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Web 2.0 Application Kung-Fu - Securing Ajax & Web Services

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Shreeraj Shah
Shreeraj Shah
Technology
1 of 42
Web 2.0 Application Kung-Fu Securing Ajax & Web Services Shreeraj Shah DeepSec 2007– Vienna,2007
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Who am I? http://shreeraj.blogspot.com [email_address]
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Web 2.0 Trends ,[object Object],[object Object],[object Object]
Web 2.0 – Ajax & Web Services HTML / JS / DOM RIA (Flash) Ajax Browser Internet Blog Local Application Database Authentication Internet Weather News Documents Emails Bank/Trade RSS feeds Web Services
Widget DOM HTML/CSS JavaScript SOAP XML-RPC JSON XML Open APIs SaaS Services REST Browser Protocols Web 2.0 Layers Ajax Flash / RIA JSON-RPC Structures Server-Side HTTP(S)
Technologies Web Server Static pages HTML,HTM etc.. Web Client Scripted Web Engine Dynamic pages ASP DHTML, PHP,CGI Etc.. DB X ASP.NET with .Net J2EE App Server Web Services Etc.. Application Servers And Integrated Framework Internet DMZ Trusted Internal/Corporate W E B S E R V I C E S Ajax RIA Client SOAP, REST, XML-RPC, JSON etc.
Web 2.0 Security ,[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax Security – Attacks & Defense ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax basics ,[object Object],HTML / CSS JS / DOM XMLHttpRequest (XHR) Database / Resource XML / Middleware / Text Web Server Asynchronous over HTTP(S)
Ajax - Sample ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax & Data structures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Cross-domain calls ,[object Object],[object Object],[object Object],[object Object]
Ajax fingerprinting ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax attack points ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax attack vectors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax Scanning ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax serialization issues ,[object Object],message = { from : "john@example.com", to : "jerry@victim.com", subject : "I am fine", body : "Long message here", showsubject : function(){document.write(this.subject)} }; XSS
Ajax serialization issues ,[object Object],[object Object],{"bookmarks":[{"Link":"www.example.com","Desc":"Interesting link"}]} new Array(“Laptop”, “Thinkpad”, “T60”, “Used”, “900$”, “It is great and I have used it for 2 years”)
Ajax and JS manipulation ,[object Object],[object Object],[object Object],[object Object],[object Object]
Ajax and RSS injection ,[object Object],[object Object],[object Object],[object Object]
Ajax Crawling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Defending Ajax ,[object Object],[object Object],[object Object],[object Object],[object Object]
Defending Ajax ,[object Object],[object Object],[object Object],[object Object],[object Object]
Web Services – Attacks & Defense ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Methodology Footprinting & Discovery Enumeration & Profiling Vulnerability Detection Code / Config Scanning Web Services Firewall Secure Coding Insecure Web Services Secure Web Services Blackbox Whitebox Defense & Countermeasure
Footprinting and Discovery ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Primary Discovery ,[object Object],[object Object],[object Object]
Primary Discovery - Demos ,[object Object],[object Object],[object Object],[object Object]
Secondary Discovery ,[object Object],[object Object],[object Object],[object Object],[object Object]
Enumerating and Profiling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Scanning strategies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Cross Site Scripting (XSS) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Injection Flaws ,[object Object],[object Object],[object Object],[object Object]
Malicious File Execution ,[object Object],[object Object],[object Object]
Insecure Direct Object Reference ,[object Object],[object Object],[object Object],[object Object],[object Object]
Cross Site Request Forgery ,[object Object],[object Object],[object Object],[object Object],[object Object]
Code Analysis for Web Services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],Code filtering with IHTTPModule
HTTP Stack for .Net HttpRuntime HttpApplicationFactory HttpApplication HttpHandlerFactory IHttpModule Handler Web Application Firewall & IDS 148
IHTTPModule for Web Services Firewall ,[object Object],[object Object],[object Object],[object Object],[object Object]
Thanks! ,[object Object],[object Object]

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Web 2.0 Application Kung-Fu - Securing Ajax & Web Services

  • 1. Web 2.0 Application Kung-Fu Securing Ajax & Web Services Shreeraj Shah DeepSec 2007– Vienna,2007
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  • 5. Web 2.0 – Ajax & Web Services HTML / JS / DOM RIA (Flash) Ajax Browser Internet Blog Local Application Database Authentication Internet Weather News Documents Emails Bank/Trade RSS feeds Web Services
  • 6. Widget DOM HTML/CSS JavaScript SOAP XML-RPC JSON XML Open APIs SaaS Services REST Browser Protocols Web 2.0 Layers Ajax Flash / RIA JSON-RPC Structures Server-Side HTTP(S)
  • 7. Technologies Web Server Static pages HTML,HTM etc.. Web Client Scripted Web Engine Dynamic pages ASP DHTML, PHP,CGI Etc.. DB X ASP.NET with .Net J2EE App Server Web Services Etc.. Application Servers And Integrated Framework Internet DMZ Trusted Internal/Corporate W E B S E R V I C E S Ajax RIA Client SOAP, REST, XML-RPC, JSON etc.
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  • 26. Methodology Footprinting & Discovery Enumeration & Profiling Vulnerability Detection Code / Config Scanning Web Services Firewall Secure Coding Insecure Web Services Secure Web Services Blackbox Whitebox Defense & Countermeasure
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  • 40. HTTP Stack for .Net HttpRuntime HttpApplicationFactory HttpApplication HttpHandlerFactory IHttpModule Handler Web Application Firewall & IDS 148
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