Resource takeover x



Missed last available coffee mug?
Watch out, April Fools’ Day!


There are many things, besides the last free mug of course, that can be taken over… You should know examples below.



Don’t let anyone make a fool out of you, not only on April Fools’ Day.
Make sure that the applications you create are secure. Download our free Mobile Application Security Guide


Read more and check our tips.



User accounts takeover

The crown jewel – taking over user accounts. It’s the best when done massively.


  • Facebook allowed a bug that enabled to unlock any user’s account on the developer’s version of the site


We wrote about why the OAuth 2.0 protocol was better omitted in the authentication process. Airbnb and Uber have been painfully convinced of this.



  • An attack using theft of the OAuth access token was performed also against Uber.



Subdomain takeover

This is a new stuff in the hackers’ repository of attacks. The idea is based on a subdomain (e.g. which points to a second domain ( through a CNAME DNS record, and this second domain expires.


The attacker can register again, and thus take over

As a result, cookies set in the parent domain can be stolen and the preparation of a phishing campaign will be much easier and more effective.


For more info see:

A Guide To Subdomain Takeovers

Subdomain Takeover: Basics




Attackers can even steal resources of your website – by a Cross Site Scripting vulnerability, it is possible to add a malicious script, that will mine crypto while being executed!



Stay alert not only on April Fools’ Day:

  • Do a security assessment of your application to check if user accounts are protected properly.
  • If you have multiple subdomains, you can use existing tools to check if those domains can be taken.
  • Monitor your computer performance, and close unused tabs in a browser once in a while.


Do you remember the shiny new laptop lock that you got to prevent theft of your precious computer? Lock your cup with it and now the evil cleaning lady and your fellow coffee addicts will stay away from your beloved cup.


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