Binance Smart Chain
Days in Operation:
100 pts each
The same attacker exploited several projects: Crypto1319 ($1072), Bubblegum ($99),Binance Dog ($7233), The Philosophers Stones, Meta Speed Game ($725), and a few others for a combined loss of $10k+.
The pool balance can be manipulated due to pair addresses is not _isExcluded addresses.
The attacker flashloaned some $BUSD or $WBNB, bought corresponding tokens, and burned the tokens in the attack contract by repeatedly calling the burn function.
This results in a decrease in _tTotal and a larger return value for _getrate, which led to a gradual decrease in the pool balance to 1. The remaining tokens were then swapped for a large amount of $BUSD or WBNB at a high price.
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