Tadle

Summary

As the title suggests, withdraw function in TokenManager will not work due to a lack of fallback/receive functions. This will prevent users from withdrawing their balance.

Vulnerability Details

Look at this section of the withdrawfunction:

When IWrappedNativeToken(wrappedNativeToken).withdraw(claimAbleAmount); is called on a contract like WETH, it burns the claimAbleAmountof WETH tokens and sends the corresponding token amount to the caller (in this case, the TokenManager contract). But, TokenManager or any of the contracts it inherits from, lack the fallback or receive functions of solidity to receive ETH or other native tokens. So, when the WETH contract tries to send it ETH, it will revert as it lacks these necessary Solidity functions to receive ETH or chain native tokens.

Impact

Withdraw function will not work.

Tools Used

Manual review

Recommendations

Add the fallback or receive functions to receive ETH.