LunaFI Hack

TOTAL LOST $36K
Low Other

Summarize with AI

ChatGPT Perplexity Claude Grok
Affected Chain 2023 Incident surface
Recovered - No recovery reported
All-Time Rank #1790 By amount stolen
Auditors 1 Prior security audit

Incident Overview

Quick Summary

LunaFI, a Polygon-based project, was exploited resulting in the loss of 1,500,000 $LFI tokens worth around 36,362 $USD.

Details of the Exploit

LunaFI is a betting platform running on Polygon. LunaFI's vLFI contract rewarding system was exploited. The attacker found an issue with the claimRewards() function that allowed them to repeatedly claim LFI tokens.

As a result of this exploit, approximately 1,500,000 $LFI tokens were stolen which is equivalent to around 36,362 $USD at current market value. After stealing these tokens from multiple users' wallets on the Polygon network using this method they swapped them for around 20 $ETH and transferred it to their initial address.

Block Data Reference

Attacker Address:

https://polygonscan.com/address/0x11576cb3…84a8de

Malicious Transaction:

https://polygonscan.com/tx/0xa0480d0f…266243

Malicious Contract Address:

https://polygonscan.com/address/0x43623b96…e58164

Incident Report

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

Protocol Information

Protocol Type Prediction Market
Affected Token LFI
Official Website www.housebets.io/
Protocol Twitter/X @LunaFi_Project
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 LunaFI'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
Audited by Audit Report 1 — still lost $36K. Prior audits don't guarantee safety, especially after post-audit code changes.

If you're auditing a protocol with similar architecture to LunaFI, these are the critical security checks that could have prevented this incident (May 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

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

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Security Audit History

Sources & References

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