CertiK: Detected arbitrary call vulnerability on Arbitrum, hackers have stolen about $140,000

Blockchain security firm CertiK has issued a warning that its security team has detected multiple suspicious transactions on the Arbitrum network. An attacker with an address of 0x97d8170e04771826a31c4c9b81e9f9191a1c8613 may have used an arbitrary call vulnerability to bypass signature verification and steal about $140,000 from multiple unverified exchange adapter contracts.