Ethereum Hive Hack

TOTAL LOST $16K
Low Other

Summarize with AI

ChatGPT Perplexity Claude Grok
Affected Chain 2023 Incident surface
Recovered - No recovery reported
All-Time Rank #1908 By amount stolen
Protocol Type Exploit/Other Target category

Incident Overview

Quick Summary

EthereumHive project exploited, resulting in the loss of 744 million EHIVE tokens worth 15,569 USD (9.32 ETH).

Details of the Exploit

EthereumHive, a project running on the Ethereum chain, was exploited on August 21, 2023, through a reentrancy attack. The attacker used a rewarding issue in the EHIVE token's smart contract which allowed stakes with zero amount. They created multiple contracts and staked 0 EHIVE tokens from each of them.

By calling stake and unstake immediately in each contract, the attacker increased reward amounts, ultimately minting 744 million EHIVE tokens. These tokens were exchanged for over 9 ETH, equivalent to 15,569 USD. The stolen funds were deposited into TornadoCash.

Block Data Reference

Attacker Address:

https://etherscan.io/address/0x0195448a…234bb5

Malicious Transactions:

https://etherscan.io/tx/0xad818ec9…a511c1

https://etherscan.io/tx/0xd9156f50…642114

Malicious Contract Addresses:

https://etherscan.io/address/0x98C2e1E8…80B892

https://etherscan.io/address/0xE7d9a935…6Dcb84

TornadoCash Deposit Transaction:

https://etherscan.io/tx/0x61bfbd48…af185d

Incident Report

Protocol / Project Ethereum Hive
Date of Incident
Attack Technique Other
Classification Other
Primary Source View Post-Mortem

Protocol Information

Protocol Type Exploit/Other
Affected Token EHIVE
Protocol Twitter/X @EthereumHive
Team Anonymous
Source Code Verified On-Chain

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 other and Solidity and EVM internals
Capital Required Seed capital to cover gas and initial position setup
On-Chain Access Ability to interact with smart contracts and deploy a custom exploit contract
Protocol Analysis Identification of the exploitable vulnerability in Ethereum Hive's contract logic - root cause: other
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 — with a thorough Other audit checklist and test coverage

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

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

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