NRDAX-T0280 - Spoofed Endpoint-Proof Bypass Amplification

memory_amp · active · first seen 2026-07-11

provenance: Reproduced in NullRabbit's attack-reproduction pipeline

mechanism

discv4 FINDNODE->NEIGHBORS reflection/amplification (NethermindEth/nethermind#12211): discv4 is Ethereum's connectionless-UDP node-discovery protocol. A ~170 B FINDNODE (packet-type 0x03) makes the no

instances (1)

chain	primitive	fidelity	origin	reproducer (bundle)	source
ethereum	discv4_findnode_amplification	lab	reverse-engineered-cve	discv4_findnode_amplification	NethermindEth/nethermind#12211 — 'Resolve some discovery dos vectors (which hive revealed)': discv4 (UDP node-discovery) DoS mitigation — endpoint-proof bonding tied to the exact UDP IP:port before honouring FINDNODE, plus a 50/50 request/response rate-limit split so NEIGHBORS response bursts can't starve legitimate queries. https://github.com/NethermindEth/nethermind/pull/12211

related (memory_amp)

NRDAX-T0023 - Coalesced Packet Buffer Leak active NRDAX-T0025 - Compact Block Size Integer Overflow active NRDAX-T0038 - Count Underflow Header Serving Amplification active NRDAX-T0042 - Crypto Frame Reassembly Buffer Exhaustion active NRDAX-T0046 - Decompression Bomb Resource Exhaustion active NRDAX-T0059 - Duplicate Transport Parameter Memory Leak active NRDAX-T0061 - Duplicate Tx Mempool Index Desync active NRDAX-T0071 - Ethash Verification Memory Exhaustion active

cite

https://nrdax.com/techniques/NRDAX-T0280

plain

NRDAX Registry. Technique NRDAX-T0280.

bibtex

@misc{nrdax_NRDAX_T0280,
  title = {Spoofed Endpoint-Proof Bypass Amplification (NRDAX-T0280)},
  howpublished = {NRDAX Registry},
  url = {https://nrdax.com/techniques/NRDAX-T0280},
}

json (csl)

{
  "id": "nrdax-NRDAX-T0280",
  "type": "dataset",
  "title": "Spoofed Endpoint-Proof Bypass Amplification (NRDAX-T0280)",
  "URL": "https://nrdax.com/techniques/NRDAX-T0280",
  "publisher": "NRDAX Registry"
}