CVE-2018-10299

Description

An integer overflow in the batchTransfer function of a smart contract implementation for Beauty Ecosystem Coin (BEC), the Ethereum ERC20 token used in the Beauty Chain economic system, allows attackers to accomplish an unauthorized increase of digital assets by providing two _receivers arguments in conjunction with a large _value argument, as exploited in the wild in April 2018, aka the "batchOverflow" issue.

References

https://www.reddit.com/r/ethereum/comments/8esyg9/okex_erc20_bug/

https://twitter.com/OKEx_/status/987967343983714304

https://support.okex.com/hc/en-us/articles/360002944212-BeautyChain-BEC-Withdrawal-and-Trading-Suspended

https://peckshield.com/2018/04/22/batchOverflow/

https://medium.com/secbit-media/a-disastrous-vulnerability-found-in-smart-contracts-of-beautychain-bec-dbf24ddbc30e

https://dasp.co/#item-3

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3