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AMD’s trusted execution environment blown wide open by new BadRAM attack (arstechnica.com)

submitted 2 weeks ago by [email protected] to c/[email protected]

15 comments fedilink hide all child comments

On Tuesday, an international team of researchers unveiled BadRAM, a proof-of-concept attack that completely undermines security assurances that chipmaker AMD makes to users of one of its most expensive and well-fortified microprocessor product lines. Starting with the AMD Epyc 7003 processor, a feature known as SEV-SNP—short for Secure Encrypted Virtualization and Secure Nested Paging—has provided the cryptographic means for certifying that a VM hasn’t been compromised by any sort of backdoor installed by someone with access to the physical machine running it.

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[–] [email protected] 99 points 2 weeks ago (2 children)

Looks like AMD has already patched it, also appears to affect older Intel versions of the same tech concept but not current generations.

Only really affects guests in multi tenant hypervisor environments, requires physical access to the hypervisor, requires external physical hardware, requires booting the host with said hardware attached, at some point this level of compromise is already absurd. This kind of research is important and shows that we still need to limit out level of trust with host providers but I don't think anyone needs to panic.

[–] [email protected] 46 points 2 weeks ago (1 children)

Kinda annoyed with Ars for perpetuating this trend of dramatized security vulnerability names and descriptions.

[–] [email protected] 8 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Ars went the way of Toms a while ago for me. There's some decent stuff to be found but most of it is click/rage bait.

[–] [email protected] 4 points 2 weeks ago

I still think it's generally more good than bad and I appreciate they provide an authenticated ad free RSS feed for subscribers, but I think this was one of their worst headlines.

[–] [email protected] 18 points 2 weeks ago (1 children)

If someone breaks into your home and shits your pants then they might be able to make you smell like shit.

[–] [email protected] 5 points 2 weeks ago (1 children)

Legit question: is the “he/she shits your pants” expression and generally shit verbiage own vogue or something?

I have to ask because I keep seeing it and I’m pretty sheltered from corporate social media (and probably larger Internet cultural trends overall).

[–] [email protected] 3 points 2 weeks ago

It's been a meme for a while I think. If I had to guess I'd say it started with some Tumblr thread. Obviously not entirely suitable for normal-speak, which is why it's on lemmy instead of a workplace slack channel.