Description
The Simple LAN Scanner is a very simple LAN scanner written in Python. It scans the local network and tries to give you the MAC and IP addresses of the discovered running systems. Furthermore it creates a small log file at the end of the scan.

Usage
sudo ./simple_lan_scan.py –network=<your network>

Usage example
sudo ./simple_lan_scan.py –network=192.168.1.0/24

Installation
Make sure you install the package python-scapy before you run the Simple LAN Scanner.

Feature list
- Tries to give you the MACs and IPs of discovered running systems.
- Creates a small log file.

Some notes
- Tested with Python 2.6.5.
- Modify, distribute, share and copy the code in any way you like!
- Please note that this tool was created for educational purposes only.
- Power to teh c0ws!

Description
The Simple Local File Inclusion Vulnerability Scanner helps you to find LFI vulnerabilities.

Usage
./lfi_scanner.py –url=

Usage example
./lfi_scanner.py –url=”http://www.example.com/page.php?file=main”

Usage notes
- Always use http://….
- This tool does not work with SEO URLs, such as http://www.example.com/news-about-the-internet/.
- If you only have a SEO URL, try to find out the real URL which contents parameters.

Feature list
- Provides a random user agent for the connection.
- Checks if a connection to the target can be established.
- Tries to catch most errors with error handling.
- Contains a LFI vulnerability scanner.
- Finds out how a possible LFI vulnerability can be exploited (e.g. directory depth).
- Supports nullbytes!
- Supports common *nix targets, but no Windows systems.

Known issues
- This tool is only able to handle “simple” LFI vulnerabilities, but not complex ones.
- Like most other LFI scanners, this tool here also has trouble with handling certain server responses.

Some notes
- Tested with Python 2.6.5.
- Modify, distribute, share and copy the code in any way you like!
- Please note that this tool was created for educational purposes only.
- Do not use this tool in an illegal way. Know and respect your local laws.
- Only use this tool for legal purposes, such as pentesting your own website
- I am not responsible if you cause any damage or break the law.
- Power to teh c0ws!

Screenshot

Simple Local File Inclusion Vulnerability Scanner screenshot

With great pleasure I hereby announce the availability of the new “The Joomla Hacking Compendium”. It contains almost 1000 lines of pure knowledge and shows you the way to hack and protect Joomla.

It contains the following chapters:

0x01 - Purpose of this document
0x02 - Introduction
0x03 - The Basics of Joomla
0x04 - The Joomla core
0x05 - Joomla extensions
0x06 - Hacking Joomla
0x07 - SEO, our strongest enemy
0x08 - Examples for Joomla SQL injections
0x09 - Examples for Joomla local file inclusions
0x10 - Examples for Joomla remote file inclusions
0x11 - Examples for Joomla XSSs/CSRFs
0x12 - How to protect your Joomla
0x13 - Conclusion and a look at Joomla's feature
0x14 - How to stay informed (or: the latest vulnerabilities)
0x15 - Useful tools
0x16 - Greetings and THX

Please find an excerpt below:

::
:: 0x04 - The Joomla core
::

Before inspecting the Joomla component attack vendors we first have a
look at the core.

Download Joomla somewhere and extract all files. Open the file
libraries/phpinputfilter/inputfilter.php
and look at the code:
----------------------------------------
var $tagsArray; // default = empty array
var $attrArray; // default = empty array

var $tagsMethod; // default = 0
var $attrMethod; // default = 0

var $xssAuto; // default = 1
var $tagBlacklist = array ('applet', 'body', 'bgsound' [...]
var $attrBlacklist = array ('action', 'background'     [...]
----------------------------------------

As you can see, some filter methods of Joomla are based on blacklisting.
This knowledge can be used later to exploit potential vulnerabilities in
a better way. I find this method not very effective, btw.

While HTML tags containing "body" or "bgsound" will be filtered out
at input fields or URL parameters, they can be written in many ways,
e.g. like "bOdY" or "b o DY" etc. You are only limited by your
creativity and will find ways for tricking the blacklist of the
Joomla framework.

Another interesting part is this one (same file):
----------------------------------------
/*
* Is there a tag? If so it will certainly start with a '<'
*/
$tagOpen_start  = strpos($source, '<');
while ($tagOpen_start !== false)
{
/*
* Get some information about the tag we are processing
*/
$preTag            .= substr($postTag, 0, $tagOpen_start);
$postTag                = substr($postTag, $tagOpen_start);
----------------------------------------

As you can see they assume that an HTML tag being used in XSS attacks
starts with a "<". In fact, I never use this character and many
XSS cheatsheets suggest this, too. With this information in mind,
you can most likely avoid being detected by the filters. You can start
your XSS string with "><tag... for example.

If you want to you can continue looking. You will find other filter
methods and, at the end of the file, there are also built in
mechanics which should help to prevent SQL injection vulnerabilities:
[...]

Just visit the “My Tools” section for the download link.

