waf build

How to build a reliable WAF (Web application firewall) (1) What components are included in WAF implementation and how these components interact to implement WAF defense functions (2) How to maintain WAF rules (Policies) Maintenance Rules (Policies), including obtaining chann

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 idea

(1) WAF implementation WAF includes which components, how these components interact to achieve WAF defense functions (2) WAF rules (Policy) Maintenance rules (policy) how to maintain, including access to channels, rules testing methods and on-line effect Evaluation (3) WAF s

Introduction:First of all, we should all know the function and principle of WAF, the market is basically using Nginx+lua to do, here is no exception. But slightly different, the logic is not in Lua.Instead of using Elasticsearch for analysis, LUA only uses the analyzed IP address to block, greatly reducing the direct interruption caused by false positives and other failures.The architecture diagram is as follows:You can get the following useful data:1

403 Request Denied with special charactersWhite list rule syntax:Basicrule wl:id [Negative] [mz:[$URL: target_url]|[ match_zone]| [$ARGS _var:varname]| [$BODY _vars:varname]| [$HEADERS _var:varname]| [NAME]]Wl:id (white list ID) which interception rules will go to whitelistwl:0: Add all the interception rules to whitelistWl:42: Whitelist the interception rule with ID 42Wl:42,41,43: Whitelist the interception rules with IDs 42, 41, and 43WL:-42: Add all interception rules to whitelist except for

WAF series-Free advertisement Router web Authentication Settings (1), WAF Recently, the advertisement router is very popular. After a half-day tutorial on the Internet, the web Authentication background is successfully connected today. Sort it out. In fact, we can connect to each other in just one minute. If you start to explore from 0, it will waste a lot of time if you do not clear many concepts. Here, w

IPS (Intrusion prevention system) and WAF (Web Application Protection system) Two products have different usage scenarios, with the complexity of web application development, security requirements are increasing, the emergence of WAF is in compliance with the needs of the market and technology.Web application protection is undoubtedly a hot topic. Due to the development of technology and people's expectatio

I. About SQL injectionSQL injection is a common technique for invading Web applications. SQL injection is a result of changing the original SQL statement execution logic using the application system's programming vulnerability and the syntax characteristics of the SQL language.An attacker sends carefully constructed input data to a Web application that is interpreted as a SQL instruction, alters the original normal SQL execution logic, executes an attacker-issued SQL command, This ultimately all

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

WAF Defense Capability Evaluation and tools This article describes how to evaluate a WAF from the defense capability of conventional attacks. A total of 16 attack types are covered, each of which ranges from the Use scenario (The purpose of the attack operation) to the injection point (where the vulnerability is generated, for example, most WAF comprehensively c

WAF classification:1. Network Layer Class2. Most common and easy-to-deploy application tier classes (before Apache, after Apache)The application layer waf– leverages the WAF's own flaws and MySQL syntax features and combines the actual bypass:WAF most common detection method: keyword Detection For example, if a [space]union[space] Such an SQL statement is considered a malicious request, discard this packet,

can do the job for us--as long as there is a comprehensive vulnerability information WAF can block this vulnerability in less than one hours. Of course, this is not a perfect way to mask the vulnerability, and it is a security threat not to install the patch itself, but we do not have a choice, and any protection is better than no protection.(Note: The principle of prompt patching can be better applied in XML-based applications, because the communica

Web hacker always survive in the constant struggle with WAF, manufacturers constantly filter, Hacker constantly bypass. WAF Bypass is an eternal topic, many friends also summed up a lot of strange tricks. Well, today I'm here to do a little literacy. First, what is the WAF bypass?A WAF, simply stated, is a Web applicat

The first name before this article is: WAF bypass for SQL injection #理论篇, I submitted freebuf on June 17. Link: Click here now Blog recovery, special hair here.Web hacker always survive in the constant struggle with WAF, manufacturers constantly filter, Hacker constantly bypass. WAF Bypass is an eternal topic, many friends also summed up a lot of strange tricks.

-DSS certification has special requirements for certificate quality, such as the need to use a protocol version of TLS 1.1 or later, and the need to use a forward security algorithm (Forward security) for secure key exchange. As a result, the gateway needs to enable security by default. Open source Yes, I used to spend the weekend with my kids to build a version of this basic function (JANUSEC application Gateway) and use it on your personal website.

1. ForewordWhile Web application is becoming richer, the Web server is becoming the main target for its powerful computing ability, processing performance and high value. SQL injection, Web tampering, Web page hanging Horse and other security incidents, frequent occurrence.Enterprises and other users generally use firewalls as a security system of the first line of defense. But, in reality, they have such problems, such as the traditional firewall system can not respond to the current rapid outb

Who is the best choice? Web application protection is undoubtedly a hot topic. Because of the maturity of technologies and the increasing expectation of convenience, Web applications have become the mainstream carrier of business systems. The data value contained in the key business systems of "anjia" on the Web has aroused the favor of attackers. The Web vulnerability mining and attack tools circulating on the Internet have lowered the attack threshold, it also makes many attacks blind and rand

Web Hacker is always in constant struggle with WAF, vendors are constantly filtering, and Hacker is constantly bypassing. WAF bypass is an eternal topic, and many friends have summarized many strange tricks. So today I am going to make a small literacy program. Let's talk about WAF bypass. WAF is a Web application fir

Tags:;; Hacker SQL Sch error security different development lineWeb hacker always survive in the constant struggle with WAF, manufacturers constantly filter, Hacker constantly bypass. WAF Bypass is an eternal topic, many friends also summed up a lot of strange tricks. Well, today I'm here to do a little literacy. First, what is the WAF bypass? A

Move 2 websites to Aliyun, one is because the Aliyun is stable, and the other is the roaring Cloud shield. In the Blog Federation group before the simulation of CC attacks built on the Aliyun ECS on the blog, the results Yun Dun no response, and the site has been hung. This time deliberately look at the CC protection function on the cloud shield, found that some friends do not estimate the correct use of WAF. Therefore, in this article I simply sh