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2024-11-21 19:43:03 +00:00 · 2021-01-03 22:58:44 +05:00 · 2021-01-03 22:58:44 +05:00 · f045579c07
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+# TryHackMe-Nax
+
+## NMAP
+
+```
+Host is up (0.45s latency).          
+Not shown: 995 closed ports          
+PORT    STATE SERVICE  VERSION                                                                                                                      
+22/tcp  open  ssh      OpenSSH 7.2p2 Ubuntu 4ubuntu2.8 (Ubuntu Linux; protocol 2.0)                                                                 
+| ssh-hostkey:                                                                                                                                      
+|   2048 62:1d:d9:88:01:77:0a:52:bb:59:f9:da:c1:a6:e3:cd (RSA)                                                                                      
+|   256 af:67:7d:24:e5:95:f4:44:72:d1:0c:39:8d:cc:21:15 (ECDSA)                                                                                     
+|_  256 20:28:15:ef:13:c8:9f:b8:a7:0f:50:e6:2f:3b:1e:57 (ED25519)     
+25/tcp  open  smtp     Postfix smtpd                                      
+|_smtp-commands: ubuntu.localdomain, PIPELINING, SIZE 10240000, VRFY, ETRN, STARTTLS, ENHANCEDSTATUSCODES, 8BITMIME, DSN, 
+|_ssl-date: TLS randomness does not represent time                        
+80/tcp  open  http     Apache httpd 2.4.18 ((Ubuntu))                     
+|_http-server-header: Apache/2.4.18 (Ubuntu)                              
+|_http-title: Site doesn't have a title (text/html).                      
+389/tcp open  ldap     OpenLDAP 2.2.X - 2.3.X                             
+443/tcp open  ssl/http Apache httpd 2.4.18 ((Ubuntu))                     
+|_http-server-header: Apache/2.4.18 (Ubuntu)                              
+|_http-title: 400 Bad Request                                             
+| ssl-cert: Subject: commonName=192.168.85.153/organizationName=Nagios Enterprises/stateOrProvinceName=Minnesota/countryName=US
+| Not valid before: 2020-03-24T00:14:58                                   
+|_Not valid after:  2030-03-22T00:14:58                                   
+|_ssl-date: TLS randomness does not represent time                        
+| tls-alpn:                          
+|_  http/1.1                         
+Service Info: Host:  ubuntu.localdomain; OS: Linux; CPE: cpe:/o:linux:linux_kernel                                                                  
+
+Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .                                                      
+Nmap done: 1 IP address (1 host up) scanned in 95.23 seconds                          
+```
+
+## PORT 80
+
+If we go to port 80 we'll see a figure with some ASCII characters and on the bottom we will see some periodic table elements
+
+<img src="https://imgur.com/HWq8nZG.png"/>
+
+If we do some fuzzing we will only be able to find `index.php` which is a login page for nagios XI
+
+<img src="https://imgur.com/M6Yowgq.png"/>
+
+<img src="https://imgur.com/ZsIINj4.png"/>
+
+I tried using default credentials like `root` : `password` , `admin` `admin` , `admin` : `password` none of them worked , I also tried changing the cookie value but this was the message I got when I tried to login with that 
+
+<img src="https://imgur.com/TCmc0bS.png"/>
+
+Tried searching the `nagiosxi` directory but no look because I can't access them without being logged in !
+
+<img src="https://imgur.com/EHIiNcN.png"/>
+
+
+Going back to the webpage where we saw the elements we know that these elements have atomic numbers 
+
+<img src="https://imgur.com/Amm7mov.png"/>
+
+Do this for all elements and get thier atomic numbers
+
+Ag - 47 
+Hg - 80 
+Ta - 73
+Sb - 51
+Po - 84
+Pd - 46
+Hg - 80
+Pt - 78
+Lr - 103
+
+
+Now I tried to merge those numbers in a string `47480735184468078103` put it in cyberchef and tried convert from decimal,hex,base64.32 and all but couldn't find anything but then I had a hunch that these numbers might lead to an ASCII conversion of letters
+
+
+<img src="https://imgur.com/c5PVfm0.png"/>
+
+47 - /
+80 - P
+73 - I
+51 - 3
+84 - T
+46 - .
+80 - P
+78 - N
+103 - g
+
+
+So now combining them `/PI3T.PNg` 
+
+<img src="https://imgur.com/A8TKWHh.png"/>
+
+Using an online piet interpreter we'll get an error
+
+<img src="https://imgur.com/PFwBLbl.png"/>
+
+First convert it to `.png` and then upload it to online interpreter for piet
+
+<img src="https://imgur.com/EBawCiq.png"/>
+
+nagiosadmin: n3p3UQ&9BjLp4$7uhWdY
+
+These are the credentials
+
+<img src="https://imgur.com/tyNfqXl.png"/>
+
+Now for the CVE
+
+<img src="https://imgur.com/BRmcbDq.png"/>
+
+So we have found the exploit which is authenticated RCE and it is  a metasploit exploit
+
+<img src="https://imgur.com/PzUaNa4.png"/>
+
+<img src="https://imgur.com/avv0XU5.png"/>