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On September 10th, SlowMist MistTrack posted on social media, indicating that attackers exploited issues in the LDO token contract to conduct a "false recharge" attack on exchanges. When the LDO Token contract processes transfer operations, if the transfer amount exceeds the actual holdings of the user, this operation will not trigger the usual transaction rollback. Instead, it simply returns "false" as a result, without indicating failure. There is a potential "false recharge" risk in the LDO token contract.
Due to the above characteristics, there is a potential risk of "false recharge." Malicious attackers may attempt to use this feature for fraudulent activities.
SlowMist recommends the following:
1. When handling the logic of token receipts, do not solely rely on the success or failure of the transaction but also base it on the actual return values of the token contract.
2. Be aware that there are many tokens in the market that do not conform to the ERC20 standard. Before integrating a new token, thoroughly understand and analyze its contract code to ensure the correct accounting logic is implemented.
3. It is advisable to conduct regular code audits and security checks to ensure the robustness and security of the system.
The implementation and behavior of token contracts may vary from project to project. To ensure the security of funds and the accuracy of transactions, it is strongly recommended to have a deep understanding of the contract logic and perform thorough testing before integrating any new token. |
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Post time 14-9-2023 11:19:37