EVODeFi Hack

Reported loss $1.7M
BNB Chain
Flash Loan Attack

What happened

Quick Summary

EvoDefi was exploited by attackers using a flash loan. The attacker made away with 455 $GEN roughly worth $1.8 million.

Details of the Exploit

EvoDefi, a cross-chain platform offering a large suite of products on the BSC chain, Polygon and the multi-chain bridge was attacked, and the price of its token GEN fell from $3.81 to $1.28. A total of 455,576.855 GEN was lost, which is about $1M. Due to design faults in the update logic of the function in the MasterChef contract, the part of the reward that must be subtracted is not updated, allowing the attacker to arbitrage.

Block Data Reference

Attacker address: Address 0x8a0a…7c6c

Attacker contract: Address 0x1cb6…2459

Attack transaction: Tx 0x7c3b…3880

Protocol details

Classification Yield Aggregator / Protocol Logic
Protocol Type Exploit/Flash Loan Attack
Affected asset / contract GEN
Implementation language Solidity
Protocol links Website @evolution_bsc

Evidence

Understand the attack patterns

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