After being logged off for around an hour I reconnected to the Internet and pasted that URL again and got back in......this made me suspic ious. I clicked on exit and checked the whole "exit" document. Down the bottom I found a link :
Log off completely.
Nice of them to warn you and put it way down the bottom. Most new users will not realise that the log off process is a double actio n...if you log off "completely" then the cookie is removed from the Temporay Internet Files directory.
What does all this mean ?
Security wise if you can get physical access to a machine that someone has used to collect their mail and not done the d ouble log off then you can
access their account perhaps ad infinitum. (I don't know yet if the cookie has a TTL so to speak.) In practice this means you'll be cracking a friend's,
work (or school) colleague's or family member's account. Good for s nooping on your girlfriend's e-mail activities too.... . Unfortunately
you can't copy it to a floppy disk and save it in your own computer's Temporary Internet Files directory because of the ":" ...What you'd need to do is copy it to a flo ppy anyway...so you've got what info you need...then, now here's the complicated part :
Set your own PC up as a webserver as well as a DNS server (if you've got NT Server your laughing). Create a DNS entry for mail.yahoo.com and use the loopback (127.0. 0.1). Then create an htm file with the necessary script to impart a cookie with this same
information. Connect to mail.yahoo.com (you'll actually loopback) and the cookie will be downloaded to the Temp Net files Directory....
A big hassle to do...pr obably easier to watch them type their password ;o) but it's knowing how it can be done..that's the important thing. Btw, just for any of you jokers out there...I've modified the security identifier and the e-mail account name etc....I'm not gonna give yo u a copy of my real cookie then tell you how to exploit it...get real ;o) There'll be other ways to crack yahoo, of course....this is just my offering on the matter...for now anyway.