ID:
gcs-token-1606
100 pts
Platform:
Type:
Category:
Method:
Data Sources:
Binance Smart Chain
Assets
Token
Contract Vulnerabilities
Extended Method:
Logic error
Days in Operation:
449
(1.23 Years)
100 pts each
GCS Token project was hacked for $3k. The hacker was able to direct the swap contract which still has the tokens approved to the sender, to transfer that to his contract. The root cause of the hack was the transferFrom/approve logic contains incorrect variable, in that the transferFrom(fromAddr, toAddr, amount) updates the allowance of the fromAddr to msg.sender, not to toAddress.
Initial funds were sourced from Tornado Cash.
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