highLogic errorEVM-Solidity
Biconomy: Arbitrary transactions possible due to insufficient signature validation
- Payout
- $0
- Protocol
- Biconomy
- Disclosed
- Mar 3, 2023
- Source
- code4rena
Biconomy's SmartAccount contract implemented EIP-1271 contract signature validation within `checkSignatures` without verifying whether the target contract signature validator (`_signer`) was an authorized wallet owner. An attacker could deploy a malicious cont …
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References
- https://github.com/code-423n4/2023-01-biconomy-findings/issues/175
- https://github.com/code-423n4/2023-01-biconomy-findings
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