a trusted application such as when web content is
downloaded from a remote server, and then re-displayed on the local
host. Any application that downloads and then later displays and
ICQ Client has very annoying advertising function. Banners are displayed
inside Internet Explorer COM object embedded into main window, Welcome
Screen and every Message Session dialogs. Under some condition
attacker can replace HTML content in this forms with malicious script
which will be executed in My Computer security zone of Internet
1. Press Ctrl+Shift+Esc
2. In File/Run menu type cmd.exe
3. In cmd.exe console type
echo 127.0.0.1 ar.atwola.com >> %SystemRoot%\system32\drivers\etc\hosts
* 5/2005 - Vulnerability discovered
* 4/2006 - Last attempt to contact vendor
* 5/2006 - Public disclosure
The information has been provided by 3APA3A.
The original article can be found at: <http://www.security.nnov.ru/>
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