Longjing - Deep Learning Driven Web Application Firewall

Longjing is Chinese green tea and full of antioxiants. It is good for health and to fight against cancer. Longjing Web Application Firewall (WAF) is deep learning driven and developed with Python 3 and Scikit-Learn library. To define it as deep learning is that it uses neural network MLP Classifier to build the model. Even it is a simple neural network MLP classifier, the accuracy rate is very high. It supports Linux system only.

Longjing WAF is mainly design to protect the web applications from being attacked by SQL Injection (SQLi) which is at the top of OWASP Top 10 in 2017. If successfully attacked, data leakage and/or system compromised will be caused. It is a critical vulnerability for web applications.

Longjing WAF is well tested on Damn Vulnerable Web Application (DVWA) with Burp Suite, SQLMap, OWASP ZAP, XSSER and Commix. Not only detects SQLi but also XSS (Cross-site Scripting). The accuracy rate is over 99% under the samples testing. It can be further tune for the false positive easily as the running code is an open source project that released under GPLv3 by Samiux. However, the training data and modelling are not open sourced.

It is not very complicate to install and deploy it. The latest version as at this writing is version 0.9.1. It works with Anaconda 3 and MitmProxy 3.0.3. Anaconda will install all required SciKit-Learn Python Libraries for you and it is also very easy to maintain. MitmProxy will act as a proxy to deal with the HTTP/HTTPS requests and responses.

Longjing is the next generation Web Application Firewall! Fetch it and try!

That's all! See you.


Reference

Longjing - Web Application Firewall

Longjing - Machine Learning Driven Web Application Firewall

Longjing is Chinese green tea with a lot of antioxiants. It is good for health. Longjing Web Application Firewall (WAF) is machine learning driven and it is designed to protect the web application from being attacked by SQL injection.

Longjing WAF is written in Python and It is not designed for the high performance in mind. Only Linux is supported.

Longjing WAF can protect your web application from being scanned by Burp Suite, SQLMap, OWASP ZAP, XSSER and Commix even your web application has SQL injection vulnerability. Meanwhile, reflected Cross Site Scripting (XSS) can be detected too.

SQL injection is on the top position of the OWASP Top 10 2017 which can lead to data leakage and/or system compromised. It is a critical vulnerability.

Longjing WAF is a PARTIALLY Open Source Project under GPLv3 License by Samiux. Training and Modelling are NOT open sourced. Demo may be provided when necessary.

The training requires about 3 hours on Intel i7-5500U with 16GB RAM. The accuracy rate is over 99%. The Longjing requires about 3GB RAM to run.

Requirement

- Ubuntu Linux Server 16.04.4 LTS
- Anaconda3
- mitmproxy
- web server
- web application
- SSD is recommended
- at least 8GB RAM

Installation

(A) Install Anaconda

sudo apt install build-essential libssl-dev libffi-dev python3-dev

wget https://repo.continuum.io/archive/Anaconda3-5.1.0-Linux-x86_64.sh

chmod +x Anaconda3-5.1.0-Linux-x86_64.sh

sudo -sH

./Anaconda3-5.1.0-Linux-x86_64.sh

install anaconda3 to /etc/anaconda3 and then answer "yes" to allow change the .bashrc of root.

source /root/.bashrc

(B) Update Anaconda

sudo -sH
conda update --prefix /etc/anaconda3 anaconda
conda update -n base conda

(B) Install mitmproxy

sudo -sH
conda install pip
pip install mitmproxy

The current version of mitmproxy at this writing is 3.0.3.

Exit to normal user by entering exit.

(C) Update mitmproxy

sudo -sH
cd /etc/anaconda3
pip install mitmproxy --upgrade

(D) Install Longjing

wget https://www.infosec-ninjas.com/files/longjing-0.8.0.tar.gz
tar -xvzf longjing-0.8.0.tar.gz

cd longjing

nano config.conf

where :
- NET_INF is the network interface of the mitmproxy to be listening
- PORT is port number of the mitmproxy to be listening, e.g. 8080
- CERT is the location path of the private key TLS/SSL certificate of the domain when available. It should be starting with --certs.

Please read mitmproxy "about certificate" documents for details - Using a custom certificate.

sudo ./install.sh

Finally, make sure to copy index.html to the web application root directory.

(D) Running

sudo systemctl restart longjing.service

(E) Testing with Tools

Longjing is well tested on Damn Vulnerable Web Application (DVWA) with the following tools :

- Burp Suite on DVWA (sqli and xss blocked except DOM)
- sqlmap on DVWA (tamper also blocked)
- OWASP ZAP on DVWA (sqli and xss blocked)
- xsser on DVWA (xss blocked)
- Commix on DVWA (blocked and Commix will hang in the middle)

That's all! See you.

