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

Other Crypto Funds Experience Significant Withdrawals

Other cryptocurrency ETF categories, including Solana and XRP, recorded significant withdrawals, indicating a broader trend of selling pressure.

user avatarSatoshi Nakamura

MEGA Plans AI Marketplace Launch for December

MEGA is set to launch an AI inference marketplace in December, allowing customers to access services from various AI model providers.

user avatarNguyen Van Long

MEGA Reduces Workforce to Shift Focus to AI Products

MEGA has laid off 20 employees as part of a restructuring to expand into artificial intelligence, moving beyond its blockchain infrastructure.

user avatarKofi Adjeman

Institutional Withdrawals from Crypto ETFs Reach Over $1 Billion

Institutional demand for crypto ETFs has weakened significantly, with US spot Bitcoin ETFs experiencing over $1 billion in withdrawals for the second consecutive week.

user avatarJesper Sørensen

Ethereum Staking Hits Record Levels Despite Price Drop

Ethereum's staking rate has surged to an all-time high of 36.3% of total supply, even as the price of ETH has fallen to around $2,000.

user avatarRajesh Kumar

Jane Street Boosts Bitcoin ETF Holdings Amid Market Changes

Jane Street has significantly increased its stake in major Bitcoin ETFs, particularly in Fidelity's Wise Origin Bitcoin Fund, reflecting strong client demand and trading activity in the Bitcoin market.

user avatarLucas Weissmann

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.