cyber security roadshow

20155232 "Cyber Confrontation" EXP9 Web Security FoundationThe objective of this practice is to understand the basic principles of commonly used network attack techniques. Webgoat the experiment in practice.Experimental process WebgoatWebgoat is a web-based vulnerability experiment developed by the OWASP organization, which contains a variety of vulnerabilities commonly found in the web, such as cross-site

20145225 Tang "Cyber confrontation" Web Security Basics Practice Reference Blog: 20145215 Luchomin basic question Answer(1) SQL injection attack principle, how to defend? A SQL injection attack is the goal of tricking a server into executing a malicious SQL command by inserting a SQL command into a Web form to submit or entering a query string for a domain name or page request. Defense: Use inp

20155323 Liu Willang "Cyber Confrontation" EXP9 Web Security Foundation Practical purposeUnderstand the fundamentals of commonly used network attack techniques.Practice ContentWebgoat the experiment in practice.The practice process opens webgoat Webgoat is a flawed Java EE Web application maintained by owasp, which is not a bug in the program, but is deliberately designed for Web application

20155207 "Cyber Confrontation" EXP9 Web Security Fundamentals Experiment Content About Webgoat Cross-site Scripting (XSS) Exercise Injection flaws Practice CSRF attack Experiment Summary and experienceThis experiment was done in the Webgoat 10 related practices of SQL injection, from last week to learn simple through text box input string Construction SQL statement SQL injected int

IPv6 Security CCIE Guides CCIE Security v3.0 Configuration Practice Labs CCIE Security v4.0 Configuration Practice Labs CCIE Security Exam Certification guide, 2nd Edition CCIE secuirty v4.0 Exam Certification Guide Part 2:websiteWww.cisco.com, support, Configure, technologySecurity

Chapter I.1, the 3 Basic Objectives of information security are: confidentiality , integrity and availability . In addition, there is a non-negligible goal: legal use . 2 4 Information disclosure integrity destruction denial of service and illegal use of 3. Access control policies can be divided into: Mandatory access control policy and the Autonomous access Control Strategy . 4. Security

标网站的cookie，ok那什么是cookie？cookie就是存于本地用户的数据，某些网站为了辨别用户身份、进行session跟踪；ok那么获得了这些信息之后，就可以在任意能接进互联网的pc登陆该网站，并以其他人的生份登陆，做一些破坏。 进行防御，我看懂了别人的博客，感觉挺有道理的：第一就是当恶意代码值被作为某一标签的内容显示时，在不需要html输入的地方对html标签及一些特殊字符做过滤，这样就相当于这些字符没有用，因为他不被执行，那不执行不就是防御住了；第二就是当恶意代码被作为某一标签的属性显示时，通过用将属性截断来开辟新的属性或恶意方法：属性本身存在的单引号和双引号都需要进行转码；对用户输入的html 标签及标签属性做白名单过滤，也可以对一些存在漏洞的标签和属性进行专门过滤。意思其实很简单，就是说原本的属性被转码了，用户新加的属性又会被过滤，这也是一种防御的方法。(3) CSRF attack principle, how to defend 就是跨站请求伪造，首先要注意，他和XSS攻击截然不同！看名字就知道，他是通过伪装来自受信任用户的请求来利用受信任的网站，而X

]?:/ /[\\w-]+\\. "); Buff.append (domain); Buff.append ("(\\/.*)? $)"); } buff.append ("| ( ^(?! HTTP). +$) "); White_domain_pattern = Pattern.compile (buff.tostring (), pattern.case_insensitive);}Five. File Upload preventionRiskThe server is under hacker controlPrincipleThe attacker can control the server by uploading an executable script via an attachment upload vulnerability.Prevention Verify file extension, only allow upload of file types in whitelist (both front and b