Adversarial ROBOT: Build a WAF that combines front and back ends
We have introduced some man-in-the-middle attack solutions that combine front and back ends. Due to the particularity of Web programs, the participation of front-end scripts can greatly make up for the shortcomings of the backend, so as to achieve the traditional hard-to-achieve effect.
Since the attack can be used for attacks, similar ideas can also be used for defense. If we integra
WAF Introduction
What is WAF?
Web Application Firewall is a product that provides protection for Web applications by executing a series of HTTP/HTTPS security policies.Basic/simple bypass method:
1. annotator
Http://www.site.com/index.php? Page_id =-15 /*! UNION *//*! SELECT */1, 2, 4 ....
2. Use Case
Http://www.site.com/index.php? Page_id =-15 uNIoN sELecT 1, 2, 4 ....
3. Combine the previous two methods
H
replace the first @ ''' with @ ''', so that the second @ 4 can be replaced. attackers can bypass a waf-by havij
/*!30000union all select (select distinct concat(0x7e,0x27,unhex(Hex(cast(schema_name as char))),0x27,0x7e) from `information_schema`.schemata limit 10,1),null,null,null,null*/--list.php?yw=bjid=3id=1 /*!30000union all select (select concat(0x27,uid,0x5e,username,0x5e,password,0x5e,email,0x5e,salt,0x27) from `gs_ucenter`.uc_members limit 0,
Web application protection system (also called website application-level intrusion defense system. Web Application Firewall (WAF ). Using an internationally recognized saying: Web Application Firewall is a product designed to protect Web applications by executing a series of HTTP/HTTPS security policies. This article introduces some common WAF fingerprint recognition technologies. For details, see the follo
Abstract: Author: bugcx or anonymous WAF (Web application firewall) has gradually become one of the standard security solutions. With it, many companies do not even care about Web application vulnerabilities. Unfortunately, not all WAF services cannot be bypassed! This article will show you how to use the sqlmap injection tool to bypass WAFS/IDSS. SVN download the latest version...
Author: bugcx or anonymo
In the "Out of the Web application firewall misunderstanding" series of articles (i), we analyzed and discussed who can protect Web applications, in this article we will focus on the characteristics and application of WAF.
As early as 2004, some foreign security vendors put forward the concept of Web application firewall (Web application Firewall, WAF), and began a step-by-step attempt (such as Barracuda N
Web application firewall (WAF), translated as web application firewall, is mainly used to block attacks against WEB applications. Su baozi talked about his thoughts on WAF. You are welcome to make bricks and supplement them.
1. Necessity
Practical Application: enhances awareness of the security status of WEB apps, controls web APP risks to a certain extent, and makes up for technical and implementation sh
App Gateway on Azure is a seven-tier load balancing service, and WAF is an extension of App Gateway services. The seven-tier load balancer adds the functionality of the WAF to protect the HTTP service in the background.Azure WAF is based on the WAF functionality implemented by the open source modsecurity owasp core rul
Recently on new projects, to build nginx to ensure security, the decision to install the WAF module, the following is the specific steps, first download the required installation package, for each installation:
wget http://luajit.org/download/LuaJIT-2.0.3.tar.gz
tar-zxvf luajit-2.0.3.tar.gz
cd LuaJIT-2.0.3
make Make
Install
Then download the Nginx,
wget http://nginx.org/download/nginx-1.7.6.tar.gz
TAR-ZXVF nginx-1.7.6.tar.gz
Objective
Tencent as a company-level webserver vulnerability protection system, the current Tencent Door God System (hereinafter referred to as God) has covered nearly million webserver servers, daily processing of HTTP data packets up to tens of billions of.
There are many kinds of realization of WAF, see "Mainstream WAF architecture analysis and exploration" in details. According to the company's busine
Translation: pnig0s _ Small PLast week, I was invited to team up for a CTF flag race organized by CSAW. because of my wife and children, I can only pick one question related to Web vulnerability exploitation, called "HorceForce ". this question is worth 300 points. The general background of this question is that you have a low-privilege account and need to find a way to obtain administrator permissions.Of course, there are many ways to introduce how to pass the customs clearance, but I want to s
. As follows:Enter the source code directory of the nginx1.8. Execute the following series of commands:# import environment variables, compile# Exportluajit_lib=/usr/local/lib #这个很有可能不一样# exportluajit_inc=/usr/local/include/luajit-2.0# This is probably not the same# cd/home/tools/lnmp1.2-full/src/nginx-1.8.0#./configure \--user=www--group=www \--prefix=/usr/local/nginx \--with-http_stub_status_module \--with-http_ssl_module \--with-http_spdy_module \--with-http_gzip_static_module \--with-ipv6 \-
As commercial banks move more and more businesses to the Internet, online business forms represented by online banking have been widely used in China. However, after the banking system is networked, the network security problem poses a huge challenge to banks. More and more banks are adopting Web application firewall (WAF) to protect the security of Web application systems.
The Online Business System of a commercial bank in Guangzhou includes: Web Sit
More and more servers will be added to waf.
How to bypass:
Waf is suitable for code layer separation, that is, it is not specifically customized, it also prevents General injection or cross-site.
The following is a case study:
When encountering such a server, he has a page with the search function.
If the request is submitted as post in the search, the modified characters are displayed in the URL. For
the attack may cause to the enterprise;Accurately identify various network traffic, reduce false positives and false alarms, and avoid affecting normal business communications;Comprehensive and granular flow control function to ensure the continuous and stable operation of business critical business;Rich high availability, providing bypass (hardware, software) and HA reliability Assurance measures;Scalable multi-link IPs protection to avoid unnecessary duplication of security investments;Provid
Web application firewils provide security at the application layer. Essential, WAF provides all your web applications a secure solutionWhich ensures the data and web applications are safe.A Web Application Firewall applies a set of rules to HTTP conversation to identify and restrict the attacks of cross site scripting,SQL injections etc. you can also get Web application framework and web based commercial tools, for providing security to Web applicatio
Label:WAF (Web application firewall) is becoming one of the standard security solutions. Because of it, many companies don't even care about vulnerabilities in Web applications. Unfortunately, not all WAF are non-circumvention! This article will tell you how to use the injection artifact Sqlmap to bypass Wafs/idss.SVN download the latest version of SqlmapSVN checkout Https://svn.sqlmap.org/sqlmap/trunk/sqlmap Sqlmap-devOur focus is on using the tamper
Cookie security protection for WAF DevelopmentI. preface the Cookie security protection function mainly achieves the following two goals:
1. Prevent XSS attacks from stealing user cookies2. Prevent Cookie-based SQL injection, command injection, and other messy attacksAdvantages
1. Security (Please advise if you have any ideas to crack)2. General3. easy configurationDisadvantages
1. Identify Based on IP addresses. In the case of the same Internet IP ad
wafw00fWAFW00F identification and fingerprint Web application Firewall (WAF) products.It works by first sending a normal HTTP request, and then observing that it returns no feature characters, and then judging the WAF that is used by sending a malicious request that triggers a WAF interception to get its returned features.Supported
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