code-reuse-attack

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bug-bounty

A critical vulnerability was discovered in Oasis Earn service that allows attackers to selfdestruct the OperationExecutor contract through a delegatecall code-reuse attack, exploiting the assumption that executeOp() runs only in user's DSProxy context. The researcher earned a $20K bounty by chaining arbitrary calldata execution with hardcoded service registry mappings to achieve contract destruction.

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trust-security.xyz · Trust · 5 hours ago · details