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Re:Cloak and dagger – a new kind of attacks for Android by etjossem on Wednesday May 24, 2017 @06:24PM (#14413934)
From the section marked "Responsible Disclosure":

> Current — All the attacks discussed by this work are still practical, even with latest version of Android (Android 7.1.2, with security patches of May 5th installed).

Honest question - does HN feel this is actually responsible disclosure? A large number of Android devices seem to be vulnerable to the issue, and the whitepaper includes exploit details. Is the intent to force Google to pay attention to the issue?

Re:Cloak and dagger – a new kind of attacks for Android by tptacek on Wednesday May 24, 2017 @06:28PM (#14413956)
There's no such thing as "responsible disclosure".

The term is, quite literally, an Orwellian scheme to promote vendor interests as if they were naturally shared by those of researchers and users. A more neutral term is "coordinated disclosure". We can discuss how carefully coordinated things are, but there is --- to say the least --- a lot of disagreement about how much responsibility researchers have for coordinating this kind of stuff with vendors who shouldn't be shipping vulnerable code in the first place.

A warning in advance, though: this is a pretty boring discussion to be having on a thread about a new kind of vulnerability. Better that we should be talking about the merits of the paper itself.

Re:Cloak and dagger – a new kind of attacks for Android by gok on Thursday May 25, 2017 @12:46AM (#14415338)
So all disclosure is responsible? Or no disclosure is responsible?
Re:Cloak and dagger – a new kind of attacks for Android by rtpg on Thursday May 25, 2017 @05:30AM (#14416207)
I don't get this logic that much.

Your neighbor left their door unlocked. You have their phone number. You can call them to tell them first, and make a funny FB post about the event afterwards. Or you could just post about it on FB.

Not to mention that the users of the software are the ones who suffer the most. Seems pretty ethical to at least try to get the issue fixed.

Re:Cloak and dagger – a new kind of attacks for Android by rahkiin on Thursday May 25, 2017 @06:22AM (#14416388)
A better analogy would be: You discover that all doorlocks of some vendor can easily be opened without the key, including your neighbors. So you tell the vendor. The vendor does nothing about it for 6 months, so you decide to tell everyone who has the lock instead so they can fix/change it.
Re:Cloak and dagger – a new kind of attacks for Android by rtpg on Thursday May 25, 2017 @06:25AM (#14416398)
Would that not fall into responsible disclosure? Maybe the definition I have is different

I would think that if you make an honest and serious attempt to coordinate with the vendor, it's responsible.

Re:Cloak and dagger – a new kind of attacks for Android by omginternets on Thursday May 25, 2017 @07:07AM (#14416542)
I think his point is rather that "responsible" is a weasel-word.
Re:Cloak and dagger – a new kind of attacks for Android by pmontra on Thursday May 25, 2017 @05:40AM (#14416231)
They contacted Google on August 22nd, 2016 and Google decided to do very little about it. At least we know there is a problem now and we can take mitigation actions.
Re:Cloak and dagger – a new kind of attacks for Android by jrochkind1 on Thursday May 25, 2017 @08:42AM (#14416926)
It would be irresponsible and being a bad neighbor to post on social media about your neighbors door being unlocked at all ever, really.

But you might want to tell your neighbors housemates about it if your neighbor keeps leaving the door unlocked and they haven't noticed but you have. Or worse, if your neighbor is making duplicates of his keys and handing them out around the neighborhood.

The flaw in the analogy is that your neighbors door being unlocked effects nobody but your neighbor and their housemates.

Re:Cloak and dagger – a new kind of attacks for Android by etjossem on Wednesday May 24, 2017 @06:42PM (#14414018)
Like it or not, the average smartphone user's security is at the mercy of their vendor. The pace and priority of updates is not up to the typical device owner, nor do security researchers have any say - it's up to Apple and Google. Fully exposing flaws in the software they write can have a real impact on millions of people who don't have much of an alternative.

If you as a security researcher reasonably believe the vendor has neglected to patch the vulnerability, and you release exploit details, you have made things less safe for security-unaware users. There's no way around that. You already gave the vendor the opportunity to fix the problem. Now you are giving attackers the tools they need to take advantage of it.

