Franklyn Ezeugonna

Franklyn Ezeugonna Email and Phone Number

Blockchain and Smart contract Security / Frontend @ Cyfrin Codehawks
Franklyn Ezeugonna's Location
Nigeria, Nigeria
About Franklyn Ezeugonna

I am passionate about blockchain and smart contract security. My GitHubhttps://github.com/FrankezeCodeMy Blogshttps://medium.com/@franklynezeugonna

Franklyn Ezeugonna's Current Company Details
Cyfrin Codehawks

Cyfrin Codehawks

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Blockchain and Smart contract Security / Frontend
Franklyn Ezeugonna Work Experience Details
  • Cyfrin Codehawks
    Blockchain Security Researcher
    Cyfrin Codehawks Jan 2024 - Present
    ๐—ง๐—ต๐˜‚๐—ป๐—ฑ๐—ฒ๐—ฟ๐—Ÿ๐—ผ๐—ฎ๐—ป ๐—ฆ๐—บ๐—ฎ๐—ฟ๐˜ ๐—–๐—ผ๐—ป๐˜๐—ฟ๐—ฎ๐—ฐ๐˜ ๐—”๐˜‚๐—ฑ๐—ถ๐˜:I Conducted an in-depth audit of ThunderLoan, a decentralized Lending protocol, focusing on its flash loan functionality, oracle mechanisms and upgradeability patterns. Key findings included:I. Storage Collision : Found that mixing up variable locations in ThunderLoan and its upgrade caused a conflict between the two different storage variable, leading to incorrect fee calculation.II. Price Manipulation Risk: Found that relying on a decentralized exchange protocol as a price oracle, exposes the system to manipulation attacks where malicious users can easily bypass protocol fees, thereby significantly reducing the fees earned by the liquidity providers.III. Erroneous Exchange Rate Calculation: Identified a high-severity issue where the ThunderLoan::UpdateExchangeRate function, triggered during deposits, erroneously inflated the protocol's perceived fee accrual. As a result, users were prevented from redeeming their collateral,In total, I identified 2 high, 2 medium and 1 low-severity vulnerabilities, providing detailed recommendations that enhanced the security and reliability of the protocol๐—•๐—ผ๐˜€๐˜€ ๐—•๐—ฟ๐—ถ๐—ฑ๐—ด๐—ฒ ๐—ฆ๐—บ๐—ฎ๐—ฟ๐˜ ๐—–๐—ผ๐—ป๐˜๐—ฟ๐—ฎ๐—ฐ๐˜ ๐—”๐˜‚๐—ฑ๐—ถ๐˜I Conducted an in-depth audit of the Boss Bridge protocol, a bridging mechanism designed to transfer the Boss Bridge Token(BBT) from layer 1 (L1) to Layer 2 (L2) . Key findings included:I. Token Approval Vulnerability: Identified a critical vulnerability in the depositTokensToL2 function, which allows any caller to specify a from address for token transfers. This oversight enables attackers to withdraw tokens from any user who was granted the bridge token allowance.II. Lack of Replay Protection in withdrawals: Identified a critical vulnerability in the withdrawTokenToL1 function, which allows attackers to exploit the absence of replay protection in withdrawal signatures.In total, I identified 4 high, 1 medium and 1 low-severity .
  • Coderverse Technology
    Personal Projects
    Coderverse Technology Aug 2021 - Present
    With the hope of learning and participating in hackathons, I built several decentralized protocols, gaining hands-on experience in smart contract development using solidity. Some of these projects include:โ€ข ๐——๐—ฒ๐—™๐—ถ ๐—ฆ๐˜๐—ฎ๐—ฏ๐—น๐—ฒ ๐—ฐ๐—ผ๐—ถ๐—ป:I developed a decentralized stable coin protocol, backed by WETH and WBTC collateral, allowing users to mint stable coins by locking either WETH or WBTC or both as collateral. Designed with Liquidation mechanism and over-collateralization to maintain the peg of the stable coin.Tools Used are: Solidity , Chainlink Price Oracle , Foundry , VScode, git and Ethereum. โ€ข ๐—Ÿ๐—ผ๐˜๐˜๐—ฒ๐—ฟ๐˜† ๐—ฃ๐—ฟ๐—ผ๐˜๐—ผ๐—ฐ๐—ผ๐—น ๐˜‚๐˜€๐—ถ๐—ป๐—ด ๐—ฐ๐—ต๐—ฎ๐—ถ๐—ป๐—น๐—ถ๐—ป๐—ธ ๐—ฉ๐—ฅ๐—™I built a decencentralized lottery contract where users participate by entering the lottery pool, and a random winner is chosen at intervals, Chainlink VRF was integrated to ensure cryptographically secure off-chain randomness , making the selection process fair and tamper-proof.Tools Used are: Solidity, Chainlink VRF, Foundry , Vscode , git .and Ethereum. .NOTE: These are just a few selections of the projects Iโ€™ve built . For a full overview of my projects , please visit my repo [ link]
  • Forte Oil Nigeria
    Engineering Intern
    Forte Oil Nigeria Aug 2016 - Feb 2017
    Lagos, Nigeria
    ABOUT:Ardova Plc (Previously Forte oil PLc) is a leading indigenous player in the downstream Oil, Gas, and integrated Energy sector. With a network of over 450 stations spread across the six geographical zones of Nigeria, the company specializes in the procurement and distribution of Premium Motor Spirit (PMS), Dual Purpose Kerosene (DPK), Diesel (AGO) and Liquefied Natural Gas (LPG).ACCOMPLISHMENTSโ€ข Supervised Engineering and infrastructural project for LPG & Oil Terminal.โ€ข Designed training and peer-mentoring programs for D&I events targeted at C-level executives; led training and awareness initiatives that were attended by more than 100 employees.

Franklyn Ezeugonna Education Details

Frequently Asked Questions about Franklyn Ezeugonna

What company does Franklyn Ezeugonna work for?

Franklyn Ezeugonna works for Cyfrin Codehawks

What is Franklyn Ezeugonna's role at the current company?

Franklyn Ezeugonna's current role is Blockchain and Smart contract Security / Frontend.

What schools did Franklyn Ezeugonna attend?

Franklyn Ezeugonna attended Federal University Of Technology Owerri Nigeria.

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