[Full-disclosure] Google / GMail bug, all accounts vulnerable

[coderman]

On Dec 12, 2007 10:05 AM, Steven Adair <steven at securityzone.org> wrote:
> ...
> I guess I am not understanding why this is considered to be a big CSRF
> issue.

big is relative.  i call it funny colored medium to small medium...


> ... You cannot send/delete e-mail or take
> any real actions can you?

let us ponder this:

CSRF icon in your bookmarks to lure you.

XSS in google spreadsheet, chat, $service.

they meet fortuitously in a black hat tryst and your browser is a sock
puppet (to goog) all the live long day...

to beat this dead horse one more time:
- the favicon behavior introduces some useful / interesting vectors
not previously discussed
- the ability of CSRF is much less interesting than application of
CSRF.  maybe much ado about nothing, maybe materia to junction in the
chamber of your sploit cannon...???


> Let's keep in
> mind that these redirects keep the HTTP referer field in tact.

not always, see http/https transitions and browser specific 301/302
fast redirect behavior...