Stealing Web Browser Cookies ben-holland.com Whats a cookie? Web - - PowerPoint PPT Presentation

stealing web browser cookies
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Stealing Web Browser Cookies ben-holland.com Whats a cookie? Web - - PowerPoint PPT Presentation

Stealing Web Browser Cookies ben-holland.com Whats a cookie? Web 2.0 Cookies provide state Examples: Items in shopping cart AuthenFcaFon! Cookies Passwords! Username + Password = Cookie If I know your authenFcaFon


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SLIDE 1

Stealing Web Browser Cookies

ben-holland.com

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SLIDE 2

What’s a cookie?

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SLIDE 3

Web 2.0 – Cookies provide state

Examples:

  • Items in shopping cart
  • AuthenFcaFon!
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SLIDE 4

Cookies ≥ Passwords!

  • Username + Password = Cookie
  • If I know your authenFcaFon cookie value I

don’t need your password!

  • SomeFmes cookies don’t expire for a really

long Fme…

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SLIDE 5

How can I get your cookies?

  • Packet sniffing (wiretapping)

– Wired networks – Wireless networks

  • (IASTATE vs eduroam)

– HTTP vs. HTTPS – hUps://www.cookiecadger.com/ – hUps://github.com/benjholla/tssk

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SLIDE 6

How can I get your cookies?

  • XSS (Cross Site ScripFng) AUacks

– How about you just send me your cookies… – HTTP Only Flag

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SLIDE 7

How can I get your cookies?

  • Client Side AUacks

– Browsers store cookies in a file… – hUps://github.com/benjholla/CookieMonster