<![CDATA[New DDRop Attack Breaks Intel TDX and AMD SEV-SNP Confidential Computing]]>Researchers have disclosed a new hardware attack dubbed DDRop that defeats memory protection in Intel and AMD confidential computing environments. The technique works by silently dropping writes to a server's memory, causing the processor to keep reading stale encrypted data as though it were still current.

According to the disclosure, carrying out the attack requires a specific starting position: the adversary must already control the server's software and be able to briefly access the machine in order to insert a small circuit. From there, the dropped writes undermine the integrity guarantees that confidential computing relies on.

Key points:

  • DDRop targets memory protection in Intel and AMD confidential computing.
  • The mechanism involves silently dropping writes to server memory.
  • The processor then continues reading old encrypted data as if it were up to date.
  • Prerequisites: existing control over the server's software and brief physical access to insert a small circuit.

Source: The Hacker News

Does your organization run Intel TDX or AMD SEV-SNP workloads, and if so, what compensating controls are you considering while more details emerge?

]]>https://xploitlk.com/topic/336/new-ddrop-attack-breaks-intel-tdx-and-amd-sev-snp-confidential-computingRSS for NodeTue, 27 Oct 2026 09:28:43 GMTMon, 14 Sep 2026 18:30:20 GMT60