<![CDATA[New DDRop Attack Breaks Intel TDX and AMD SEV-SNP Confidential Computing]]>cross-posted from: https://lemmy.sdf.org/post/59167483

Requires physical access:

The attack requires an attacker who already controls the server's software and can briefly access the machine to insert a small circuit board, called an interposer, between the processor and a memory module.

So not like Spectre or Meltdown. I suspect we'll only see more and more vulnerabilities like this exposed as LLMs are used by capable security researchers and computer criminals to reduce the amount of work required to explore concepts that wouldn't have been worthwhile in the past.

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New DDRop Attack Breaks Intel TDX and AMD SEV-SNP Confidential Computing

DDRop uses server control and a DDR5 interposer to replay stale encrypted data in Intel TDX, Scalable SGX, and AMD SEV-SNP.

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The Hacker News (thehackernews.com)
]]>https://citiverse.it/topic/f24e9c46-85da-45ec-8a95-e721bc0dee51/new-ddrop-attack-breaks-intel-tdx-and-amd-sev-snp-confidential-computingRSS for NodeSat, 26 Sep 2026 04:19:07 GMTThu, 17 Sep 2026 02:24:02 GMT60<![CDATA[Reply to New DDRop Attack Breaks Intel TDX and AMD SEV-SNP Confidential Computing on Thu, 17 Sep 2026 18:57:55 GMT]]>it's amazing what you can accomplish if you had the epstein classes' resources at your disposal.

]]>https://citiverse.it/post/https://lemmy.ml/comment/27860161https://citiverse.it/post/https://lemmy.ml/comment/27860161Thu, 17 Sep 2026 18:57:55 GMT<![CDATA[Reply to New DDRop Attack Breaks Intel TDX and AMD SEV-SNP Confidential Computing on Thu, 17 Sep 2026 08:08:50 GMT]]>great. we are gonna need it to jailbreak our own computers.

]]>https://citiverse.it/post/https://lemmy.ml/comment/27850372https://citiverse.it/post/https://lemmy.ml/comment/27850372Thu, 17 Sep 2026 08:08:50 GMT<![CDATA[Reply to New DDRop Attack Breaks Intel TDX and AMD SEV-SNP Confidential Computing on Thu, 17 Sep 2026 03:14:56 GMT]]>What's remarkable is that they can extend the trace length without DDR5 timings shitting the bed lol. Can't even put 4 sticks in most boards without spooky interposers.

]]>https://citiverse.it/post/https://lemmy.world/comment/25866261https://citiverse.it/post/https://lemmy.world/comment/25866261Thu, 17 Sep 2026 03:14:56 GMT