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I found Prezi's source code

blog.shubh.am

11–20 of 266 posts

Re: I found Prezi's source code

#12
I don't understand why companies start those bug bounties and later try to avoid paying out the rewards. If it were me, I'd book the reward amount as "spent" the minute I decided on a bug bounty hunt.

I think this is (yet another) lesson that participating in these kinds of bounty hunts is very risky and should only be done if the company is reputable (which this one apparently is not).

Re: I found Prezi's source code

#14
I think they acted pretty fairly by pointing out that it's the logging in that they have issue with. Although it's not as satisfying, I think Shubham could have submitted the link and credentials to Prezi without actually accessing the repo. In particular, the report email contains the snippet "... I explored the nexus console to confirm that ..." and I can understand Prezi not wanting to encourage pen testers to explore their systems, even if they find them open to the world.

Re: I found Prezi's source code

#15
post #3

"Out of scope". Wow. Even more worthwhile that such a huge out of scope bug was found. These companies seem to try anything to keep from paying bug bounties.

To be fair, there was a scope set, and the author was fully aware of it:

> I had spent a total of 2 hours sifting and crawling through their services which were in scope, but wanted to see if I could locate any other subdomains, with the assistance of google.

While I agree that he most certainly found a "bug" (perhaps flaw would be a better word), it was out of scope. And using credentials from an employee to log in is nearly always out of scope.

Re: I found Prezi's source code

#16
> "Anyways, they did try and get it right, by emailing me an apology as well as responding to my constructive criticism. This blog post, is by no means attempting to discourage people from participating from Prezi’s bug bounty, but rather just a blog post about how finding Prezi’s source code was not eligible for their bug bounty."

Passive aggressive much?

I think he should have got a bounty -- if not the official one, then a special, bigger one. However, this is an odd way to conclude the post. "Oh, I'm not at all trying to discourage others for participating, oh no no". Of course he's trying to discourage others. With justification. I don't get it.

Re: I found Prezi's source code

#17

There should be some neutral third party non-profit that adjudicates bug bounties so that security researchers don't need to worry that their efforts will go to waste. Companies could sign on to using this third party and pay a fee and put up escrow for the service. This would motivate researchers to find bugs for those companies that utilize the service, knowing payment will be impartial.

I agree, see Synack [1] (marketplace for bug bounties, with the bugs and rewards vetted by Synack). I think it's a huge opportunity.

[1] http://www.synack.com/

Re: I found Prezi's source code

#18
post #15
post #3

"Out of scope". Wow. Even more worthwhile that such a huge out of scope bug was found. These companies seem to try anything to keep from paying bug bounties.

To be fair, there was a scope set, and the author was fully aware of it: > I had spent a total of 2 hours sifting and crawling through their services which were in scope, but wanted to see if I could locate any other subdomains, with the assistance of google. While I agree that he most certainly found a "bug" (perhaps flaw would be a better word), it was out of scope. And using credentials from an employee to log in…

That said, he could have gone "gray-hat" and used the source to find in-scope bugs. Such a resource would be invaluable to an exploit author or bug bounty hunter.

Re: I found Prezi's source code

#19

> "Anyways, they did try and get it right, by emailing me an apology as well as responding to my constructive criticism. This blog post, is by no means attempting to discourage people from participating from Prezi’s bug bounty, but rather just a blog post about how finding Prezi’s source code was not eligible for their bug bounty." Passive aggressive much? I think he should have got a bounty -- if not the official on…

Probably doesn't want anybody pointing legal fingers at him for harming Prezi or something.

Re: I found Prezi's source code

#20
Exhibit A of why having a scope for bug bounties is a terrible idea. What is the point of testing your app for esoteric bugs when your entire source code and passwords can be Google dorked?
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