Live data from Hacker News

Instagram's Million Dollar Bug

exfiltrated.com

111–120 of 562 posts

Re: Instagram's Million Dollar Bug

#111
Wait a sec.

Look at his timeline again.

He tested the AWS creds in October.

They shut the server off on October 24.

He reported the AWS creds in December.

Did he tell them about the AWS creds before then? His mails don't say that he did.

If he didn't, why didn't he?

Re: Instagram's Million Dollar Bug

#112
post #81

Earlier quoted context omitted.

I don't know, but that's the security team's job; it is emphatically not the job of a bug bounty researcher to do that.

I don't know much about this which is why I asked. It seems that severity-based payouts have created incentives that do not match the program rules? Maybe all rce bugs should be paid out on an assumption that if used they'll lead to access to a shell or to user data.

Severity on a vulnerability assessment is based on the bug itself; it's the severity of the RCE.

Re: Instagram's Million Dollar Bug

#113
post #69

As a security researcher and engineer, I'd like to point out the following, without taking sides: 1. Facebook is not going ballistic because this is a RCE report. They have received high and critical severity reports many times before and acted peaceably, up to and including a prior RCE reported in 2013 by Reginaldo Silva (who now works there!). 2. The researcher used the vulnerability to dump data. This is well know…

[deleted]

Re: Instagram's Million Dollar Bug

#114
post #69

As a security researcher and engineer, I'd like to point out the following, without taking sides: 1. Facebook is not going ballistic because this is a RCE report. They have received high and critical severity reports many times before and acted peaceably, up to and including a prior RCE reported in 2013 by Reginaldo Silva (who now works there!). 2. The researcher used the vulnerability to dump data. This is well know…

[deleted]

Re: Instagram's Million Dollar Bug

#115
post #108

Earlier quoted context omitted.

"The Facebook Whitehat TOS explicitly forbid getting sensitive data that is not your own using an exploit." LAUGH.. Where does it say this? https://www.facebook.com/whitehat/ I think instagram should be asking themselves: Would they rather have an honest researcher report this or North Korean hackers not saying anything and just slurping data? Security Researchers are always going to see things they shouldn't. That's…

>If you give us reasonable time to respond to your report before making any information public, AND MAKE A GOOD FAITH EFFORT TO AVOID PRIVACY VIOLATIONS, destruction of data, and interruption or degradation of our service during your research, we will not bring any lawsuit against you or ask law enforcement to investigate you.

I certainly wouldn't consider dumping credentials to test for reuse/continued use a privacy violation. If FB wants people not to dump data, they need to make that explicit and specific.

Re: Instagram's Million Dollar Bug

#116

In my opinion, the author is feigning shock... He claims to have downloaded the content listed below. And he is surprised that Facebook responds coldly? Note the string "private keys" in this list... Doesn't the author know how long it will take them to recover from this breech? How much it will cost them? On the other hand, it does sort of re-enforce the idea that he should be paid handsomely, doesn't it? :) * Stati…

Key quote:

"Since the Faceboook Whitehat rules state that researchers need to "make a good faith effort to avoid privacy violations", I avoided downloading any content from those buckets"

Listing the contents of the bucket is very different from fetching them. Without listing the contents, he wouldn't know the severity of the vulnerability. There's nothing wrong with that.

Re: Instagram's Million Dollar Bug

#117
post #66

In my opinion, the author is feigning shock... He claims to have downloaded the content listed below. And he is surprised that Facebook responds coldly? Note the string "private keys" in this list... Doesn't the author know how long it will take them to recover from this breech? How much it will cost them? On the other hand, it does sort of re-enforce the idea that he should be paid handsomely, doesn't it? :) * Stati…

I would tend to agree. Facebook's point is that he found a vulnerability, and exploited it instead of stopping there. I kind of understand their point of view though. "See you have a vulnerability there, and then I can get access to this, and then this, and see now I have the password of your user, and then I'm just one click away from accessing all the instagram pictures I want." Although Facebook's handling of the…

Exploiting the bug would have been downloading the actual contents of the S3 bucket (the instagram source and other things). He specifically says he did not do that.

Re: Instagram's Million Dollar Bug

#118
post #84

Earlier quoted context omitted.

But that's not going to stop Facebook from publicizing that they will. You're glossing over the details and attributing an aire of "old news" to the bug. Well, yes / no. If he didn't find such an ancient bug but instead someone devious did, they could have dumped all the private user photos. If that happened, what do you think the financial implications might have been?

He got $2500 for that bug. I will venture a guess that that's the most any bug bounty program will pay for that Rails YAML bug in 2015.

[deleted]

Re: Instagram's Million Dollar Bug

#120
post #108

Earlier quoted context omitted.

>If you give us reasonable time to respond to your report before making any information public, AND MAKE A GOOD FAITH EFFORT TO AVOID PRIVACY VIOLATIONS, destruction of data, and interruption or degradation of our service during your research, we will not bring any lawsuit against you or ask law enforcement to investigate you.

I certainly wouldn't consider dumping credentials to test for reuse/continued use a privacy violation. If FB wants people not to dump data, they need to make that explicit and specific.

Really? The article states: "To say that I had gained access to basically all of Instagram's secret key material would probably be a fair statement". How on earth would holding on to that data not be a privacy violation?
Post reply on HN