Detail Analysis
Date:
Status:
Count:
Contributor:
June 25, 2021
Verified
1
zerofriction.io
Loss Amount:
270,000
Recovered Amount:
-
Currency:
Dollars, xWin
KYC By:
Audit By:
None
None
Website:
No data
Twitter:
No data
Discord:
No data
Telegram:
No data
Medium:
No data
Github:
No data
Key Indicators
Platform:
Type:
Category:
Method:
Binance Smart Chain
Protocol
Contract Vulnerabilities
Extended Method:
Oracle manipulation
Data Sources:
The DeFi protocol xWin Finance based on Binance Smart Chain was attacked by lightning loans. xWin Finance was exploited and the attacker gained about $270k. This incident was due to an invalid slippage control in the protocol, which is exploited in a flashloan to obtain extra xWin rewards. This incident was due to a bug in the internal _swapBNBToTokens() function of xWinFund contract which implements a price slippage control. However, the logic of slippage control is invalid. The hacker made use of this bug and gained rewards (in terms of 303,998.86 xWin tokens) from the contract to swap for BNB.
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