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Uber investigating breach of its computer systems

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121–130 of 327 posts

Re: Uber investigating breach of its computer systems

#121
post #46

I think it's worth repeating: at this point, MFA that is not based on Webauthn ( https://webauthn.guide/#about-webauthn ) should be considered dangerously insecure. Uber almost certainly enforces MFA for remote access; I strongly suspect we'll end up hearing that it was successfully provided during the authentication step (update: screenshots on Twitter appear to confirm this). As we saw in the case of the 0ktapus ca…

It’s too bad the user experience across devices sucks. The best experience by far is a yubikey nano since it is mostly permanently attached to your laptop. It’s always there and you just quickly tap it. Love it. Of course that doesn’t work with my iPhone. So I guess I need a second NFC yubikey that stays on my key chain in my pocket (which I don’t have since I don’t carry keys.). So then I have to remember to registe…

>The best experience by far is a yubikey nano since it is mostly permanently attached to your laptop.

Unfortunately ports are increasingly at a premium. You basically need to "mostly permanently" block the use of one of your USB ports for this to work. It's OK with my old MacBook Pro which has a USB port I mostly don't need to use for other purposes but thinner/lighter laptops don't have a lot of ports to spare.

Re: Uber investigating breach of its computer systems

#122
post #98

Why are people talking about MFA on this thread. Look, as someone whose day job is responding to such incidents, someone targeting Uber and is persistent will get in, MFA or not. Infostealers for Mac are a thing (Uber is a mac heavy shop I hear) and that's all it takes to steal cookies and tokens post-mfa, or why even bother with that, if you're running code just make it a reverse shell. The big screw up here is powe…

There’s a trend of storing MFAs in password managers like 1Password. If the password manager is compromised then what was the point in having MFA…

So that you're protected from data breaches of the service itself (e.g. revealing a reused password)

Re: Uber investigating breach of its computer systems

#123

Earlier quoted context omitted.

Security is a cost center, not a profit center. Most companies cut that investment to the bone, which means paying the bare minimum that lets them check boxes. This is true for basically any non-tech company, and is true for like 75% of the tech companies. > You need to do the work upfront with Sec+ Sec+ is part of the paper mill parent is referring to. A book of terms to memorize for 3 months and then call it good.

+100 Not only is it a cost center it’s also seen as a hindrance to the fast progress. Rarely will you come across an exec who takes security seriously. For them it’s just a checkbox at best and an obstacle at worst. I’m speaking about application security though. It’s possible that IT sec, physical security etc are taken more seriously.

That is why government intervention is needed. Australia is proposing significant changes to its cyber security framework and legislation. https://www.homeaffairs.gov.au/reports-and-pubs/files/streng... Mandatory cyber security obligations backed by penalties and direct government intervention for critical national security companies. https://www.homeaffairs.gov.au/reports-and-pubs/files/exposu...

Re: Uber investigating breach of its computer systems

#125

Earlier quoted context omitted.

Smart cards have long been mostly phishing proof. WebAuthN is essentially a more convenient interface to the same technology.

Then your phishing involves them installing some type of remote access on their machines. Or to get some information you need

Don’t worry, we’ll cover this in annual mandatory security training.

Re: Uber investigating breach of its computer systems

#126

Forgive me for being frank, but how do people seriously fall for phishing scams? How do you work at a company like Uber and do something like click on a link in an email to claim a gift card? It’s insane to me.

https://arstechnica.com/information-technology/2022/08/im-a-... has a good example of how sophisticated phishing attempts can be. Even for less sophisticated messages, they can cast a really wide net and just need to find someone on a busy day with an urgent request from "their boss".

