DeltaPrime, Ramses, and Morpho Breached via Unchecked Input, Reward Logic Bugs, and Oracle Mispricing
DeltaPrime lost $4.8M after failing to validate debt repayment in swapDebtParaSwap(), letting attackers drain collateral without settling loans. Ramses Exchange was hit for $93K after its FeeDistributor contract failed to limit reward claims per token ID. Morpho Protocol’s $230K loss came from a 12-decimal misconfig in its PAXG/USDC oracle, grossly inflating collateral value.
In Brief
DeltaPrime was exploited for $4.8M due to unchecked user input.
Ramses Exchange lost $93K due to a vulnerability in its reward tracking system.
Morpho Protocol lost $230K due to a misconfigured Oracle Price setup.
Hacks Analysis
DeltaPrime | Amount Lost: $4.8M
On November 11th, the DeltaPrime exploit on Arbitrum and Avalanche chains resulted in a $4.8M loss. The root cause of the exploit was a flaw in the swapDebtParaSwap() function. The function failed to ensure that borrowed tokens were properly repaid, allowing _repayAmount to remain 0. The attacker initiated the exploit with a 59.9 ETH flash loan, used it as collateral to borrow 1.18 WBTC, and transferred the borrowed WBTC to a malicious contract via a swap. Since no repayment occurred, the attacker retained their original collateral while profiting from the borrowed tokens.
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Exploited Contract (on Arbitrum): 0xca60c5d2ee1f9c79c92a9d5831dc22ccc291b5f5
On October 24th, the Ramses Exchange exploit on Arbitrum resulted in a $93K loss. The root cause of the exploit was a flaw in the FeeDistributer contract’s reward distribution logic. The attacker claimed rewards multiple times using different token IDs, bypassing reward limits. This was possible because the private _getReward() function failed to properly track rewards for each token ID, specifically in the tokenTotalSupplyByPeriod and veWithdrawnTokenAmountByPeriod values.
Exploited Contract (on Arbitrum): 0x3606230b62e64ace5829f00c9c3b6c5bd96ccaec
On October 13th, the Morpho Protocol exploit on the Ethereum mainnet resulted in a $230K loss. The attack exploited the PAXG/USDC market due to a misconfiguration in the Oracle Price setup. The deployer mistakenly set both tokens to 8 decimals instead of accounting for USDC’s 6 decimals and PAXG’s 18 decimals. This caused a 12-decimal inflation, overvaluing PAXG by a factor of 10¹². The attacker exploited this by supplying $350 worth of PAXG to borrow 230,000 USDC.
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Follow-up: Conduct a follow-up review to ensure that the remediation steps were effective and that the smart contract is now secure.
Follow-up: Conduct a follow-up review to ensure that the remediation steps were effective and that the smart contract is now secure.
In Brief
Remitano suffered a $2.7M loss due to a private key compromise.
GAMBL’s recommendation system was exploited.
DAppSocial lost $530K due to a logic vulnerability.
Rocketswap’s private keys were inadvertently deployed on the server.
Hacks
Hacks Analysis
Huobi | Amount Lost: $8M
On September 24th, the Huobi Global exploit on the Ethereum Mainnet resulted in a $8 million loss due to the compromise of private keys. The attacker executed the attack in a single transaction by sending 4,999 ETH to a malicious contract. The attacker then created a second malicious contract and transferred 1,001 ETH to this new contract. Huobi has since confirmed that they have identified the attacker and has extended an offer of a 5% white hat bounty reward if the funds are returned to the exchange.
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