You and I might care about abstract principles of corporate responsibility, but the typical user just wants to avoid getting phished, and I can't help but feel open disclosure has a lot of potential to harm them. I hope it's worth it.

Re:Cloak and dagger – a new kind of attacks for Android by sgift on Wednesday May 24, 2017 @06:47PM (#14414039)
> If you as a security researcher reasonably believe the vendor has neglected to patch the vulnerability, and you release exploit details, you are amplifying the current harm it's inflicting.

At least the public now has a fair chance to evaluate if they want to use their devices despite this vulnerabilities.

Re:Cloak and dagger – a new kind of attacks for Android by etjossem on Wednesday May 24, 2017 @06:51PM (#14414060)
That's true, but it glibly ignores the reality of vendor lock-in. The average non-infosec human is not going to switch devices because of a vulnerability whitepaper. This "vuln-insensitive user" is better served by giving the vendor a longer timeline to take care of the issue, rather than releasing exploit details two weeks after someone changed a status on a ticket.
Re:Cloak and dagger – a new kind of attacks for Android by AstralStorm on Thursday May 25, 2017 @09:39AM (#14417191)
Then fight the lock-in, in court if necessary. Tort lawyer will have some fun with it if you can show you cannot evade losses of secure data.

I am pretty sure the line of defence will be weak "no warranty" claim that has nothing to do with lock in.

Re:Cloak and dagger – a new kind of attacks for Android by chipperyman573 on Wednesday May 24, 2017 @09:26PM (#14414711)
I feel that this rebuttle is silly. Nobody outside HN (and similar) will understand what this means. And, even if they do, many users cannot afford to buy an iPhone (the only real competition) just because of one security flaw that might affect them. Even then, the opportunity cost of switching is not minimal.
Re:Cloak and dagger – a new kind of attacks for Android by ocdtrekkie on Wednesday May 24, 2017 @11:11PM (#14415060)
The fact that the only competition is unaffordable to a product with 85% global market share is a strong indicator we need to bust a monopoly for the public interest.
Re:Cloak and dagger – a new kind of attacks for Android by amygdyl on Thursday May 25, 2017 @08:45AM (#14416935)
I wonder if Apple was perceived to be playing a security first product approach, whether this same audience would not be able to find a far more forgiving view of the Apple price list?
Re:Cloak and dagger – a new kind of attacks for Android by csydas on Thursday May 25, 2017 @03:59AM (#14415961)
At the same time, it's a real "damned if you do, damned if you don't" situation, isn't it?

It is well documented that vulnerabilities are traded and sold freely online at various forums; since this isn't really a 0-day or an exploit as much as it is a new spin on a classic trick, there's no value in malicious actors hoarding the secret, especially since it's mostly a social engineering trick not an actual exploit.

In this particular case, the weight of the options seems to be "Make key users aware and put public pressure on vendors at the cost of giving a few bad actors an idea they didn't have before" versus "prevent giving a few more bad actors a new idea at the cost of Users being in the dark and vendors having no reason to address the issue"

The cost in this case seems pretty minimal, given that I'd assume there's no reason to really hang onto such a tactic.

For other exploits, it's basically the same idea: Who has the exploit, how likely is it that it's been sold, is the vendor likely to do anything about it, how dangerous is it to users? In most cases, if the exploit is already known and used among bad actors freely, what benefit is there to users in keeping such exploits hidden just to prevent a few more bad actors from doing it as well? Just seems like if the house is on fire, there's no sense in worrying about the wallpaper. (paraphrasing the quote since I can't remember its origin)

Re:Cloak and dagger – a new kind of attacks for Android by tptacek on Wednesday May 24, 2017 @06:53PM (#14414067)
I don't really care what you believe about this stuff --- you're entitled to your opinions! --- as long as we're clear that people probably shouldn't be perpetuating the term "responsible disclosure".
Re:Cloak and dagger – a new kind of attacks for Android by etjossem on Wednesday May 24, 2017 @06:58PM (#14414097)
And I don't really care what you call this stuff! "Coordinated disclosure" is a good value-neutral term and I appreciate the reasons why you prefer it. I'm just trying to get a discussion going on which approach, if any, is most responsible (lowercase).
Re:Cloak and dagger – a new kind of attacks for Android by stordoff on Wednesday May 24, 2017 @06:39PM (#14414007)
The issues are marked as "won't fix". The only responsible course of action, IMO, at that point is to publicly announce the vulnerability.
Re:Cloak and dagger – a new kind of attacks for Android by devinl on Wednesday May 24, 2017 @07:05PM (#14414136)
One thing that is kind of unique about this vulnerability is that users can actually prevent attacks from happening by checking the permissions on an untrustworthy app because google has permissions controls built in for the features that are being abused here.