Description
The Simple Local File Inclusion Exploiter helps you to exploit LFI vulnerabilities. After you found one, simply pass the URL of the affected website and the vulnerable parameter to this tool. You can also use this tool to scan a parameter of an ULR for a LFI vulnerability.

Usage
./lfi_sploiter.py –exploit-url= –vulnerable-parameter=

Usage example
./lfi_sploiter.py –exploit-url=http://www.example.com/page.php?file=main –vulnerable-parameter=file

Usage notes
- Always use http://….
- When you pass a vulnerable parameter, this tool assumes that it is really vulnerable.
- If you do not know if a parameter is vulnerable, simply pass it to this script and let the scanner have a look.
- Only use one vulnerable parameter at once.
- This tool does not work with SEO URLs, such as http://www.example.com/news-about-the-internet/.
- If you only have a SEO URL, try to find out the real URL which contents parameters.

Feature list
- Provides a random user agent for the connection.
- Checks if a connection to the target can be established.
- Tries catch most errors with error handling.
- Contains a LFI scanner (only scans one parameter at once).
- Finds out how a LFI vulnerability can be exploited (e.g. directory depth).
- Supports nullbytes!
- Exploit features: Dumps a list of interesting files to your hard disk.
- Supports common *nix targets, but no Windows systems.

Known issues
- I know there is more about LFI than it is covered in this tool. But this is the first release,
and more features will be implemented in future versions.
- This tool is only able to handle “simple” LFI vulnerabilities, but not complex ones. For example: Some LFI vulnerabilities consist of two URL parameters or require to find a way around filters. In those cases, this tool unfortunately does not work.
- Like most other LFI exploiter / scanner, this tool here also has problems with handling certain server responses. So this tool does not work with every website.

Some notes
- Tested with Python 2.6.5.
- Modify, distribute, share and copy the code in any way you like!
- Please note that this tool was created for educational purposes only.
- Do not use this tool in an illegal way. Know and respect your local laws.
- Only use this tool for legal purposes, such as pentesting your own website
- I am not responsible if you cause any damage or break the law.
- Power to teh c0ws!

Screenshot

Simple Local File Inclusion Exploiter screenshot

It contains all the features from the first released version 0.3 and now contains – in addition – a column fuzzer. Simply start a scan by using python sqli_scanner.py -u “target” and then start fuzzing by using the parameter -fuzz “exploit url”. The exploit url will be provided by the scanner (when a vulnerability was found).

View the changelog here.

Download it here.

According to the changelog not many things were changed.

This little tutorial will show Debian/Ubuntu users how to install it and perform the first test.

I. Introduction

Tools like Nessus and Nmap are indispensable when it comes down to security assessment and penetration testing. Many researchers have to rely on those tools in order to find weaknesses in websites/web apps.

But like it is often the case, every application got it’s disadvantages.Especially in the area of vulnerability detection it is very hard to determine which tool is the best one.

On the 18th March 2010 Google entered the “market” and tries to deliver a very fast but comprehensive vulnerability scanner. “Skipfish” is free, coded in C, very fast, doesn’t need many resources, achieves more than 2000 requests per second, opens up to 100 simultaneous TCP connections, creates decent reports and even reveals vulnerabilities in popular web apps which haven’t been found yet.

Link: http://code.google.com/p/skipfish/

For me this sounds great, so I decided to give it a try.

II. Downloading and installing

I assume that you got a Debian/Ubuntu box and some time. Some of the commands may require “sudo”, but you are already familiar with your OS and know what to do

Let’s install some required packages first:

apt-get install libidn11-dev make gcc libssl-dev

Now we download the app:

wget http://skipfish.googlecode.com/files/skipfish-1.33b.tgz

tar xfvz skipfish-1.33b.tgz

make

Skipfish is now ready to be launched, but let’s provide the tool with a dictionary first:

cp dictionaries/default.wl skipfish.wl

III. Running Skipfish

Ok, time to start!
./skipfish -o /home/your-target http://www.your-target.tld

As you can see here, one of my small machines is heavy occupied because of the test:

In the test I did for this little tutorial, I had thousands of request sent after a few minutes.. after 5 minutes, only like 3,3 % percent of the whole scan was completed. Jesus!  

Furthermore my little VPS was in the same state like it was being DoSed.

=> Skipfish really can small down a Linux box if the machine is small and not very well optimized.

Well, let’s cancel the test after a few minutes and have a look at the report:

In my eyes, this is a very well generated report.

IV. Some additional words

Well, the best would be if you play around a little bit and have a look at all the options:

./skipfish -h

According to many comments (which you are able to find through Google) Skipfish doesn’t find all obvious vulnerabilities, like SQL injection or XSS.  In my tests, quite the contrary was the case. Google’s Skipfish even found some vulnerabilities in some well known web apps which haven’t been discovered or published yet.

I will definitely use this tool for future penetration tests and my vulnerability research, and of course I highly recommend that you do the same

V. Sources

http://www.redspin.com/blog/2010/03/19/installing-google-skipfish-on-ubuntudebian/

http://questions.securitytube.net/questions/546/is-skipfish-really-so-different-from-nessus-appscan-and-others