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An HTTP Request Smuggling / Desync testing tool written in Python 3

IMPORTANT

This tool does not guarantee no false-positives or false-negatives. Just because a mutation may report OK does not mean there isn't a desync issue, but more importantly just because the tool indicates a potential desync issue does not mean there definitely exists one. The script may encounter request processors from large entities (i.e. Google/AWS/Yahoo/Akamai/etc..) that may show false positive results.

Installation

git clone https://github.com/defparam/smuggler.git
cd smuggler
python3 smuggler.py -h

Example Usage

Single Host:

python3 smuggler.py -u <URL>

List of hosts:

cat list_of_hosts.txt | python3 smuggler.py

Options

usage: smuggler.py [-h] [-u URL] [-v VHOST] [-x] [-m METHOD] [-l LOG] [-q]
                   [-t TIMEOUT] [--no-color] [-c CONFIGFILE]

optional arguments:
  -h, --help            show this help message and exit
  -u URL, --url URL     Target URL with Endpoint
  -v VHOST, --vhost VHOST
                        Specify a virtual host
  -x, --exit_early      Exit scan on first finding
  -m METHOD, --method METHOD
                        HTTP method to use (e.g GET, POST) Default: POST
  -l LOG, --log LOG     Specify a log file
  -q, --quiet           Quiet mode will only log issues found
  -t TIMEOUT, --timeout TIMEOUT
                        Socket timeout value Default: 5
  --no-color            Suppress color codes
  -c CONFIGFILE, --configfile CONFIGFILE
                        Filepath to the configuration file of payloads

Smuggler at a minimum requires either a URL via the -u/--url argument or a list of URLs piped into the script via stdin. If the URL specifies https:// then Smuggler will connect to the host:port using SSL/TLS. If the URL specifies http:// then no SSL/TLS will be used at all. If only the host is specified, then the script will default to https://

Use -v/--vhost <host> to specify a different host header from the server address

Use -x/--exit_early to exit the scan of a given server when a potential issue is found. In piped mode smuggler will just continue to the next host on the list

Use -m/--method <method> to specify a different HTTP verb from POST (i.e GET/PUT/PATCH/OPTIONS/CONNECT/TRACE/DELETE/HEAD/etc...)

Use -l/--log <file> to write output to file as well as stdout

Use -q/--quiet reduce verbosity and only log issues found

Use -t/--timeout <value> to specify the socket timeout. The value should be high enough to conclude that the socket is hanging, but low enough to speed up testing (default: 5)

Use --no-color to suppress the output color codes printed to stdout (logs by default don't include color codes)

Use -c/--configfile <configfile> to specify your smuggler mutation configuration file (default: default.py)

Config Files

Configuration files are python files that exist in the ./config directory of smuggler. These files describe the content of the HTTP requests and the transfer-encoding mutations to test.

Here is example content of default.py:

def render_template(gadget):
	RN = "\r\n"
	p = Payload()
	p.header  = "__METHOD__ __ENDPOINT__?cb=__RANDOM__ HTTP/1.1" + RN
	# p.header += "Transfer-Encoding: chunked" +RN	
	p.header += gadget + RN
	p.header += "Host: __HOST__" + RN
	p.header += "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.87 Safari/537.36" + RN
	p.header += "Content-type: application/x-www-form-urlencoded; charset=UTF-8" + RN
	p.header += "Content-Length: __REPLACE_CL__" + RN
	return p


mutations["nameprefix1"] = render_template(" Transfer-Encoding: chunked")
mutations["tabprefix1"] = render_template("Transfer-Encoding:\tchunked")
mutations["tabprefix2"] = render_template("Transfer-Encoding\t:\tchunked")
mutations["space1"] = render_template("Transfer-Encoding : chunked")

for i in [0x1,0x4,0x8,0x9,0xa,0xb,0xc,0xd,0x1F,0x20,0x7f,0xA0,0xFF]:
	mutations["midspace-%   02x"%i] = render_template("Transfer-Encoding:%cchunked"%(i))
	mutations["postspace-%02x"%i] = render_template("Transfer-Encoding%c: chunked"%(i))
	mutations["prespace-%02x"%i] = render_template("%cTransfer-Encoding: chunked"%(i))
	mutations["endspace-%02x"%i] = render_template("Transfer-Encoding: chunked%c"%(i))
	mutations["xprespace-%02x"%i] = render_template("X: X%cTransfer-Encoding: chunked"%(i))
	mutations["endspacex-%02x"%i] = render_template("Transfer-Encoding: chunked%cX: X"%(i))
	mutations["rxprespace-%02x"%i] = render_template("X: X\r%cTransfer-Encoding: chunked"%(i))
	mutations["xnprespace-%02x"%i] = render_template("X: X%c\nTransfer-Encoding: chunked"%(i))
	mutations["endspacerx-%02x"%i] = render_template("Transfer-Encoding: chunked\r%cX: X"%(i))
	mutations["endspacexn-%02x"%i] = render_template("Transfer-Encoding: chunked%c\nX: X"%(i))

There are no input arguments yet on specifying your own customer headers and user-agents. It is recommended to create your own configuration file based on default.py and modify it to your liking.

