IBC Hijack

github.com/cheqd/cheqd-node is vulnerable to IBC hijack. The vulnerability is due to improper handling or validation within the IBC transfer mechanism, allows an attacker to compromise the security of chain-to-chain IBC transfers...

User's funds can get lost when transferring to other chain

Lines of code Vulnerability details Impact When transferring tokens to other chain, the tokens in the source chain are burned - if they are external they will be transferred to the AxelarGateway, otherwise they will be burned. In the target chain the same amount of tokens will be minted for the...

Fee-on-transfer/rebalancing tokens are not supported

Lines of code Vulnerability details Impact Some ERC20 tokens make modifications to their ERC20's transfer or balanceOf functions. One type of these tokens is deflationary tokens that charge a certain fee for every transfer or transferFrom. Others are rebasing tokens that increase in value over ti...

Funds can be stolen because of approval + send

Handle cmichel Vulnerability details Vulnerability Details The fulfill transaction on the receiving chain first approves the txData.callTo contract with the toSend amount. It then tries to call the addFunds and execute actions on txData.callTo. When any of the calls reverts, the funds are sent to...

Funds are sent twice on callTo errors

Handle cmichel Vulnerability details Vulnerability Details The fulfill transaction on the receiving chain tries to call the addFunds and execute actions on txData.callTo. When any of the calls reverts, the funds are sent to the txData.receivingAddress. The txData.callTo is user-controlled and an...

User prepare can be denied

Handle cmichel Vulnerability details Vulnerability Details Upon observing a prepare transaction, an attacker can frontrun it with the same invariantData but an amount of a single wei. This inserts a value into variantTransactionDatadigest and the original transcation will fail because of the...

TransactionIDs may not be reused by user

Handle cmichel Vulnerability details Vulnerability Details The fulfill signature is only on txData.transactionId, relayerFee which allows the router to steal user funds for cross-chain transfers that go to the same router and use the same transaction ID as an earlier transfer. Example: a successf...