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Show HN: A Way To Hack HN's Karma

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11–20 of 38 posts

Re: Show HN: A Way To Hack HN's Karma

#11
post #10

I saw this but don't really consider it much of a problem. It's the kind of thing that you can't really exploit. It'd be obvious if you really tried to use it for evil and then PG would kill your account.

If HN has some sort of redirect to any URL page (eg, redirect.ashx?url=http://www.google.com I don't know if HN does but a lot of sites do in some form) then it could be exploited possibly

Re: Show HN: A Way To Hack HN's Karma

#12
post #10

I saw this but don't really consider it much of a problem. It's the kind of thing that you can't really exploit. It'd be obvious if you really tried to use it for evil and then PG would kill your account.

Not necessarily. You could make the CSRF request on, for example, 80 percent of the views to make it look legit. You could even take a more sophisticated approach and start by automatically upvoting for 100 percent of logged in users just to get on the front page and dampening once your story rises in the rankings.

Re: Show HN: A Way To Hack HN's Karma

#13
I had always assumed this was impossible because my votes have an auth key attached. Does this mean that the auth key is not used and is just there to trick casual observers into thinking there is security?

    vote?for=3742852&dir=up&by=citricsquid&auth=478876d54494692615d9f2ca184fa9fab2fb9ff7&whence=%69%74%65%6d%3f%69%64%3d%33%37%34%32%37%34%32

Re: Show HN: A Way To Hack HN's Karma

#14

I had always assumed this was impossible because my votes have an auth key attached. Does this mean that the auth key is not used and is just there to trick casual observers into thinking there is security? vote?for=3742852&dir=up&by=citricsquid&auth=478876d54494692615d9f2ca184fa9fab2fb9ff7&whence=%69%74%65%6d%3f%69%64%3d%33%37%34%32%37%34%32

I'm guessing this security hole is a regression because I could have sworn I tried this before. But I don't remember for certain.

Re: Show HN: A Way To Hack HN's Karma

#16
I emailed PG about this a week ago, his response:

"It just seems to."

Normally loading the vote URL directly doesn't work because votes that don't have a HN referrer don't get counted. By submitting the URL to HN and getting people to click through a HN referrer gets sent making the votes look legitimate.

Re: Show HN: A Way To Hack HN's Karma

#17
An interesting bug, but if anything won't it just earn you fake points on a website, while making everyone on that website hate the account that's accruing the points, essentially making those "hacked" points' meaning moot anyway?

Re: Show HN: A Way To Hack HN's Karma

#18
post #8

Earlier quoted context omitted.

I don't think this is irresponsible, exactly. Mischievous, yes, but there's not a ton of damage being done and it's something we can laugh at and say "Hey, that was pretty good."

[deleted]

And how exactly would you insert an image on HN?
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