highBridge exploitOther
Chakra: Handler's `receive_cross_chain_callback()` will always set the `tx_status` to `SETTLED` on source chain & burn the tokens (MintBurn Mode) even when the msg fails on destination
- Payout
- $0
- Protocol
- Chakra
- Disclosed
- Feb 20, 2025
- Source
- code4rena
Chakra's Cairo settlement contract implements a cross-chain bridge callback that ignores the `cross_chain_msg_status` passed by validators. In `receive_cross_chain_callback()`, the transaction record is unconditionally written with `CrossChainTxStatus::SETTLED …
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References
- https://github.com/code-423n4/2024-08-chakra-findings/issues/84
- https://github.com/code-423n4/2024-08-chakra-findings
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