The heart of this vulnerability is more in that these settings aren't clear on their implications and there are bad defaults. Disclosing to users seems to be a responsible thing to do since users can prevent an attack on their own device (especially given google's response of "working as intended").

Re:Cloak and dagger – a new kind of attacks for Android by etjossem on Wednesday May 24, 2017 @07:08PM (#14414151)
This is insightful, thanks. In this specific case, you're absolutely right that users themselves can take steps to mitigate the risk. If users come to understand the real meaning of granting permissions as a result of this disclosure, that's better for everyone.

Definitely a factor to take into account, particularly when deciding how the information will be publicized.

Re:Cloak and dagger – a new kind of attacks for Android by Jare on Wednesday May 24, 2017 @07:13PM (#14414179)
Malicious actors may find the vulnerability just like researchers did, so if the issue is not being fixed, the only responsible thing is to inform everyone of the potential danger they _already_ are in, and let them decide.

The bells & whistles of giving it a fancy name, domain, etc suggest an additional layer of intent with the disclosure, but that's a separate issue because they have followed reasonable procedures beforehand.

Re:Cloak and dagger – a new kind of attacks for Android by etjossem on Wednesday May 24, 2017 @07:25PM (#14414240)
Malicious actors and users will be alerted in equal measure, but the typical Android phone owner will tend to do nothing in response to a new security paper, while malicious actors will tend to write exploit scripts.

That's the main concern going through my mind when I see this. It would be different if the average user was a business, a developer, a security professional - but this isn't Heartbleed and we're talking about normal people this time. Are they even going to read this, and if so, what can they do besides keep an eye on their permissions?

Re:Cloak and dagger – a new kind of attacks for Android by Jare on Wednesday May 24, 2017 @08:01PM (#14414379)
> Malicious actors and users will be alerted in equal measure

You have to assume malicious actors will find the vulnerability on their own, if they haven't already. They are already alerted.

Re:Cloak and dagger – a new kind of attacks for Android by etjossem on Wednesday May 24, 2017 @09:36PM (#14414739)
Absolutely, but widespread disclosure does nothing to stop that from happening, and may actually enable less-sophisticated attackers to do things they weren't capable of before.
Re:Cloak and dagger – a new kind of attacks for Android by AstralStorm on Thursday May 25, 2017 @09:44AM (#14417212)
Assuming those less sophisticated attackers don't just buy the exploit from more sophisticated ones.
Re:Cloak and dagger – a new kind of attacks for Android by plaguuuuuu on Wednesday May 24, 2017 @11:14PM (#14415069)
>but the typical Android phone owner will tend to do nothing in response to a new security paper, while malicious actors will tend to write exploit scripts.

If there are enough open, unpatched exploits people will switch to other phone vendors.

Re:Cloak and dagger – a new kind of attacks for Android by crazyhatfish on Thursday May 25, 2017 @06:11AM (#14416344)
I seriously doubt that. Some sources have use of WinXP at 7 percent, it should be zero, and there are plenty of open, unpatched exploits for WinXP.
Re:Cloak and dagger – a new kind of attacks for Android by vvanders on Wednesday May 24, 2017 @06:30PM (#14413964)
If you look at the timeline it details they disclosed the exploit and Google marked as won't fix which seems fair game for public release at that point.
Re:Cloak and dagger – a new kind of attacks for Android by larma on Wednesday May 24, 2017 @08:32PM (#14414527)
Everything but the info about apps becoming the permission granted automatically by Play Store was already used by malware over a year ago.

https://www.skycure.com/blog/accessibility-clickjacking/

Re:Cloak and dagger – a new kind of attacks for Android by omgtehlion on Thursday May 25, 2017 @05:13AM (#14416169)
Absolutely responsible.

They should have went public earlier, like August_22nd_2016 + 90days (this is what google themselves does)