Pages

Jump to bottom

20 comments

1 Only The Lurker Knows  Wed, Jun 1, 2011 9:58:15pm

You ought to forward a link to this page to the Idiots over at Yfrog who seem to believe they don't have a problem.

2 Slumbering Behemoth Stinks  Wed, Jun 1, 2011 10:08:04pm

re: #1 Bubblehead II

Hell, forward it to Rep. Weiner's legal team.

Nice work, Captain.

3 Dark_Falcon  Wed, Jun 1, 2011 10:08:40pm

Good catch and thanks for doing this.

4 ElCapitanAmerica  Wed, Jun 1, 2011 10:12:28pm

Feel free to share and post your yfrog generated "word" here, specially if you have disabled your yfrog account (revoked permissions) and don't post your twitter name or email.

5 OhCrapIHaveACrushOnSarahPalin  Wed, Jun 1, 2011 10:13:07pm

Congrats, Capitan.

6 ElCapitanAmerica  Wed, Jun 1, 2011 10:25:57pm

As mentioned by Charles, facebook uses a similar "feature". However, at least from looking at my own account, the email address is a bit more complicated, with more than one word and a numeric combination.

Still, I rather this be a feature you can turn off. You can send messages to your facebook without a password (well, unless you consider an email address a password) via email (from any account) or MMS (from any phone).

7 Only The Lurker Knows  Wed, Jun 1, 2011 10:28:26pm

One has to wonder if this is going to turn into another "memogate" type of situation?

8 Slumbering Behemoth Stinks  Wed, Jun 1, 2011 10:36:49pm

re: #7 Bubblehead II

It does have "throbbing" written all over it.
/I feel dirty now.

9 ElCapitanAmerica  Wed, Jun 1, 2011 11:06:26pm

Now you get an "email posting" disabled message ... I wonder if they'll try to re-enable this feature, hopefully not.
Image: email-posting-disabled.png

10 Alexzander  Thu, Jun 2, 2011 12:12:23am

Good research.

Here is a possible complication: All of your given email addresses were the same, with the addition of a period. It is possible that the yfrog generated word is based off of one's email address. Hence the proximity of all of the given generated words. For completeness's sake, you should test radically different email addresses.

11 ElCapitanAmerica  Thu, Jun 2, 2011 12:54:39am

re: #10 Alexzander

Good point, however the last 3 emails are very dissimilar (although 2 of them are gmail addresses too). So the "personal_twitter2" account (that's not the real name of the account) is actually the one that matches with the word "lusion", see lines 1 and 27.

12 Obdicut  Thu, Jun 2, 2011 3:09:43am

re: #10 Alexzander

He did.

13 CuriousLurker  Thu, Jun 2, 2011 4:38:17am

Excellent page—thanks.

14 CuriousLurker  Thu, Jun 2, 2011 5:53:54am

I'd like to point out that it also wouldn't hurt to enable the "always use HTTPS" feature if you tweet using your browser. You'll find the option in your account setting at the very bottom, after the media & privacy settings:

Twitter HTTPS option

15 ElCapitanAmerica  Thu, Jun 2, 2011 7:33:39am

OK, a little update.

Several people have reacted to this post with the following argument:

Guessing the yfrog email wouldn't work because yfrog would lock down and disable the post by MMS/email feature as soon as it detected 3 failed emails for your twitter name.

Well, they could have done this and I didn't try to flood my test accounts with dozens of invalid email addresses. However before this test, I did try to send *exactly* 3 invalid emails to my main twitter account. Then the 4th message (with the correct email address) worked.

I think it's unfortunate that people are claiming this when they really didn't try it. I'm pretty sure they wouldn't do this for 3 failed attempts. Could they have been doing it for 4, 10, 50? Don't know.

If they did do this however, then it could prove very annoying to legitimate users though. It would mean all I'd have to do to disable MMS posting is to flood an account with random words (with a few emails) and voila, I just locked you out.

I was also "challenged" by somebody on twitter to post an image to their account. First, I'd rather not, I would rather test on one of my own accounts. But more importantly, you can't try this as of last night because the feature has been disabled.

These are the facts. If you have technical arguments to refute them, and can be backed up by evidence, please let me know but if you want to guess what yfrog does I can't really help you much there.

16 Obdicut  Thu, Jun 2, 2011 8:20:07am

re: #15 ElCapitanAmerica

I'd just like to note that if the lockout time was anything at all short, this would just mean the hack would take longer to work. Given that there seems to be a dictionary, the permutations are not actually that high. If you got locked out for every 10 attempts for one hour, that's still 240 attempts a day, 1,680 a week. It took you 27 attempts to do it.

17 eightyfiv  Thu, Jun 2, 2011 11:53:40am

Good stuff. Wow, those are low-entropy "nonces". Lunacy.
Even if they weren't using a stupid algorithm or a fixed dictionary, requiring phonetic plausibility drastically reduces the variability and hence increases the crackability, meaning you need to about double the length of your passwords -- a short, memorable 5-8 character word is hopelessly tiny. The whole idea here is broken.

18 eightyfiv  Thu, Jun 2, 2011 12:26:09pm

Actually... Given that it took you about 25 tries to find two duplicate nonce words, we can very roughly estimate the total size of the dictionary of possibilities -- it's the well-known birthday problem. You should expect to find your first duplicate around when the probability of having one hits on the order of 50%. How many distinct possibilities do there need to be for 50% probability at around 25 samples? It's about 450 (on the order of 25^2). Amusingly, this is almost identical to the 23 people needed for an expected 50% chance of a duplicate birthday!

