AzukiDAO Hack

TOTAL LOST $68K
Low Replay Attack ethereum

Summarize with AI

Affected Chain ethereum Incident surface
Recovered - No recovery reported
All-Time Rank #1643 By amount stolen
Year 2023 Incident year

Incident Overview

Azuki (AZUKI) is a cryptocurrency and operates on the Ethereum platform. Azuki has a current supply of 11,310,690 with 11,284,984 in circulation. The last known price of Azuki is 0.00049564 USD and is up 13.63 over the last 24 hours.

It is currently trading on 11 active market(s) with $0.00 traded over the last 24 hours. More information can be found at https://dokidoki.finance/.

Incident Report

Protocol / Project AzukiDAO
Date of Incident
Affected Chain(s) ethereum
Attack Technique Replay Attack
Classification Protocol Logic
Primary Source View Post-Mortem

Protocol Information

Smart Contract Language Solidity
Official Website dokidoki.finance/
Protocol Twitter/X @dokidokifinance

Market Context at Time of Hack

Token Categories
Collectibles & NFTs DeFi Ethereum Ecosystem Yield Farming Polygon Ecosystem

What the Attacker Needed to Succeed

Understanding the prerequisites for this type of attack helps auditors identify protocols that are most at risk and helps developers build better defenses.

Technical Knowledge Deep understanding of replay attack and Solidity and EVM internals
Capital Required Seed capital to cover gas and initial position setup
On-Chain Access Ability to interact with ethereum smart contracts and deploy a custom exploit contract
Protocol Analysis Identification of the exploitable vulnerability in AzukiDAO's contract logic - root cause: protocol logic
Execution Speed Precise transaction ordering and timing to exploit the vulnerability within a single atomic block
Obfuscation Plan A strategy to launder and move stolen funds - typically through mixers, cross-chain bridges, or decentralized DEX swaps to resist tracing

What Auditors Should Check

Could this have been caught in audit? Likely β€” with a thorough Replay Attack audit checklist and test coverage

If you're auditing a protocol with similar architecture to AzukiDAO, these are the critical security checks that could have prevented this incident (July 2023).

  • Verify all logic paths related to Replay Attack are guarded by proper access controls and input validation - see the Replay Attacks attack class for patterns
  • Review privileged functions (owner, admin, governance) for potential abuse vectors - centralization risks should be documented and bounded with timelocks or multi-sigs

Master these auditing techniques with hands-on labs and real exploit scenarios in the Smart Contract Hacking course.

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Related Attack Classes

The technique used in this hack maps to these vulnerability classes in our security curriculum:

See all Replay Attacks examples β†’

Proof-of-Concept Exploits

1 PoC available

On-Chain Evidence & References

Sources & References

Learn to Prevent the Next AzukiDAO

The AzukiDAO hack is one of many attacks that skilled auditors are trained to detect before deployment. Master real exploit patterns and defense techniques with hands-on Web3 security training.

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