[{"check": "tx-origin", "impact": "Medium", "confidence": "Medium", "description": "TxOrigin.bug0 uses tx.origin for authorization:\n\t- require(bool)(tx.origin == owner) (tests/tx_origin.sol#10)\n", "elements": [{"type": "function", "name": "bug0", "source_mapping": {"start": 116, "length": 60, "filename": "tests/tx_origin.sol", "lines": [9, 10, 11]}, "contract": {"type": "contract", "name": "TxOrigin", "source_mapping": {"start": 28, "length": 393, "filename": "tests/tx_origin.sol", "lines": [3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26]}}}, {"type": "expression", "expression": "require(bool)(tx.origin == owner)", "source_mapping": {"start": 142, "length": 27, "filename": "tests/tx_origin.sol", "lines": [10]}}]}, {"check": "tx-origin", "impact": "Medium", "confidence": "Medium", "description": "TxOrigin.bug2 uses tx.origin for authorization:\n\t- tx.origin != owner (tests/tx_origin.sol#14-16)\n", "elements": [{"type": "function", "name": "bug2", "source_mapping": {"start": 182, "length": 89, "filename": "tests/tx_origin.sol", "lines": [13, 14, 15, 16, 17]}, "contract": {"type": "contract", "name": "TxOrigin", "source_mapping": {"start": 28, "length": 393, "filename": "tests/tx_origin.sol", "lines": [3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26]}}}, {"type": "expression", "expression": "tx.origin != owner", "source_mapping": {"start": 208, "length": 57, "filename": "tests/tx_origin.sol", "lines": [14, 15, 16]}}]}]