Facebook Bug Could Give Spammers Names, Photos

angry tapir writes with this excerpt from an IDG report: "Facebook is scrambling to fix a bug in its website that could be misused by spammers to harvest user names and photographs. It turns out that if someone enters the e-mail address of a Facebook user along with the wrong password, Facebook returns a special 'Please re-enter your password' page, which includes the Facebook photo and full name of the person associated with the address. A spammer with an e-mail list could write a script that enters the e-mail addresses into Facebook and then logs the real names. This could help make a phishing attack more realistic."

Comments

*Smack Face*

[Monkeedude1212]

Seriously? Who is freaking writing these web pages? It would have been easier to NOT include photo's and names than to build it in there!

Re:*Smack Face*

[odies]

I think the summary and story is looking at wrong aspect about it too. Spammers, whatever. You're just one in a million. This is a lot more serious about people that just know your email, but are in more personal contact with you than some spammers. Website owners, forum administrator, people you meet on the internet.. Those who know your email but don't really know your real identity. That's a lot more serious privacy violation.

Re:*Smack Face*

[yenne]

I just tried it. Looks to me like Facebook has a problem with users who enter the wrong e-mail address and can't figure out why their logon isn't working. Hence, the "Not you? Click here." option beside the picture.

It's entirely possible that the idiocy behind the interface design is in an ongoing stupidity arms race with the consumers on the other end.

Re:*Smack Face*

[paulbiz]

I have a "good" gmail address (my full name@gmail.com) and I constantly get e-mail from other people signing up for things who apparently don't know their own e-mail address. I've received passwords and various other sensitive data. Sprint was sending me receipts for someone's very large corporate purchases, I kept replying and forwarding them to sprint's customer care and they basically told me they can't do anything about it and to just delete them and not worry about it.

It's also amazing how many sites will not let you unsubscribe without providing some kind of personal info. Seriously? They let you sign up with the wrong address without confirming it, but I can't unsubscribe unless I know the last 4 digits of the guy's SSN?

Re:*Smack Face*

[Dhalka226]

I had the same problem happen, with some extremely sensitive data coming in.

In addition to somewhat mundane things like airline confirmations, hotel confirmations, etc, there were several letters about legal problems. The person they were trying to reach is apparently the head of an investment group and under investigation by the SEC. I also once received an email containing a bank account number with routing number. Usually it was sent to his (proper) business address and CC'd to my address, which I assume they thought was a personal address for him. When correspondence from lawyers starting coming in I decided it was well past time to start emailing these people and telling them to oh my god please stop. That's a can of worms I just wanted no part of whatsoever.

I did do a quick Google search for the guy; same last name, different first name (same first initial, the combination of which is my email address). Really a problem that shouldn't have happened, especially not that many times from that many different sources.

Re:*Smack Face*

[Khyber]

This is why I do not use my name as part of my e-mail address.

This cuts down on that problem considerably.

Not a Bug

[FrozenTousen]

It's a feature. Say you get amnesia and all you remember is your email address. Now, thanks to Facebook, you have a means of finding out your name, and what you look like!

Re:Not a Bug

[Anonymous Coward]

It's a very serious bug. Spammers aren't _supposed_ to be able to scrape that information without paying facebook for it.

Re:Not a Bug

[by (1706743)]

It's a feature. Say you get amnesia and all you remember is your email address. Now, thanks to Facebook, you have a means of finding out your name, and what you look like!

Imagine how much simpler the plot for The Bourne Identity would have been.

Not The Only Problem

[Revotron]

Fixing this alone means nothing. If you search for someone on Facebook it will show you a name and a profile picture. Sure, it requires a facebook account, but that's not too hard to create for somebody with 4,000,000 email addresses.

Re:Not The Only Problem

[e065c8515d206cb0e190]

You can search by email address. And last time I checked the only way to not show your profile picture to the world was to not have one at all.

Re:Not The Only Problem

[creat3d]

You can set your profile not to be searchable by email address.

Re:Not The Only Problem

[natehoy]

This means a lot if you have set your profile to be non-searchable and set your name and/or profile picture to be "visible to friends only".

POTS analogy: This is like going to the effort of getting an "unlisted number", where you aren't supposed to be listed in the phone book and your address is not supposed to be divulged to anyone, then finding out that anyone who happens upon your number and dials it gets a recording that includes your name and address.

