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Favorite DeFi Vulnerabilities

Talkat DeFi Security Summit 2022 · 2022-08-27..08-28· [security]
slides:none on file

Shows concrete bugs: a single shifted bracket breaks retests because Brownie/Foundry unit tests fail; uninitialized proxy implementations let attackers self-destruct logic (the Wormhole $10M class); internal accounting errors — shares vs amounts, rounding/dust and unsafe signed-to-unsigned casts — lock funds; non-atomic deployments (Rocket Pool) let mempool watchers hijack initialization; BLS rogue public key lets an attacker forge aggregated signatures; Merkle-path-as-bitmap enables replay of the same tx; network DoS via CVE-2021-3121 deserialization overflow found by fuzzing.

AI-written summary · about

  1. 0:00Start
  2. 6:23Uninitialised Impl Contracts (Proxies)
  3. 7:44Internal Accounting Chaos
  4. 9:06Unprotected Deployments
  5. 11:07#5: Smart Wallet Attacks
  6. 13:29Merkle Proofs Mishandling
  7. 15:30Relayer Panics
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