I'm sure a statistics buff could give a more rigorous analysis, but roughtly speaking, at the leisurely pace of 1-2 guesses a day, it would take about a year to break someone's account. FAIL.

19 ElCapitanAmerica  Thu, Jun 2, 2011 2:40:06pm

re: #18 eightyfiv

Interesting, the more you analyze it the simpler it seems.

I'm very curious to see if they enable this "service" back up, and if they do, what new scheme they will use and what they'd do with the existing users.

The reasonable thing is to avoid this feature in the first place.

20 ElCapitanAmerica  Thu, Jun 2, 2011 7:38:49pm

yfrog is not being very honest about the current situation, issue security statement;

[Link: littlegreenfootballs.com...]


This page has been archived.
Comments are closed.

Jump to top

Create a PageThis is the LGF Pages posting bookmarklet. To use it, drag this button to your browser's bookmark bar, and title it 'LGF Pages' (or whatever you like). Then browse to a site you want to post, select some text on the page to use for a quote, click the bookmarklet, and the Pages posting window will appear with the title, text, and any embedded video or audio files already filled in, ready to go.
Or... you can just click this button to open the Pages posting window right away.
Last updated: 2016-01-01 10:29 am PST
LGF User's Guide RSS Feeds Tweet

Help support Little Green Footballs!

Subscribe now for ad-free access!Register and sign in to a free LGF account before subscribing, and your ad-free access will be automatically enabled.

Donate with
PayPal
Square Cash Shop at amazon
as an LGF Associate!
Recent PagesClick to refresh
Banned Books That Shaped America The Library of Congress created an exhibit, "Books that Shaped America," that explores books that "have had a profound effect on American life." Below is a list of books from that exhibit that have been banned/challenged. (To learn more ...
Thanos
1 hour, 47 minutes ago
Views: 131 • Comments: 0 • Rating: 0
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
Fighting the Lone-Wolf Terrorist How is Donald Trump’s plan to wipe out terrorism in America going to rid the USA of lone-wolf terrorist attacks? During his campaign, he vowed to “unite the civilized world against radical Islamic terrorism, which we will eradicate completely ...
Samuel Vargo
2 hours, 57 minutes ago
Views: 1,061 • Comments: 2 • Rating: 0
Tweets: 1 • Share to Facebook
Shares: 10
Comments: 3
: 10
New Atheist Lord Mayor of Belfast Takes Heat for Not Offering Prayer at Installation Ceremony The city of Belfast, Northern Ireland elected a new Lord Mayor, Nuala McAllister. She is a young mother (age twenty-eight and served on the city council for three years), and ran on a campaign of honesty. She has a ...
Anymouse 🌹
1 day, 3 hours ago
Views: 189 • Comments: 0 • Rating: 2
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
Iran Tests Missile Despite Trump Pressure Iran says it has successfully tested a new-medium range missile, in defiance of US President Donald Trump. The launch of the Khoramshahr missile, which has a range of 2,000 km (1,242 miles), was shown on state TV. It is ...
Thanos
1 day, 8 hours ago
Views: 284 • Comments: 0 • Rating: 0
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
Russia Turns on Morgan Freeman Over Election ‘War’ Video Want to weed some alt right Putin pawns from your twitter fee? Just look for the ones attacking Morgan Freeman with Russia Today meme and themes this week. Russia has aimed its entire media arsenal at the veteran Hollywood ...
Thanos
1 day, 8 hours ago
Views: 262 • Comments: 0 • Rating: 1
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
Scientists Closing in on the Dawn of Plate Tectonics But over time the world gradually became less bleak. Today Earth also harbors light-colored rocks, like the granite that composes Half Dome in Yosemite National Park. But scientists remain uncertain as to when the world started to transition from ...
Thanos
1 day, 10 hours ago
Views: 288 • Comments: 0 • Rating: 1
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
Expert’s Advice: Don’t Engage With the Alt-Right on Campus The event, organized by the campus’s Division of Equity and Inclusion, comes ahead of a series of student-sponsored events next Sunday through Wednesday that are expected to bring right-wing speakers to campus for noon and evening rallies, although the ...
Thanos
2 days, 10 hours ago
Views: 593 • Comments: 0 • Rating: 1
Tweets: 38 • Share to Facebook
Shares: 2
Comments: 0
: 2
Mass Protest in Philippines Over Duterte ‘Dictatorship’ Opponents criticised Mr Duterte's open threat to reinstate martial law and his brutal war on drugs that has killed thousands. Thousands also attended rival pro-Duterte rallies. Mr Duterte's own son Paolo is facing allegations of drug trafficking. The president ...
Thanos
2 days, 20 hours ago
Views: 682 • Comments: 0 • Rating: 0
Tweets: 28 • Share to Facebook
Shares: 2
Comments: 0
: 2
the Killers - Run for CoverArtists: The KillersDirected By: Tarik MikouCo-Directed By: Eric MorinWritten By: Flowers, Stoermer, Vannucci, Price, Cameron, Lee, MarleyProducers: Jacknife Lee, Daniel Jean, Olivier Picard, David Pierrat(C) 2017 Island Records, a division of UMG Recordings, Inc. vevo.ly
Thanos
4 days, 18 hours ago
Views: 601 • Comments: 0 • Rating: 0
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
(12) LATEST: 7.1 Magnitude Quake Kills 119 as Buildings Crumble in MexicoMexico’s federal government says the death toll in a magnitude 7.1 earthquake has risen to 119.
Thanos
4 days, 19 hours ago
Views: 656 • Comments: 0 • Rating: 1
Tweets: 1 • Share to Facebook
Shares: 0
Comments: 0
: 0