{ "success": true, "error": null, "results": { "detectors": [ { "elements": [ { "type": "function", "name": "withdrawBalance", "source_mapping": { "start": 299, "length": 314, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "lines": [ 14, 15, 16, 17, 18, 19, 20, 21 ], "starting_column": 5, "ending_column": 6 }, "type_specific_fields": { "parent": { "type": "contract", "name": "Reentrancy", "source_mapping": { "start": 26, "length": 2334, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "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, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72 ], "starting_column": 1, "ending_column": 2 } }, "signature": "withdrawBalance()" } }, { "type": "node", "name": "! (msg.sender.call.value(userBalance[msg.sender])())", "source_mapping": { "start": 482, "length": 53, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "lines": [ 17 ], "starting_column": 13, "ending_column": 66 }, "type_specific_fields": { "parent": { "type": "function", "name": "withdrawBalance", "source_mapping": { "start": 299, "length": 314, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "lines": [ 14, 15, 16, 17, 18, 19, 20, 21 ], "starting_column": 5, "ending_column": 6 }, "type_specific_fields": { "parent": { "type": "contract", "name": "Reentrancy", "source_mapping": { "start": 26, "length": 2334, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "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, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72 ], "starting_column": 1, "ending_column": 2 } }, "signature": "withdrawBalance()" } } }, "additional_fields": { "underlying_type": "external_calls" } }, { "type": "node", "name": "userBalance[msg.sender] = 0", "source_mapping": { "start": 579, "length": 27, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "lines": [ 20 ], "starting_column": 9, "ending_column": 36 }, "type_specific_fields": { "parent": { "type": "function", "name": "withdrawBalance", "source_mapping": { "start": 299, "length": 314, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "lines": [ 14, 15, 16, 17, 18, 19, 20, 21 ], "starting_column": 5, "ending_column": 6 }, "type_specific_fields": { "parent": { "type": "contract", "name": "Reentrancy", "source_mapping": { "start": 26, "length": 2334, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "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, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72 ], "starting_column": 1, "ending_column": 2 } }, "signature": "withdrawBalance()" } } }, "additional_fields": { "underlying_type": "variables_written", "variable_name": "userBalance" } } ], "description": "Reentrancy in Reentrancy.withdrawBalance() (tests/reentrancy.sol#14-21):\n\tExternal calls:\n\t- ! (msg.sender.call.value(userBalance[msg.sender])()) (tests/reentrancy.sol#17)\n\tState variables written after the call(s):\n\t- userBalance[msg.sender] = 0 (tests/reentrancy.sol#20)\n", "markdown": "Reentrancy in [Reentrancy.withdrawBalance()](tests/reentrancy.sol#L14-L21):\n\tExternal calls:\n\t- [! (msg.sender.call.value(userBalance[msg.sender])())](tests/reentrancy.sol#L17)\n\tState variables written after the call(s):\n\t- [userBalance[msg.sender] = 0](tests/reentrancy.sol#L20)\n", "id": "b3b9387cfe7869e6def2fa9396178163800fecf86ae59f7fd3132cc491050c65", "check": "reentrancy-eth", "impact": "High", "confidence": "Medium" }, { "elements": [ { "type": "function", "name": "withdrawBalance_nested", "source_mapping": { "start": 2108, "length": 246, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "lines": [ 64, 65, 66, 67, 68, 69, 70 ], "starting_column": 5, "ending_column": 6 }, "type_specific_fields": { "parent": { "type": "contract", "name": "Reentrancy", "source_mapping": { "start": 26, "length": 2334, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "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, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72 ], "starting_column": 1, "ending_column": 2 } }, "signature": "withdrawBalance_nested()" } }, { "type": "node", "name": "msg.sender.call.value(amount / 2)()", "source_mapping": { "start": 2263, "length": 33, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "lines": [ 67 ], "starting_column": 13, "ending_column": 46 }, "type_specific_fields": { "parent": { "type": "function", "name": "withdrawBalance_nested", "source_mapping": { "start": 2108, "length": 246, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "lines": [ 64, 65, 66, 67, 68, 69, 70 ], "starting_column": 5, "ending_column": 6 }, "type_specific_fields": { "parent": { "type": "contract", "name": "Reentrancy", "source_mapping": { "start": 26, "length": 2334, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "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, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72 ], "starting_column": 1, "ending_column": 2 } }, "signature": "withdrawBalance_nested()" } } }, "additional_fields": { "underlying_type": "external_calls" } }, { "type": "node", "name": "userBalance[msg.sender] = 0", "source_mapping": { "start": 2310, "length": 27, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "lines": [ 68 ], "starting_column": 13, "ending_column": 40 }, "type_specific_fields": { "parent": { "type": "function", "name": "withdrawBalance_nested", "source_mapping": { "start": 2108, "length": 246, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "lines": [ 64, 65, 66, 67, 68, 69, 70 ], "starting_column": 5, "ending_column": 6 }, "type_specific_fields": { "parent": { "type": "contract", "name": "Reentrancy", "source_mapping": { "start": 26, "length": 2334, "filename_used": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_relative": "tests/reentrancy.sol", "filename_absolute": "/home/travis/build/crytic/slither/tests/reentrancy.sol", "filename_short": "tests/reentrancy.sol", "is_dependency": false, "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, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72 ], "starting_column": 1, "ending_column": 2 } }, "signature": "withdrawBalance_nested()" } } }, "additional_fields": { "underlying_type": "variables_written", "variable_name": "userBalance" } } ], "description": "Reentrancy in Reentrancy.withdrawBalance_nested() (tests/reentrancy.sol#64-70):\n\tExternal calls:\n\t- msg.sender.call.value(amount / 2)() (tests/reentrancy.sol#67)\n\tState variables written after the call(s):\n\t- userBalance[msg.sender] = 0 (tests/reentrancy.sol#68)\n", "markdown": "Reentrancy in [Reentrancy.withdrawBalance_nested()](tests/reentrancy.sol#L64-L70):\n\tExternal calls:\n\t- [msg.sender.call.value(amount / 2)()](tests/reentrancy.sol#L67)\n\tState variables written after the call(s):\n\t- [userBalance[msg.sender] = 0](tests/reentrancy.sol#L68)\n", "id": "f3e8ebbca224362041700e67287009f59c297a79b79a32489ec71ad596e8ee7a", "check": "reentrancy-eth", "impact": "High", "confidence": "Medium" } ] } }