Re: Uber investigating breach of its computer systems

#127

I think it's worth repeating: at this point, MFA that is not based on Webauthn ( https://webauthn.guide/#about-webauthn ) should be considered dangerously insecure. Uber almost certainly enforces MFA for remote access; I strongly suspect we'll end up hearing that it was successfully provided during the authentication step (update: screenshots on Twitter appear to confirm this). As we saw in the case of the 0ktapus ca…

So, where does it end? Cybersecurity has been playing those silly games of "increasing security" and some 80% of recommendations were frankly BS "longer passwords" yes. "password has to have symbols, numbers and be rotated every 3 mo" no 2FA yes, but not SMS, but not OTP because people get fished, blah blah blah Not to forget the "put everything in a password manager" then you lose or forget your "extra safe random p…

> So where does it end?

It doesn't (can't) ever end because security is a process, not something you achieve and are done.

With ~inifite budget, one could achieve perfect security (but only for a clearly scoped threat model) for an instant, but both the infrastructure and the attackers move on, things constantly change, so it's not perfect anymore. And of course infinite budgets don't exist.

Re: Uber investigating breach of its computer systems

#128
post #46

I think it's worth repeating: at this point, MFA that is not based on Webauthn ( https://webauthn.guide/#about-webauthn ) should be considered dangerously insecure. Uber almost certainly enforces MFA for remote access; I strongly suspect we'll end up hearing that it was successfully provided during the authentication step (update: screenshots on Twitter appear to confirm this). As we saw in the case of the 0ktapus ca…

It’s too bad the user experience across devices sucks. The best experience by far is a yubikey nano since it is mostly permanently attached to your laptop. It’s always there and you just quickly tap it. Love it. Of course that doesn’t work with my iPhone. So I guess I need a second NFC yubikey that stays on my key chain in my pocket (which I don’t have since I don’t carry keys.). So then I have to remember to registe…

If you have a Linux PC with a TPM, you can use https://github.com/psanford/tpm-fido to create and "plug in" a virtual USB WebAuthn key whose secret is irretrievably stored in the machine's TPM. This effectively asserts that your specific machine is being used to enter a given site. However, it's important to remember it doesn't necessarily verify that *you're* present, or even if *anyone* is present at all, since the presence check is done via a software dialog and can be pwned along with the rest of the system.

Re: Uber investigating breach of its computer systems

#129
post #27

Earlier quoted context omitted.

> - Socially engineer an employee to get on their VPN (could have been prevented with webauthn / hardware 2fa) Zero-trust may be a security meme at this point, the whole point of zero-trust is to make it so that once on your VPN, all of your stuff isn't immediately pwned. You're supposed to have authentication at all layers, not just the corporate VPN edge. An insecure network share is a ticking time bomb, even if it…

People who call ZTN a meme are usually just ignorant. It's a very simple and effective solution. Mutual authentication, explicit authorization, attestation, and auditing. Not exactly buzz word soup.

> People who call ZTN a meme are usually just ignorant.

It's become a "meme" because it is used in endless irrelevant ways. So many companies are pushing zero-trust solutions that don't have anything to do with the basic idea of requiring access control at every endpoint.

Also, while it is a very sound practice, there's also the hyped idea that it replaces everything else. Which is not very wise. You still want defense in depth over and above requiring acess control everywhere.

Re: Uber investigating breach of its computer systems

#130
post #66
post #46

Earlier quoted context omitted.

It’s too bad the user experience across devices sucks. The best experience by far is a yubikey nano since it is mostly permanently attached to your laptop. It’s always there and you just quickly tap it. Love it. Of course that doesn’t work with my iPhone. So I guess I need a second NFC yubikey that stays on my key chain in my pocket (which I don’t have since I don’t carry keys.). So then I have to remember to registe…

> I wonder when I can just get a virtual yubikey built into my phone. No extra device. My phone is my device. Last year, Apple shipped the first version of this: you can enroll your phone (or TouchID-equipped Mac) on sites like GitHub.com and it’ll use the Secure Enclave for WebAuthn secrets. I’ve been doing this since 15.4 came out and it’s great. Prior to that, I used a Yubikey 5 with USB and NFC, which is still ha…

How do you recover if you lose access to your device?
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