Zabu Finance Hack

Reported loss $3.2M
Avalanche
Flashloan Exploit

What happened

The attacker:

Address 0x9ed2…bf86

The transaction behind the attack:

Tx 0x8b30…75ac

The hack was due to the lack of deflationary token support in the MasterChef contract. By repeated deposits and withdrawals with the MasterChef, the attacker frequently triggers the tax collection, which led to the exploit.

The attacker deployed the contract with the malicious logic at:

Tx 0x771c…c319

Further, he interacted with that contract to successfully pulled out 4.5 billion ZABU tokens in Zabu Farm Contract.

The list of stolen assets:

  • WETH: 402.9
  • WAVAX: 23,157
  • PNG: 21,501
  • AVE: 106,848
  • USDT: 361,267
  • JOE: 23,958.93

Protocol details

Classification Protocol Logic / Yield Aggregator
Protocol Type Yield Aggregator
Affected asset / contract ZABU
Implementation language Solidity
Protocol links Website @zabufinance

Understand the attack patterns

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