Dec 2022 - Rubic Exchange Proxy Router Exploit - $1.41m (Global)
"Rubic aggregates 70+ blockchains and testnets, while it enables swaps of 15,500+ assets with the best rates, highest liquidity, and transaction speeds - in one click, thanks to the integration of 220+ DEXs and bridges. We focus on adding new emerging chains, which are often not present on giant DEXs and on-chain aggregators, ensuring that our users have access to the latest and most in-demand networks like zkSync Era, Polygon zkEVM, Mantle, Linea, Base, etc."
"Why Rubic Is Your Best Crypto Exchange? ON-CHAIN & CROSS-CHAIN SWAPS IN 1 CLICK SWAP TO EARN PROGRAM
SMART ROUTING: BEST ROUTES AND RATES PRIVATE RPC FEATURE & MEV-BOT PROTECTION NO TRANSACTION LIMITS LIQUIDITY AGGREGATION 230,000+ users of the Rubic platform"
"Trusted by by more than 130 Crypto Brands"
"Rubic Is a Safe & Decentralized Crypto Exchange. Rubic doesn’t use any external servers: only Frontend and Blockchain. Our contract is thoroughly audited by MixBytes. We’re built on open-source software: Github. Swap Bitcoin and 15,500+ altcoins in a fast,simple & secure way!"
"Rubic Protocol said on December 25 that one of its routing contracts had been breached and that all contracts will be suspended while the issue is investigated. A cross-chain DEX aggregator is Rubic. Through the routerCallNative function of the RubicProxy contract, users can trade native tokens. It will first determine whether the target Router of the necessary call entered by the user is on the protocol’s white list before redeeming."
"One of our routing contracts might be compromised. All contracts will be stopped until we understand the situation fully. Please don't use http://rubic.exchange."
"Our token and DEX liquidity have not been touched. We will update you on the situation, please stay tuned."
Further Analysis
Rubic, a decentralized exchange (DEX) aggregator operating across multiple chains, suffered a hack resulting in a loss exceeding $1.4 million. The attacker exploited a vulnerability in the RubicProxy contract's routerCallNative function, allowing unauthorized access to the whitelist and compromising the Tornado Cash mixing protocol. The breach was facilitated by the erroneous addition of USDC tokens to the whitelist, enabling the theft of these tokens from authorized users of the RubicProxy contract. Malicious users exploited the vulnerability by calling the USDC contract through the routerCallNative function, transferring the stolen tokens to the attacker's account. It is unclear if any of the stolen funds have been recovered.
How Could This Have Been Prevented?
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Sources/Further Reading
Stankoman comments on Rubic exchange was hacked, resulting in a $1.4 million loss. The attacker has currently sent 1100 ETH to Tornado Cash (Dec 31)
Stankoman comments on Do Defi audits mean nothing? 2 Defi protocols audited by Certik exploited for a combined $14M in the same day. (Dec 31)
Do Defi audits mean nothing? 2 Defi protocols audited by Certik exploited for a combined $14M in the same day. : CryptoCurrency (Dec 31)
Rubic Lost More Than $1.4 Million Due To The Hack - Coincu (Dec 31)
All-In-One Cross Chain Swap | DEX & Bridge Aggregator | Rubic Exchange (Dec 31)
MixBytes Audit - Rubic Documents (Dec 31)
Overview - Rubic Documents (Dec 31)
@peckshield Twitter (Dec 31)
Ethereum Transaction Hash (Txhash) Details | Etherscan
(Dec 31)
Cross-Chain Aggregator Rubic Exploited, Loses $1.4M (Dec 31)
Cross-chain aggregator Rubic faces exploit of $1.4 million - CoinCodeCap (Dec 31)
@CryptoRubic Twitter (Dec 31)
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