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A default credential scanner.

About
Getting default credentials added to commercial scanners is often difficult and slow. changeme is designed to be simple to add new credentials without having to write any code or modules.
changeme keeps credential data separate from code. All credentials are stored in yaml files so they can be both easily read by humans and processed by changeme. Credential files can be created by using the ./changeme.py --mkcred tool and answering a few questions.
changeme supports the http/https, mssql, mysql, postgres, ssh, ssh w/key, snmp, mongodb and ftp protocols. Use ./changeme.py --dump to output all of the currently available credentials.
You can load your targets using a variety of methods, single ip address/host, subnet, list of hosts, nmap xml file and Shodan query. All methods except for Shodan are loaded as a positional argument and the type is inferred.

Installation
changeme has only been tested on Linux and has known issues on Windows and OS X/macOS. Use docker to run changeme on the unsupported platforms.
Stable versions of changeme can be found on the releases page.
For mssql support, unixodbc-dev needs to be installed prior to installing the pyodbc.
PhantomJS is required in your PATH for HTML report screenshots.
Use pip to install the required python modules: pip install -r requirements.txt

Docker
A convenient way of running changeme is to do so inside a Docker container. You can run a pre-built container from Docker Hub, or build your own using the instructions below.

Run changeme in Docker
  1. Download the container: docker pull ztgrace/changeme
  2. Run the container: docker run -it ztgrace/changeme /bin/bash

Build from Dockerfile
  1. Build the docker container: docker build -t changeme .
  2. Run changeme from inside the container: `docker run -it changeme /bin/bash'

Usage Examples
Below are some common usage examples.
  • Scan a single host: ./changeme.py 192.168.59.100
  • Scan a subnet for default creds: ./changeme.py 192.168.59.0/24
  • Scan using an nmap file ./changeme.py subnet.xml
  • Scan a subnet for Tomcat default creds and set the timeout to 5 seconds: ./changeme.py -s 192.168.59.0/24 -n "Apache Tomcat" --timeout 5
  • Use Shodan to populate a targets list and check them for default credentials: ./changeme.py --shodan_query "Server: SQ-WEBCAM" --shodan_key keygoeshere -c camera
  • Scan for SSH and known SSH keys: ./changeme.py 192.168.59.0/24 --protocols ssh,ssh_key
  • Scan a host for SNMP creds using the protocol syntax: ./changeme.py snmp://192.168.1.20

changeme - A Default Credential Scanner


Habu is to teach (and learn) some concepts about Python and Network Hacking.
These are basic functions that help with some tasks for Ethical Hacking and Penetration Testing.
Most of them are related with networking, and the implementations are intended to be understandable for who wants to read the source code and learn from that.

Some techniques implemented in the current version are:
  • ARP Poisoning
  • ARP Sniffing
  • DHCP Discover
  • DHCP Starvation
  • LAND Attack
  • SNMP Cracking
  • SYN Flooding
  • TCP Flags Analysis
  • TCP ISN Analysis
  • TCP Port Scan


Installation
To install Habu, simply:
$ pip3 install habu


Dependencies
Habu requires:
  • Click
  • Python (3.x),
  • Scapy-Python3
  • Matplotlib (Optional, only needed if you want to make some graphs)


Get Help
All the commands implement the option '--help', that shows the help, arguments, options, and default values.


Verbose Mode
Almost all commands implement the verbose mode with the '-v' option. This can give you some extra info about what habu is doing.


habu.arpoison: ARP Poisoning
This command sends ARP 'is-at' packets to each victim, poisoning their ARP tables for send the traffic to your system.
$ sudo habu.arpoison 192.168.1.5 192.168.1.6
Ether / ARP is at 00:c2:c6:30:2c:58 says 192.168.1.6
Ether / ARP is at 00:c2:c6:30:2c:58 says 192.168.1.5
Ether / ARP is at 00:c2:c6:30:2c:58 says 192.168.1.6
Ether / ARP is at 00:c2:c6:30:2c:58 says 192.168.1.5
...
Note: If you want a full working Man In The Middle attack, you need to enable the packet forwarding on your operating system to act like a router. You can do that using:
echo 1 > /proc/sys/net/ipv4/ip_forward


habu.arpsniff: Discover devices on your LAN capturing ARP packets
This command listen for ARP packets and shows information each device.
Columns: Seconds from last packet | IP | MAC | Vendor
1   192.168.0.1         a4:08:f5:19:17:a4   Sagemcom Broadband SAS
7   192.168.0.2         64:bc:0c:33:e5:57   LG Electronics (Mobile Communications)
2   192.168.0.5         00:c2:c6:30:2c:58   Intel Corporate
6   192.168.0.7         54:f2:01:db:35:58   Samsung Electronics Co.,Ltd


habu.contest: Check your connection capabilities
This command tries to connect to various services and check if you can reach them using your internet connection.
$ habu.contest
IP:    True
DNS:   True
FTP:   True
SSH:   True
HTTP:  True
HTTPS: True


habu.dhcp_discover: Discover DHCP servers
This command send a DHCP request and shows what devices has replied. Using the '-v' parameter (verbose) you can see all the options (like DNS servers) included on the responses.
$ sudo habu.dhcp_discover
Ether / IP / UDP 192.168.0.1:bootps > 192.168.0.5:bootpc / BOOTP / DHCP


