mediumBridge exploitEVM-Solidity
Chakra: Does not check if `to_chain` and `to_handler` is whitelisted in `cross_chain_erc20_settlement`
- Payout
- $0
- Protocol
- Chakra
- Disclosed
- Feb 20, 2025
- Source
- code4rena
Chakra's cross-chain ERC20 bridge lets a user call `Handler.cross_chain_erc20_settlement` with arbitrary `to_chain` and `to_handler` values, because only non-zero checks are enforced rather than a whitelist validation. When a message is directed at a destinati …
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References
- https://github.com/code-423n4/2024-08-chakra-findings/issues/44
- https://github.com/code-423n4/2024-08-chakra-findings
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