modsecurity waf

WAF bypass technology in SQL injection January 06, 2013 released in study notesBystanderBlog: http://leaver.meForum: French ForumDirectory1. Case-insensitive Bypass2. Simple code Bypass3. Comment Bypass4. Separating override Bypass5.Http parametric contamination (HPP)6. Using the logical operator Or/and bypass7. Compare operator substitution8. Replace with function function9. Blinds without OR AND and10. Parentheses11. Buffer Overflow Bypass1. Case-in

Thanks for the documentation provided by the great Gods online. nginx WAF +lua Security Module , Web application firewall on Nginx Required Software: 1, Luajit download website: http://luajit.org (current stable version: 2.0.4)2, Ngx_devel_kit-0.2.19.tar3, Lua-nginx-module-0.9.5rc2.tar4, Master.zip5, NginxOptimized Nginx Package1, Libunwind2, Gperftools First, install the Luajit TAR-ZXVF LuaJIT.tar.gz Make Make Install Post-installation Lib,include

In the current network environment, applications have become the main carrier of the network, and more threats to network security come from the application layer, which puts forward higher requirements for network access control. How to precisely identify users and applications, block applications with security risks, ensure normal use of valid applications, and prevent port theft has become the focus of users on network security. The Web application protection system is also called the website

Directory 1. case -insensitive bypass 2. Simple Code Bypass 3. Comment Bypass 4. separating override bypass 5.Http parametric contamination (HPP) 6. using the logical operator Or/and bypass 7. Compare operator Substitution 8. Replace with function function 9. Blinds without or and and Add Brackets 11. Buffer Overflow Bypass 1. Case-insensitive BypassThis is very familiar to everyone, for some of the too garbage WAF effect is significant, such as block

After all the system security defenses are completed, I am afraid SQL injection, cross-site attacks, and other web Application Layer defenses are left behind. This is also the most troublesome thing for the majority of webmasters, A few days ago, I wrote "Security treasure architecture technology speculation and advanced network security defense" to explain the simplest high-performance defense method, which can be slightly modified based on my own situation, we can deal with most of the attacks

Forum: French Forum directory 1. case-insensitive bypass 2. simple code bypass 3. annotation bypass 4. separated rewrite bypass 5. http parameter pollution (HPP) 6. use the logical operator or/and to bypass 7. comparison operator replacement 8. replace functions with functions 9. no need for blind injection or and 10. brackets 11. buffer overflow bypass 1. everyone is familiar with case-insensitive bypass. For some too-junk WAF, the effect is signific

Waf xss bypass posture Due to the wide use of application firewalls, it is necessary to test WAF's ability to defend against xss attacks. Of course, all the experiments are to prove that the vendor must eliminate the vulnerability from the root cause, and cannot lie on the WAF without any worries.Some popular WAF such as F5 Big IP, Imperva Incapsula, AQTRONIX Web

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

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

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

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 \-

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

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

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