[RESEARCH] Information Security Scammers?

What Attracted Me

Recently, Nexus Guard and Zenedge catch my eyes. They provide similar products/services, such as DDoS Protection by Content Delivery Network (CDN) and Web Application Firewall (WAF).

Nexus Guard website saying that they are the leader in the market :

"As a longtime leader in DDoS defense, Nexusguard is at the forefront of the fight against malicious Internet attacks, protecting organizations worldwide from threats to their websites, services, and reputations."

Zenedge website provides a free vulnerability and threat assessment for their potential clients :

"The report is produced by our team of cybersecurity experts bring a collective 200 years of cybersecurity experience and have been responsible for mitigating some of the largest attacks. Ever."

Basic and Fast Research

I wonder why there are so many CDN providers recently. CDN requires a lot of proxies around the world in order to absorb very large amount of DDoS traffic. They need to invest a lot on the infrastructure. Therefore, I did some basic and fast research on them.

I find out that they both use Let's Encrypt free SSL/TLS certificates on their official websites. Meanwhile, their official websites are hosting (or domains hosting on proxy) on akamaitechnologies.com.

I further find out that akamaitechnologies.com is registered by akamai.com - Akamai. Akamai provides CDN and cloud computing services which is including WAF. She is one of the famous CDN and WAF providers in the market since 1998. I confirmed that akamai.com is hosting (or hosting the domain on the proxy) on akamaitechnologies.com too on different IP address/subnet with Nexus Guard and Zenedge. Meanwhile, Nexus Guard and Zenedge are in the same subnet.

Nexus Guard

Nexus Guard conducted an unprofessional research on Android TV boxes with 3 popular anti-virus programs, such as Dr. Web and ESET in July 2014 and posted on a Hong Kong local magazine - East Week Vol. 568. They just posted the results of the scanning and misled the readers that some Android TV boxes are vulnerable to so-called backdoors. However, they did not confirm if the so-called backdoors are exploitable or not.

Nexus Guard also released an article about DDoS in May 2016 where they mentioned that DDoS by NTP is on the top of the list of the attacks. However, it seems that they do not know that the NTP attacks at that time is because of the zero day vulnerability on NTP protocol.

Most of their reports, threat advisories and whitepapers are restate the information security news that are all available in the public. Thinking of writing so many reports, threat advisories and whitepapers will make them more looking like a professional information security firm?

Zenedge

Since Zenedge provides free vulnerability and threat assessment on their website, I tried to contact the sales agent on the Zenedge site and he redirect me to contact Nelson Chen who is CISSP, CISA, CISM and Director Security Solutions of Zenedge. I requested a free vulnerability and threat assessment on my personal site on April 10, 2017 via direct email with Nelson. However, I did not have any reply from him since then (3 days at the time of this writing).

That make me thinking that they are pretending to provide free service in order to obtain information of their potential clients for their promotion purpose? Or, Neslon is thinking too much when an infosec (information security) guy is approaching them as they are thinking that their customers should be noob? Or, they do not have any professional infosec guy to do assessment on my personal site? Or, my personal site is too lame that they disdain to do the job?

Questions in Mind

If Nexus Guard and Zenedge have their own CDN and products/services, why their official websites are hosting (or hosting the domains on proxy) on Akamai? They do not believe that their products/services are better than Akamai? Nexus Guard and Zenedge are resellers/Value Added Resellers of Akamai? They are all information security scammers?

Conclusion

Think carefully before you purchase information security services or products. Do more researches on the providers/vendors of infosec before making any decision. Finally, it is difficult to determine professional and unprofessional in general.

Reference

Distributed Denial-of-Service Attack
Content Delivery Network
Web Application Firewall

(a) Nexus Guard - https://www.nexusguard.com/
Domain is registered on Sept 9, 2008
Server common name : secure0009.hubspot.com
Server domain #1 : a184-50-88-78.deploy.static.akamaitechnologies.com (184.50.88.78)
Server domain #2 : a184-50-88-3.deploy.static.akamaitechnologies.com (184.50.88.3)
Server IP : 128.177.173.177:443

(b) Zenedge - https://www.zenedge.com/
Domain is registered on Jan 7, 2013
Server common name : secure0004.hubspot.com
Server domain #1 : a184-50-88-76.deploy.static.akamaitechnologies.com (184.50.88.76)
Server domain #2 : a184-50-88-3.deploy.static.akamaitechnologies.com (184.50.88.3)
Server IP : 69.31.76.226:443

(c) Akamai - https://www.akamai.com/
(Akamai Technologies - akamaitechnologies.com)
Domain is registered on Aug 17, 1998
Server domain : a23-75-36-144.deploy.static.akamaitechnologies.com (23.75.36.144)

That's all! See you.