qualys waf

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

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.

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

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,

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

Tags: http io ar using SP file div on logBystanderBlog: 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-insensitive BypassThis is very familiar to everyone, for some of the too garbage

1. Case-insensitive BypassThis is very familiar to everyone, for some of the too garbage WAF effect is significant, such as blocking the union, then the use of Union and so on bypass.2. Simple code Bypasssuch as the WAF detection keyword, then we let him not detect it. For example, to test the union, then we use%55 that is U 16 encoding to replace U,union written%55nion, combined with case can also bypass s

1, HPP http parameter Pollution http parameter pollution means that the server side usually does some processing when submitting two parameters of the same key value in the URL. For example, Apache is going to take the last argument, for example: user.php?id=111id=222 If you output a $_get array, the ID's value will only take 222, i.e. the extra value submitted on the URL overrides the previous value. 2, a CTF topic http://drops.wooyun.org/tips/17248 About the injected

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

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

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

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

WAFWeb Application Firewall and WEB Application Firewall (WAF) are not popular in the global market? Mr. Grant Murphy, global product market manager of barracuda WAF, is clear, but the situation may not be the same for the Chinese market. WAF truth: IPS and IDS are not WAF First, Chinese customers lack knowledge about

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 channels, rule testing methods and online performa

Several ways to bypass WAF: http://www.80sec.com/%e6%b5%85%e8%b0%88%e7%bb%95%e8%bf%87waf%e7%9a%84%e6%95%b0%e7%a7%8d%e6%96%b9%e6%b3%95.htmlEmail: rayh4c # 80sec.comSite: http://www.80sec.comDate: 2011-09-06From: http://www.80sec.com /? P = 244 0 × 00 Preface At the beginning of, an SQL group injection attack was launched. Hackers swept away the ASP, Asp.net, and MSSQL websites around the world. Because MSSQL supports multi-statement injection, hackers

Site: www.80sec.com 0 × 00 PrefaceAt the beginning of, an SQL group injection attack was launched. Hackers swept away the asp, asp.net, and MSSQL websites around the world. Because MSSQL supports multi-statement injection, hackers can use a combined SQL statement to automatically tamper with the field content of the entire database and perform webpage Trojan attacks without any difference on the website. The Internet is updated and iterated quickly, but many organizations that do not have the ab

: This article mainly introduces the security basics of nginx (nginx + waf + lua). For more information about PHP tutorials, see. Thanks to the documents provided by the online experts. Nginx waf + lua security module, web application firewall on nginx Required software: 1. LuaJIT download site: http://luajit.org (Current stable version: 2.0.4)2、ngx_devel_kit-0.2.19.tar3、lua-nginx-module-0.9.5rc2.tar4、mast

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 rando