How much was lost in the Rodeo hack?

The Rodeo hack resulted in $90K in losses on July 04, 2023.

What attack technique was used in the Rodeo exploit?

The Rodeo exploit utilized Mint Reserves Logic Exploit. Understanding this attack vector is critical for smart contract auditors and developers building secure DeFi protocols.

How can developers prevent similar smart contract attacks?

Preventing smart contract hacks requires a combination of secure coding practices, thorough security audits, and understanding common attack vectors like reentrancy, oracle manipulation, and access control flaws. Smart Contract Hacking (SCH) provides hands-on training to help developers and auditors identify and prevent vulnerabilities before deployment.

Rodeo Hack

TOTAL LOST $90K

Low Jul 04, 2023 Mint Reserves Logic Exploit arbitrum

Affected Chain arbitrum Incident surface

Recovered - No recovery reported

All-Time Rank #1561 By amount stolen

Auditors 1 Prior security audit

Incident Overview

Rodeo is creating a leverage hyperstructure on Arbitrum that lets users increase their positions in top-tier vaults and strategies.

Incident Report

Protocol / Project Rodeo

Date of Incident July 04, 2023

Affected Chain(s) arbitrum

Attack Technique Mint Reserves Logic Exploit

Classification Protocol Logic

Primary Source View Post-Mortem

Protocol Information

Protocol Type Yield

Smart Contract Language Solidity

Official Website swap.crodex.app

Protocol Twitter/X @Rodeo_Finance

Market Context at Time of Hack

Token Categories

Decentralized Exchange (DEX) Token DeFi Cronos Ecosystem

Protocol Links

GitHub Discord

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 mint reserves logic exploit and Solidity and EVM internals

Capital Required Seed capital to cover gas and initial position setup

On-Chain Access Ability to interact with arbitrum smart contracts and deploy a custom exploit contract

Protocol Analysis Identification of the exploitable vulnerability in Rodeo'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 — with a thorough Mint Reserves Logic Exploit audit checklist and test coverage

Audited by Audit Report 1 — still lost $90K. Prior audits don't guarantee safety, especially after post-audit code changes.

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

Verify all logic paths related to Mint Reserves Logic Exploit 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

Audit Report 1 Report

Sources & References

01
Source 1 https://twitter.com/Phalcon_xyz/status/1676511696603729921?s=20

Threat Assessment

Severity Level

LOW

Attack Vector Mint Reserves Logic Exploit
Root Cause Protocol Logic
Year 2023

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