ID:
pancakeswap-1135
100 pts
Platform:
Type:
Category:
Method:
Data Sources:
Binance Smart Chain
Protocol
Dexes
Rewards - Bug Bounties
Extended Method:
Lack of validation on previously claimed ticket, allowing multiple claims on the same ticket
Days in Operation:
732
(2.01 Years)
100 pts each
Whitehat Juno submitted a critical vulnerability in PancakeSwap’s lottery contract to Immunefi. The vulnerability consisted of a logic error. Due to insufficient validation, a malicious user could have claimed the same winning ticket at least 255 times in a single transaction, meaning the reward size was 255 times too great. A total of $700,000 in funds could have been lost, had the vulnerability been exploited.
ApeSwap, PantherSwap, and Knights DeFi were vulnerable. All three decided to pay a bounty to the whitehat as well. PancakeSwap paid $70,000 in CAKE tokens. ApeSwap paid $2,700. PantherSwap paid 10,290 PANTHER tokens. Knights DeFi paid 7,000 KNIGHT tokens.
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