Advanced CSRF and Stateless Anti-CSRF - owasp

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Demo CSRF POST then Demo CSRF + XSS The Browser Exploitation Framework http://beefproject.com/
Important in your REST API • • Restrict HTTP method, e.g. POST Easier to do CSRF with GET Restrict to AJAX if applicable X-Requested-With:XMLHttpRequest Cross-domain AJAX prohibited by default • Restrict media type(s), e.g. application/json HTML forms only allow URL encoded, multipart and text/plain
Page 1 and 2:
Advanced CSRF and Stateless Anti-CS
Page 3 and 4:
Some Quick CSRF Basics
Page 5 and 6:
Cross-Site Request Forgery Request
Page 7 and 8:
What’s on your mind? I love OWASP
Page 9 and 10:
What’s on your mind? POST What’
Page 11 and 12:
What’s on your mind? POST What’
Page 13 and 14:
What’s on your mind? John: I hate
Page 15 and 16:
Multi-Step, Semi-Blind CSRF
Page 17 and 18:
Step 1 Step 2 Step 3 Forged request
Page 19 and 20: csrfMultiDriver.html invisible ifra
Page 25 and 26: Invisible iframe for timed GET
Page 27 and 28: When var IFRAME_ID the iframe's
Page 29 and 30: var IFRAME_GETTER = {}; IFRAME_GETT
Page 31 and 32: var IFRAME_GETTER = {}; IFRAME_GETT
Page 33 and 34: The onerror event will fire var IFR
Page 35 and 36: POST var IFRAME_ID = "1"; In
Page 37 and 38: var IFRAME_ID = "1"; called.
Page 39 and 40: var IFRAME_POSTER = {}; IFRAME_POST
Page 41 and 42: var IFRAME_POSTER = {}; IFRAME_POST
Page 43 and 44: eturn { checkIFrames : function() {
Page 45 and 46: There used to be a protection in we
Page 47 and 48: Forced Browsing wizard-style Shipme
Page 49 and 50: Forced Browsing wizard-style Token
Page 51 and 52: Forced Browsing wizard-style Token
Page 53 and 54: RIA & client-side state { ”purcha
Page 59 and 60: Can an attacker forge such a JSON s
Page 61 and 62: CSRF possible? { ”purchase”: {
Page 63 and 64:
Page 65 and 66: Forms produce a request body that l
Page 67 and 68: like this: ... and that is accepta
Page 69: like this: ... and that is JSON!
Page 73 and 74: Double Submit (CSRF protection) Ant
Page 75 and 76: Double Submit (CSRF protection) Ant
Page 77 and 78: Are We Fully Protected Now?
Page 79 and 80: The Other Subdomain https://securis
Page 81 and 82: The Other Subdomain https://securis
Page 83 and 84: I'm proposing some sort of Triple S
Page 85 and 86: Triple Submit (CSRF protection) Ran
Page 87 and 88: The 3rd Submit • The server sets
Page 89 and 90: The 3rd Submit • The server sets
Page 91 and 92: My Demo System is Being Released as
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Advanced CSRF and Stateless Anti-CSRF - owasp

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