Time for self authentication

[Dirk83]

Target=”_blank” — the most underestimated vulnerability ever

People using target=’_blank’ links usually have no idea about this curious fact:
The page we’re linking to gains partial access to the source page via the window.opener object.
The newly opened tab can then change the window.opener.location to some phishing page. Or execute some JavaScript on the opener-page on your behalf… Users trust the page that is already opened, they won’t get suspicious.

Example attack: create a fake “viral” page with cute cat pictures, jokes or whatever, get it shared on Facebook (which is known for opening links via _blank) and every time someone clicks the link — execute this
window.opener.location = ‘https://fakewebsite/facebook.com/PHISHING-PAGE.html’;
…redirecting to a page that asks the user to re-enter her Facebook password.

[janitor]

Yeah, the big news from 2012.

I can’t believe that no anti virus/phishing/malware s/w doesn’t stop this.
I have 3 such apps running at all times, don’t think I’ll lose much sleep over this.