Having said that, everything you enter in Facebook should be considered viewable by everyone on the planet. Facebook doesn't exactly have a long and reliable history of protecting the identity of the people who use it. They'd sell you for a nickel. They'd probably send someone to strangle your cat if they thought your angst-ridden posts would generate a few thousand more page views. It's not exactly like this should come as a surprise to anyone, especially those of us who actually use it.

So, as someone mentioned above - this is a very, very serious bug to Facebook. This information should NEVER be given out to anyone... who isn't paying for it.

From TFA

[wideBlueSkies]

>>Scraping Facebook for this type of information is prohibited, she added.

Oh, yes. That'll stop em'. Stern warnings always do.

Re:From TFA

[interkin3tic]

They should probably throw in a logical paradox to make their heads explode or short circuit. Like "It's forbidden to use this picture and name for evil purposes, because people want privacy, even though they put it all up there suggesting they don't want privacy... think about that."

There's only one problem...

"Santa-bot: Nice try. But my head was built with paradox-absorbing crumple-zones"

Need an adult

[dan_sdot]

Ok, we need an adult to start running this company please. Seriously, this Zuckerberg guy is so far out of his league it is laughable.

Scrambling, my ass...

[bugs2squash]

The site should go down for maintenance until they fix the issue, and only then brought back online.

This flaw is no longer available

[SplatMan_DK]

This flaw is no longer available on Facebook logon pages.

In fact it was removed before this story made it to the /. front page.

It was removed approx. 11 hours after the first public articles about it.

- Jesper

Re:This flaw is no longer available

[Anonymous Coward]

Really? I just went to Facebook, put in my email address and a bad password in, and I see "Login as: [My full name] [my email] Not you? click here". My picture is a blank picture, but it always is because I have all pictures turned off publicly. So, if they've removed the flaw, they've either not deployed it to all their servers yet (possible), or they really did a bad job of removing it.

Re:This flaw is no longer available

[Farmer Tim]

Slashdot: recent history for nerds, stuff that once mattered.

Return vs. Fresh Login

[Kelson]

Maybe it relies on a cookie or something, and it only shows that to you because you've been logged in before.

That does seem to be the case. I just tested it on two browsers, one of which I don't use with Facebook.

On the browser that I don't use with Facebook, the "Please enter your password" screen did not include a name or picture.

On the browser that I do use with Facebook, and had just logged out seconds before, my name and photo did appear. However, if I entered someone else's address, the name and photo did not appear. Just for kicks, I tried two email addresses, one of which I know does have an account and one of which I know doesn't. Facebook *did* tell me which one was not associated with an account.

A spammer isn't going to have your cookies, so they won't get your name and photo. But they can confirm whether you have a Facebook account or not.

Re:Return vs. Fresh Login

[AnAdventurer]

Best line EVER: A spammer isn't going to have your cookies

Predicted long ago

[betterunixthanunix]

My security engineering text (Anderson, 2nd edition) predicted that social networking websites would become security liabilities because of the amount of personal information they store about their members. That book was published in 2007.

"We were warned?"

Re:Scraping

[RAMMS EIN]

``But it was a design decision, not a bug.''

Also, not telling whether they got the username correct or wrong is security 101.

This is yet another case of Facebook having done the wrong thing for their users' privacy, and correcting things only to lessen the negative publicity. It's not an accident.

Internet security

[LoudMusic]

Q: Is your personal data safe?

A: [in form of a question] Is it in anyway a part of the internet, including being on your own computer in your own home, which is connected to the internet? If yes, then no.

Hell, even if I don't have a Facebook account and someone takes a pictures of me and uploads it to Facebook and tags it with my name then the internet knows what I look like. Privacy is a joke.

On the other hand, perhaps there's a market in creating false identities for people as a false data internet flood. As a business they would sign up for popular social networks with your name and upload a variety of pictures claiming to be you, with routine updates about things you're not actually doing. They could use their client list to 'friend' each other and build a nice false society. If someone on the internet ever posted true or factual information or pictures about you it would be considered less reliable due to the voluminous FUD being provided by the company hired to provide false information, and therefor discarded.