habu.dhcp_starvation: Fill the DHCP leases
This command send multiple DHCP requests from forged MAC addresses to fill the DHCP server leases. When all the available network addresses are assigned, the DHCP server don't send responses. So, some attacks, like DHCP spoofing can be made.
$ sudo habu.dhcp_starvation
Ether / IP / UDP 192.168.0.1:bootps > 192.168.0.6:bootpc / BOOTP / DHCP
Ether / IP / UDP 192.168.0.1:bootps > 192.168.0.7:bootpc / BOOTP / DHCP
Ether / IP / UDP 192.168.0.1:bootps > 192.168.0.8:bootpc / BOOTP / DHCP


habu.eicar: Prints the EICAR test string
This command prints the EICAR test string that can be used to test antimalware engines. More info: http://www.eicar.org/86-0-Intended-use.html
$ habu.eicar
X5O!P%@AP[4\XZP54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*
Note: The below string is incorrect because is not a good idea write the complete in this text file. Some antivirus program can be detect it like a virus. :)


habu.hasher: Computes various hashes with the input data
This command computes various hashes for the input data, that can be a file or a stream.
If the filename is '-', the data is taken from the standard input (stdin) so, three different variants exists to call this command:
$ habu.hasher README.rst
md5  : 375375d9cfb2aacab7c8d1a9afd3d9b7
sha1 : 21c67b9ef44bc24d47eef6adab648ba34662927e

$ cat README.rst | habu.hasher -
md5  : 375375d9cfb2aacab7c8d1a9afd3d9b7
sha1 : 21c67b9ef44bc24d47eef6adab648ba34662927e

$ habu.hasher - < README.rst
md5  : 375375d9cfb2aacab7c8d1a9afd3d9b7
sha1 : 21c67b9ef44bc24d47eef6adab648ba34662927e
Note: The output above shows only MD5 and SHA1 to make it short, but the real output includes more algorithms.
You can also specify which algorithm to use. In such case, the output is only the value of the calculated hash:
$ habu.hasher -a md5 README.rst
375375d9cfb2aacab7c8d1a9afd3d9b7


habu.ip: Prints your current public IP
This command prints your current public IP based on the response from https://api.ipify.org.
$ habu.ip
182.26.32.246


habu.isn: Prints the TCP sequence numbers for an IP
This command creates TCP connections and prints the TCP initial sequence numbers for each connections.
$ sudo habu.isn www.portantier.com
1962287220
1800895007
589617930
3393793979
469428558
You can get a graphical representation (needs the matplotlib package) using the '-g' option:
$ sudo habu.isn -g -c 10 www.portantier.com
Note: The above command uses '-c' option to define that 10 connections must be created.


habu.land: Implements the LAND attack
This command implements the LAND attack, that sends packets forging the source IP address to be the same that the destination IP. Also uses the same source and destination port.
The attack is very old, and can be used to make a Denial of Service on old systems, like Windows NT 4.0. More information here: https://en.wikipedia.org/wiki/LAND
sudo habu.land 172.16.0.10
............
Note: Each dot (.) is a sent packet. You can specify how many packets send with the '-c' option. The default is never stop. Also, you can specify the destination port, with the '-p' option.


habu.ping: ICMP echo requests
This command implements the classic 'ping' with ICMP echo requests.
$ sudo habu.ping 8.8.8.8
IP / ICMP 8.8.8.8 > 192.168.0.5 echo-reply 0 / Padding
IP / ICMP 8.8.8.8 > 192.168.0.5 echo-reply 0 / Padding
IP / ICMP 8.8.8.8 > 192.168.0.5 echo-reply 0 / Padding
IP / ICMP 8.8.8.8 > 192.168.0.5 echo-reply 0 / Padding


habu.snmp_crack: SNMP Community Cracker
This command launches snmp-get queries against an IP, and tells you when finds a valid community string (is a simple SNMP cracker).
The dictionary used is the distributed with the onesixtyone tool (https://github.com/trailofbits/onesixtyone)
$ sudo habu.snmp_crack 179.125.234.210
Community found: private
Community found: public
Note: You can also receive messages like <UNIVERSAL> <class 'scapy.asn1.asn1.ASN1_Class_metaclass'>, I don't know how to supress them for now.


habu.synflood: SYN Flood Attack Implementation
This command launches a lot of TCP connections and keeps them opened. Some very old systems can suffer a Denial of Service with this. More info: https://en.wikipedia.org/wiki/SYN_flood
$ sudo habu.synflood 172.16.0.10
.................
Each dot is a packet sent.
You can use the options '-2' and '-3' to forge the layer 2/3 addresses. If you use them, each connection will be sent from a random layer2 (MAC) and/or layer3 (IP) address.
You can choose the number of connections to create with the option '-c'. The default is never stop creating connections.
Note: If you send the packets from your real IP address and you want to keep the connections half-open, you need to setup for firewall to don't send the RST packets. With habu, you can do this with the following command (only works with Linux+IPTables):
$ sudo habu.firewall --no-rst
You can check the results with "iptables -L -n", and you will see something like this:
Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0            tcp flags:0x04/0x04


habu.tcpflags: TCP Flag Fuzzer
This command send TCP packets with different flags and tell you what responses receives.
It can be used to analyze how the different TCP/IP stack implementations and configurations responds to packet with various flag combinations.
$ sudo habu.tcpflags www.portantier.com
S  -> SA
FS -> SA
FA -> R
SA -> R
By default, the command sends all possible flag combinations. You can specify with flags must ever be present (reducing the quantity of possible combinations), with the option '-f'.
Also, you can specify which flags you want to be present on the response packets to show, with the option '-r'.
With the next command, you see all the possible combinations that have the FIN (F) flag set and generates a response that contains the RST (R) flag.
$ sudo habu.tcpflags -f F -r R www.portantier.com
FPA  -> R
FSPA -> R
FAU  -> R


habu - Network Hacking Toolkit

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