The Currency Analytics
By Sydney TheCMO
The launch of the attack
The aftermath
What would be a permanent solution?
Cybercrime is on rise in the crypto scene, often costing thousands and millions in damages. One of the recent victims of cybercrime in crypto space is Chainlink Oracle which led…
It all started with an apparently valid price feed plea from the attacker to which the node responded readily with a steady flow of gas fees (ETH transaction fees).
ETH gas prices are gwei denominated. The spammer cashed in on increased fees on network by hiking up gas costs and then by minting the Chi tokens on these escalated levels.
The 9 operators that were attacked include:
The attacker especially chose those operators that carry larger balances (say 50 ETH).
The attack lasted for around 2 hours during which the node operators could not cater to any more data requests as they were completely drained off of their ETH balances by that…
Alarmed, the operators reported to Chainlink immediately on which the Oracle portal patched the security team as fast as possible.
Although whitelisting worked in this case yet it can only serve as a temporary solution in such instances.
Thankfully, Chainlink has offered assistance and grants to node operators who have been the victims of the attack.