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Tuesday, August 9, 2016

Big Time Infosec Issue!

Updated: five more point-of-sale systems breached. More info on how long the breach existed. And yet more info on where the compromises might have hit you. More identity information for Carbanak.

Did you ever get a message in a email that says: "We're letting you know your card may have been part of a compromise at an undisclosed merchant."? And not to worry because "We're Issuing You a New Card To Help Keep Your Information Safe". In title case, no less (thanks, daring fireball, for that link).

Apparently the time has come when data compromise becomes huge. Anybody who watches Mr. Robot probably knows that credit card hacking is a serious issue, and can get much more serious. We keep closing insecure points as they are discovered, of course. But, it seems, there are still plenty of ways to get into our credit card data stream.

One such way is through the Oracle MICROS system that handles point-of-sale transactions with credit cards (specifically at restaurants, delis, and hospitality points of sale). Apparently it is possible to rootkit these transaction processors, take control of them, and capture your name, credit card number, and secret code as it goes by. And, of course, send that data to the identity thieves.

Update: five more systems are reported by Forbes to be hacked, possibly by the same Russian cybercrime gang. These are UK-based Cin7, ECRS, Bankcard Services' Navy Zebra, PAR Technology, and Uniwell.

What Happened?

According to Krebs on Security, malware was placed on some internal Oracle server at their retail division. They thought it was just a small number of systems until they upgraded their security software to a new version. And at that point, they realized more than 700 systems were compromised! From there, it spread into the MICROS point-of-sale processors that accept your credit card and verify little things like that little gold chip on it. That was supposed to make the credit card SO much more secure.

The bottom line for us, the customers, is that the breach was detected only on July 25, 2016. And here's the catch: they don't really know how long it's even been active. Could be months.

Update: Bad news! There is info from HEI hotels that the breach might have existed since March, 2015.

Who Did It?

This is a very sophisticated hack. This was no script kiddie.

Apparently the Carbanak cybergang is responsible. According to Kaspersky, they stole $1B by attacking bank system intranets in an advanced persistent threat (APT) campaign culminating last February. This gang is a big time threat, and we have stumbled onto one more page in their playbook.

It gets even more interesting. Carbanak is connected to a Mr. Tverinov, as reported by Krebs, and supported by the sleuthing of Ron Guilmette. Artim Tverinov is CEO of InfoKube, a Russian security firm, that builds the LioN anti-virus application. A Trojan horse?

It's not rocket science - Krebs, while communicating with the shadowy Mr. Tverinov through the Vkontakte Russian social-media site, literally eye-witnessed Tverinov's Vkontakte page get deleted! This was followed by a direct-email denial of any and all wrongdoing.

Supposedly Russia arrested 50 alleged members of the Carbanak cybercrime gang on June 1, 2016. Kaspersky Lab helped to identify the hackers charged, but Tverinov wasn't among them.

It also seems that Carbanak was using a C&C server that is tied to the FSB (the successor of the KGB). This according to Security Affairs.

Update: Carbanak is sometimes also known as Anunak.

Where Was I Most Likely Compromised?

This would have occurred at a chain restaurant, or perhaps a modern restaurant that is taking advantage of modern technology. And you would have used your credit card to pay. Unfortunately, this is not too unlikely a scenario, is it?

You might have seen a colorful point-of-sale display on a tablet or monitor (like this one) at a restaurant, hotel, deli, charcuterie, or even a burger chain.

Update: Forbes, in the same article as the above update, reports that your credit card might have been compromised at Donald Trump's Hotel group, Hyatt, Kimpton, or one of 1000 Wendy's restaurants. Also consult the list of hotels in the HEI list.

The Big Android Hack

Qualcomm GPUs and kernel modules are vulnerable to being rootkit'ed. This involves a huge number (900 million) Android devices. They are called the QuadRooter vulnerabilities, as explained by security researcher Adam Donenfeld in his blog post. This affects the Samsung Galaxy 7, the most popular Android device.

On another note, the Blackberry DTEK 50, "the most secure smartphone in the world" utilizes a Qualcomm 8992 Snapdragon 808 Hexa-Core, 64 bit with Adreno 418, 600MHz GPU. And so it is also vulnerable to four of the flaws.



3 comments:

  1. Just saw Alex Gibney's movie "Zero Days" last night. Great expose and analysis of the Stuxnet episode and its wider implications.

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  2. Stuxnet represents a quantum leap in modular, configurable viruses - with rootkit'ing as one module. This is likely the state actors US and Israel. Consider that this virus still is being modified and used - Gauss is one example. It watches browser activity in online banking transactions. Once the code gets out there, another adversary (like Carbanak) just reverse-engineers it and modifies it for their own purposes, adding modules.

    I think this is why Stuxnet trims modules - both to be small and efficient, and also to prevent adversaries from getting the entire toolshed all at once.

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