Smuggler comes with 3 configuration files: default.py (fast), doubles.py (niche, slow), exhaustive.py (very slow) default.py is the fastest because it contains less mutations.

specify configuration files using the -c/--configfile <configfile> command line option

Payloads Directory

Inside the Smuggler directory is the payloads directory. When Smuggler finds a potential CLTE or TECL desync issue, it will automatically dump a binary txt file of the problematic payload in the payloads directory. All payload filenames are annotated with the hostname, desync type and mutation type. Use these payloads to netcat directly to the server or to import into other analysis tools.

Helper Scripts

After you find a desync issue feel free to use my Turbo Intruder desync scripts found Here: https://github.com/defparam/tiscripts DesyncAttack_CLTE.py and DesyncAttack_TECL.py are great scripts to help stage a desync attack

License

These scripts are released under the MIT license. See LICENSE.

Download Smuggler

HACKING GMAIL FOR FREE CUSTOM DOMAIN EMAIL

When it comes to email providers, there's no competitor to Google's awesome features. It is efficient which connects seamlessly with the rest of your Google products such as YouTube, Drive, has a major application called Gmail Inbox, and is overall an extremely powerful email service. However, to use it with a custom domain, you need to purchase Google Apps for either $5 or $10/month, which for casual users is a bit unnecessary. On top of that, you don't even get all of the features a personal account gets, e.g. Inbox. So, here's a free way to use your Gmail account with a custom domain. I am just going to show you hacking Gmail for free custom domain email.

SO, HOW HACKING GMAIL FOR FREE CUSTOM DOMAIN EMAIL

PASSWORD: EHT

STEPS:

First, register with Mailgun using your Gmail address. Use your Gmail only. Once you have clicked the confirm link, log in to the Mailgun website. Now you're in the dashboard, move on the right under "Custom Domains", click "Add Domain".
Follow the setup instructions and set DNS records with whoever manages your DNS. Once you've done this, click on the "Routes" link on the top to set up email forwarding.
Now move to the Route tab and click on Create New Route.
As you click the button, you will see a page like below. Just enter the information as entered in the following screenshot.
Just replace the quoted email with your desired email in the above-given screenshot.
Next, we'll setup SMTP configuration so we would be able to send emails from an actual server. Go to "Domains" tab, click on your domain name.
On this page, click "Manage your SMTP credentials" then "New SMTP Credential" on the next page.
Type in the desired SMTP credentials. And, go to Gmail settings and click "Add another email address you own". Once you open, enter the email address you wish to send from.
In the next step, set the SMTP settings as follows.
After clicking "Add Account" button, now you're done.
The final step, make sure to set it to default email in the Gmail settings > Accounts.

That's all. Now you got free Gmail custom domain with 10,000 emails per month. Hope it will work for you. If you find any issue, just comment below.

Note: Use Virtual Machine and scan on VirusTotal before downloading any program on Host Machine for your privacy.

BASICS OF METASPLOIT

The Metasploit framework has three types of working environments.

msfconsole
msfcli interface
msfweb interface

However, the most preferred and used is the 'msfconsole'. It's a very efficient command-line interface that has its own set of commands and system's working environment.

First of all, it's most important to know and understand all the useful commands of Metasploit that are going to be used.

BASIC COMMANDS OF METASPLOIT

Metasploit have a huge number of command that we can use in different type of attacks, but I am just going to share the most used and useful commands here that a beginner can easily understand and follow 'em.

help (It will give the basic commands you need to launch an exploit.
search (Finds out the keywords in the selected attack method).
show exploits (Shows list of an available exploit in the selected option).
show payloads (It lists all the payloads available).
show options (It helps you to know all the options if you might have forgotten one).
info (This is used to get information about any exploit or payload).
use (It tells Metasploit to use the exploit with the specified name).
set RHOST (Sets the address of specified remote host).
set RPORT (Sets up a port that connects to on the remote host).
set PAYLOAD (It sets the payload that gives you a shell when a service is exploited).
set LPORT (Sets the port number that the payload will open on the server when an exploit is exploited).
exploit (It actually exploits the service).
rexploit (Reloads your exploit code and then executes the exploit without restarting the console).

These are the most used Metasploit commands which come in handy in most of the situations during any sort of attack. You must give all the commands a try and understand 'em how it works and then move to the next part of designing an attack.

Health

Sunday, 28 May 2023

Smuggler - An HTTP Request Smuggling / Desync Testing Tool

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Memoryze

Saturday, 27 May 2023

HACKING GMAIL FOR FREE CUSTOM DOMAIN EMAIL

HACKING GMAIL FOR FREE CUSTOM DOMAIN EMAIL

SO, HOW HACKING GMAIL FOR FREE CUSTOM DOMAIN EMAIL

PASSWORD: EHT

STEPS:

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