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TONBI is a source code auditing scanner against framework based web application. It hunts for various vulnerabilites in such as Laravel, Codeigniter, Django, Flask, Rails , etc ... It's simple, easy, and intuitive! It gives the most efficient code auditing method especially for security researchers and also all the web application developers.

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TONBI

1. What's TONBI?

TONBI is a source code auditing scanner against framework based web application. It hunts for various vulnerabilites in such as Laravel, Codeigniter, Django, Flask, Rails , etc ... It's simple, easy, and intuitive! It gives the most efficient code auditing method especially for security researchers and also all the web application developers.

Frameworks

Supporting laravel, codeigniter, django, flask, gorilla, ethna, nodejs, rails
Planning symfony, fuelphp, cakePHP, silex, phalcon, express

Languages

Supporting go, php, javascript, python, typescript, ruby
Planning jsp, asp, java, .NET

Viewes

Supporting smarty, twig, blade, flexy, electron, slim
Planning react

2. Install

Download tonbi from github

git clone http://github.com/truefinder/tonbi.git 

Install yara-python

$ pip install yara-python

But you can also get the source from GitHub and compile it yourself:

$ git clone --recursive https://github.com/VirusTotal/yara-python
$ cd yara-python
$ python setup.py build
$ sudo python setup.py install

Notice the --recursive option used with git. This is important because we need to download the yara subproject containing the source code for libyara (the core YARA library). It’s also important to note that the two methods above link libyara statically into yara-python. If you want to link dynamically against a shared libyara library use:

$ python setup.py build --dynamic-linking

3. Usage

$python tonbi.py -d SOURCE_DIR -f YOUR_FRAMEWORK -l YOUR_LANGUAGE -v YOUR_VIEW 

Options

Usage: tonbi.py [options] args

Options:
  -h, --help            show this help message and exit
  -c CONFIG, --config=CONFIG
                        set configuration file  ex) -c config.json
  -d DIRECTORY, --directory=DIRECTORY
                        set source directory ex ) -d /src
  -l LANGUAGE, --language=LANGUAGE
                        set language  ex) -l php
  -f FRAMEWORK, --framework=FRAMEWORK
                        set framework  ex) -p laravel
  -v VIEW, --view=VIEW  set render or view ex) -v smarty

  Output Options:
    -o OUTPUT, --output=OUTPUT
                        save result into file ex) -o output.txt
    -e EXCLUDE, --exclude=EXCLUDE
                        exclude some vulnerability ex) -e 'ssl_misconfiguration'
    --head=HEAD         show above lines ex) --head 5
    --tail=TAIL         show below lines ex) --tail 5

  Debug Options:
    -D, --debug         debug mode output of dbg_print

4. Config File

Write your own configuration file

config.json looks like this

{
	"source_directory" : "../sample/codeigniter/src",
	"framework_name" : "codeigniter",
	"language" : "php", 
	"view_name" : "twig",
	"head_count" : 5,
	"tail_count" : 5,
	"output" : "output.txt",
	"plugins" : [  ],
	"ignore_files" :  [ "jpg", "png", "jpeg", "ico", "gif", "tif" , "tiff", "bmp",  "db", "css", "map", "md", "gitkeep", "sql", "DS_Store", "js", "propreties" , "csv", "gz", "tgz", "zip", "swf", "pyc", "phar" ], 
	"ignore_dirs" : ["node_modules"],
	"exclude" : ["ssl_misconfiguration"] 
}

Run tonbi with config file

$python tonbi.py -c config.json 

Config Variables

Name Description
source_directory (*) source code directory
framework_name (*) framework
language (*) language
view_name view template
head_count it shows above lines (default :3)
tail_count it shows below lines (default :3)
output it prints result out into filename
plugins it loads plugins under /plugin
ignore_files it ignores files which are not related with source code
ignore_dirs it ignores directories which you don't want to scan
exclude it exculdes vulnerabilities that you already knew

(*) thies variables are essential in your config file

5. Rules

How to add your own rules

Add your own rules for your findings (for example : framework)

vi  framework/<framework_name>.yar
/* please read yara rule page  
 * https://yara.readthedocs.io/en/stable/writingrules.html
 */  

rule my_xss : <framework_name>  
{
    strings : 
        $xss1 = /render(.*false/ 
        $xss2 = /autoescape.*false/ nocase 
    condition:
        $xss1 or $xss2 
}

6. Plugins

How to write your own plugin

Please create plugin file under /plugin directory

mkdir plugin/your_plugin
cat > plugin/your_plugin/your_plugin.py

And, please write class MyPlugin define three functions init(), audit(), finish()

class MyPlugin :
    def init(self):
        # firstly loaded 
    def audit(self, audititem):
        # called by every line 
	# audititem (class AuditItem) parametered to your audit()     
        #    .line <= (string) target string 
        #    .i <= (int) target line number 
        #    .filename <= (string) target filename  
        #    .lines <= (string) use this reference lines when you find out something  
        #    .output <= (Class Output) for your result, use output.list.append("your string") 
                    
    def finish(self)
        # please clear all resources when finished 

7.Result

==============================================
filename : ../targets/laravel/XXXX-Server/app/Libs/ImageMagic/Convert.php
dangerous php function : cmd_excute
dangerous matches : exec(
tag : php
==============================================
35:      * @return int
36:      */
37:     protected function executeCommand(string $command)
38:     {
39:         Log::debug(__METHOD__ . ' : ' . $command);
40:         exec($command .' 2>&1',$array, $code);
41:         if ($code !== 0) {
42:             // error
43:             $errorMsg = implode($array, "\n");
44:             Log::error(__METHOD__ . ' Convert failed. code: ' . $code);
45:             Log::error($errorMsg);
==================================================
filename : ../targets/laravel/ZZZZZ-server/resources/views/webview/information/index.blade.php
vulnerability : xss
matches : {!! $detail["information"] !!}
tag : laravel
=================================================
140:           @else
141:             <span id="info_new">NEW</span><br>
142:           @endif
143: 
144: 
145:           <span>{!! $detail["information"] !!}</span>
146:         </div>
147:       </a>
148:     </li>
149:     @endforeach
150:   </ul>



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TONBI is a source code auditing scanner against framework based web application. It hunts for various vulnerabilites in such as Laravel, Codeigniter, Django, Flask, Rails , etc ... It's simple, easy, and intuitive! It gives the most efficient code auditing method especially for security researchers and also all the web application developers.

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