Improper Verification Of Cryptographic Signature

openzeppelin_cairo_contracts is vulnerable to Improper Verification of Cryptographic Signature. A malicious user is able to bypass signature validation to impersonate an instance of an account and gain access to confidential user data, because is_valid_eth_signature is missing a call to finalize_keccak after calling verify_eth_signature, which makes it vulnerable to a malicious sequencer.