Ronin Bridge Exploit of $10 Million Caused by Faulty Upgrade Script — Verichains

user avatar

by Giorgi Kostiuk

2 years ago

Made with AI

  1. Cause of the Vulnerability
  2. How the Attack Happened
  3. Consequences and Resolution


    4. The $10 million Ronin bridge exploit on August 6 was caused by a faulty upgrade deployment script, according to blockchain security firm Verichains.

    Cause of the Vulnerability

    The upgrade reduced the voting threshold for validators to zero, allowing any user to withdraw from the bridge without a signature. Verichains states that the error occurred due to the incorrect initialization of the totalWeight variable.

    How the Attack Happened

    The attacker attempted to exploit this flaw but was front-run by an MEV bot, which actually carried out the attack, probably unintentionally. The bot’s owner later returned most of the funds to the Ronin team.

    Consequences and Resolution

    Verichains’ analysis reveals the risks of interacting with upgradeable smart contracts. The network could have lost the full amount had the attacker paid more in gas and thus avoided the front-run.

    Due to the faulty upgrade script, Ronin bridge users were able to withdraw funds without validator signatures. This incident highlights the potential risks when dealing with upgradeable smart contracts.

Tier I

Sector: #18291

Sealed Hiding Place Room

Resource Cache

Resource Cache

Tier I

Requires 25% Tier Progress to Claim
Meme Cache

Meme Cache

Tier I

Requires 50% Tier Progress to Claim
Equipment Cache

Equipment Cache

Tier I

Requires 75% Tier Progress to Claim

After collecting, hiding places will be stored in your inventory and can be opened with Keys.

Other news

Increased Rewards for Alpenglow Bugs Announced

Jump Crypto is raising payouts for eligible findings in the Firedancer program, especially for Alpenglow bugs. Effective until Nov 20, eligible findings will receive double the standard reward, with triple rewards for Alpenglow-specific bugs.

user avatarMohamed Farouk

Sean Bowe Calls for End to Automatic Funding for Zcash Community Grants

Zcash cofounder Sean Bowe proposes to halt the automatic allocation of 8 ZEC to the Zcash Community Grants program, citing sufficient treasury funds to cover years of spending.

user avatarBayarjavkhlan Ganbaatar

Solanas Firedancer Introduces Paywall for Bug Reports

The Firedancer team has implemented a requirement for researchers to burn 1 SOL per bug report to reduce AI-generated submissions.

user avatarElias Mukuru

Aviva Investors Expands Tokenized Fund Offerings with Sterling Liquidity Fund Launch

Aviva Investors has launched a tokenized share class of its Sterling GBP Liquidity Fund on the XRP Ledger, marking its second tokenized fund.

user avatarDiego Alvarez

Glamsterdam Upgrade Delayed Despite Security Improvements

Glamsterdam upgrade faces delays despite vulnerability fix due to additional testing requirements.

user avatarKenji Takahashi

Ethereum Developers Address Vulnerability in Glamsterdam Upgrade

Ethereum developers have resolved a serious vulnerability in the Glamsterdam upgrade that could have allowed block builders to withdraw ETH intended for staking validators.

user avatarMaria Fernandez

Important disclaimer: The information presented on the Dapp.Expert portal is intended solely for informational purposes and does not constitute an investment recommendation or a guide to action in the field of cryptocurrencies. The Dapp.Expert team is not responsible for any potential losses or missed profits associated with the use of materials published on the site. Before making investment decisions in cryptocurrencies, we recommend consulting a qualified financial advisor.