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Secret Backdoor in Some U.S. Phones Sent Data to China, Analysts Say

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81–90 of 170 posts

Re: Secret Backdoor in Some U.S. Phones Sent Data to China, Analysts Say

#81

What's the big deal? Google does this on a much bigger scale and of course shares its data with the US government when asked. Why is it suddenly scary when a Chinese company does the same?

Because you agreed to it of course, after reading EULA of the OS, provider and your Google account very diligently, deciphering the lawyer speak and considering the implications.

cough

Re: Secret Backdoor in Some U.S. Phones Sent Data to China, Analysts Say

#83

Huawei routers used in Indian govt offices were found to be sending data to China. They were banned after the discovery. Wont be surprised if cellular components that are made in China send back data quietly.

People at HN would appreciate the corresponding links...

https://intelligence.house.gov/sites/intelligence.house.gov/...

Re: Secret Backdoor in Some U.S. Phones Sent Data to China, Analysts Say

#84

You cannot have privacy and security without free/libre software. While such doesn't doesn't guarantee privacy or security, operating systems that make an effort to build the system entirely from source without any proprietary components are much less likely to have a problem like this slip through the cracks of a large, active development community. Unfortunately, currently the only Android operating system to do th…

That's the old open source argument. And while many things could most certainly be discovered by extensive, costly audits, that someone has to pay for... OS code bases are huge. How difficult would it be to hide functionality like this in some obscure code that's camouflaged as something else? How hard would it be to automatically install an app that does this after first boot, disguised as some self updating or anal…

The source code is not the only condition for security. However it drastically decreases the threshold for the audits. People can even make a crowdfunding campaign and pay to professionals like it was done with TrueCrypt.

But even without such a campaign, evil developers would be in a constant danger that someone may discover a backdoor. It is a very unstable situation: just one person is enough to make a lot of noise, and everyone could be this person. And yes, people do read the sources:

https://www.fsf.org/blogs/community/who-actually-reads-the-c...

It's all about defense in depth:

https://en.wikipedia.org/wiki/Defense_in_depth_%28computing%...

Re: Secret Backdoor in Some U.S. Phones Sent Data to China, Analysts Say

#85
post #26

H guys, I'm one of the researchers with kryptowire if you have any questions

Hey duked. I just returned from Hong Kong (on vacation) and used two BLU Advance 5.0 phones as burners for use while in-country. I take precautions whenever I travel overseas.

I've got two phones here that were used during my trip there. I was wondering if you had any tips for figuring out of they were compromised or otherwise owned while I was out there.

Re: Secret Backdoor in Some U.S. Phones Sent Data to China, Analysts Say

#86
I have a chinese Android phone. Instead of connecting it to the Internet I connected it to my computer over bluetooth and started monitoring the traffic it tried to send. There were attempts to connect to Google servers and chinese manufacturer's servers. The data sent to China was supposed to contain sensitive information like phone number or SIM card identifier.

It also has an auto-update (read: backdoor) feature that cannot be disabled.

I ended up making a linux-based whitelist firewall to access the Internet but it is pretty inconvinient because I have to manually enable every new host. And I can use it only at home.

As a consumer I am very disappointed and feel being deceived by Google. I know about "you are the product" saying but the smartphone is not free. I bought an expensive (two hundred dollars!) device and I had to spend a lot of my time to be able to control its activity. And of course the advertisement never mentioned that a smartphone is going to spy on me.

We need a law against this.

Re: Secret Backdoor in Some U.S. Phones Sent Data to China, Analysts Say

#87

You cannot have privacy and security without free/libre software. While such doesn't doesn't guarantee privacy or security, operating systems that make an effort to build the system entirely from source without any proprietary components are much less likely to have a problem like this slip through the cracks of a large, active development community. Unfortunately, currently the only Android operating system to do th…

That's the old open source argument. And while many things could most certainly be discovered by extensive, costly audits, that someone has to pay for... OS code bases are huge. How difficult would it be to hide functionality like this in some obscure code that's camouflaged as something else? How hard would it be to automatically install an app that does this after first boot, disguised as some self updating or anal…

The promise of reproducible builds divides-and-conquers the system, allowing us to validate individual components. From there, we need to be concerned about how well the source code for each component is managed.

Projects have the option to only accept contributions from known entities. If your identity is public knowledge, trying to sneak a backdoor into version control is high-risk.

Openness is viable stratagem for hardening and reducing the attack surface. It does not have to be perfect to make meaningful improvements towards a layered defense.

Re: Secret Backdoor in Some U.S. Phones Sent Data to China, Analysts Say

#88
post #66

Earlier quoted context omitted.

We did work with DHS and notify all the parties ahead of the press release. We also remember carrierIQ ! We have a comparison table here: http://www.kryptowire.com/adups_security_analysis.html

So you didn't tell the Federal Trade Commission, even though they previously investigated (and punished) HTC for doing something similar?

Curious, do security researchers typically liaise with the FTC when vulnerabilities are discovered? This and your parent comment seem to imply a 'yes' but this doesn't seem like an obvious connection (to me at least). I would expect the first point of contact at DHS to flag this for other agencies' attention if they felt it was necessary. Should DHS feel territorial about this and be reluctant to contact outside agencies that's on them, not the researcher.

I wonder if many security researchers know to routinely shop their findings to multiple agencies independently. It doesn't seem like this is common knowledge.

Re: Secret Backdoor in Some U.S. Phones Sent Data to China, Analysts Say

#89

I have a chinese Android phone. Instead of connecting it to the Internet I connected it to my computer over bluetooth and started monitoring the traffic it tried to send. There were attempts to connect to Google servers and chinese manufacturer's servers. The data sent to China was supposed to contain sensitive information like phone number or SIM card identifier. It also has an auto-update (read: backdoor) feature t…

Are there are any consumer protection laws that would help here, for example, to obtain a full refund if it is proven that a manufacturer and retailer sold you a product full of spyware?

Re: Secret Backdoor in Some U.S. Phones Sent Data to China, Analysts Say

#90
I used to analyze mobile malware and the line of what was OK and what wasn't really came down to how big the company was. If it was an unknown firm set up as analytics / advertising, it was fine to block. If it was a mega analytics / advertising it was not malware because it was a massive company.
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