{"componentChunkName":"component---node-modules-rocketseat-gatsby-theme-docs-core-src-templates-docs-query-js","path":"/manual-review/BridgeV2-BV2","result":{"data":{"mdx":{"id":"6b427b40-e811-5c5c-80bb-b53cce4fa84a","excerpt":"BV2-01M: Inexistent Sanitization of Commissions Type Severity Location Input Sanitization BridgeV2.sol:L97-L103 ,  L172-L178 Description: The linked functions…","fields":{"slug":"/manual-review/BridgeV2-BV2/"},"frontmatter":{"title":"BridgeV2 Manual Review Findings","description":"Contains all the findings that relate to manual review on the contract codebase","image":null,"disableTableOfContents":null},"body":"var _excluded = [\"components\"];\n\nfunction _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nfunction _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }\n\nfunction _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }\n\n/* @jsxRuntime classic */\n\n/* @jsx mdx */\nvar _frontmatter = {\n  \"title\": \"BridgeV2 Manual Review Findings\",\n  \"description\": \"Contains all the findings that relate to manual review on the contract codebase\"\n};\nvar layoutProps = {\n  _frontmatter: _frontmatter\n};\nvar MDXLayout = \"wrapper\";\nreturn function MDXContent(_ref) {\n  var components = _ref.components,\n      props = _objectWithoutProperties(_ref, _excluded);\n\n  return mdx(MDXLayout, _extends({}, layoutProps, props, {\n    components: components,\n    mdxType: \"MDXLayout\"\n  }), mdx(\"h2\", {\n    \"id\": \"span-idbv2-01mbv2-01m-inexistent-sanitization-of-commissionsspan\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h2\",\n    \"href\": \"#span-idbv2-01mbv2-01m-inexistent-sanitization-of-commissionsspan\",\n    \"aria-label\": \"span idbv2 01mbv2 01m inexistent sanitization of commissionsspan permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), mdx(\"span\", {\n    id: \"BV2-01M\"\n  }, \"BV2-01M: Inexistent Sanitization of Commissions\")), mdx(\"table\", null, mdx(\"thead\", {\n    parentName: \"table\"\n  }, mdx(\"tr\", {\n    parentName: \"thead\"\n  }, mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Type\"), mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Severity\"), mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Location\"))), mdx(\"tbody\", {\n    parentName: \"table\"\n  }, mdx(\"tr\", {\n    parentName: \"tbody\"\n  }, mdx(\"td\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"/symbiosis-finance-router-bridge/appendix/finding-types#input-sanitization\"\n  }, \"Input Sanitization\")), mdx(\"td\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, mdx(\"img\", {\n    parentName: \"td\",\n    \"className\": \"o-severity o-medium\",\n    \"src\": \"https://omniscia.io/report-assets/medium.png\"\n  })), mdx(\"td\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/symbiosis-finance/contracts-audit-with-tests/blob/707f038827af3c900419d36a58c1ad5def057e4c/contracts/synth-contracts/bridge-v2/BridgeV2.sol#L97-L103\"\n  }, \"BridgeV2.sol:L97-L103\"), \", \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/symbiosis-finance/contracts-audit-with-tests/blob/707f038827af3c900419d36a58c1ad5def057e4c/contracts/synth-contracts/bridge-v2/BridgeV2.sol#L172-L178\"\n  }, \"L172-L178\"))))), mdx(\"h3\", {\n    \"id\": \"description\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#description\",\n    \"aria-label\": \"description permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Description:\"), mdx(\"p\", null, \"The linked functions allow either the MPC or the owner to request and receive their commissions, however, all input arguments are blindly trusted and no sanitization occurs on those values.\"), mdx(\"h3\", {\n    \"id\": \"example\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#example\",\n    \"aria-label\": \"example permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Example:\"), mdx(\"pre\", null, mdx(\"code\", {\n    parentName: \"pre\",\n    \"className\": \"language-sol\",\n    \"metastring\": \"title=contracts/synth-contracts/bridge-v2/BridgeV2.sol highlight={4,5} lineNumbers=true lineOffset=96\",\n    \"title\": \"contracts/synth-contracts/bridge-v2/BridgeV2.sol\",\n    \"highlight\": \"{4,5}\",\n    \"lineNumbers\": \"true\",\n    \"lineOffset\": \"96\"\n  }, \"/**\\n* @notice Get commission by MPC\\n */\\nfunction getCommissionByMPC(address token, address to, uint256 amount) external onlyMPC returns (bool) {\\n    TransferHelper.safeTransfer(token, to, amount);\\n    return true;\\n}\\n\")), mdx(\"h3\", {\n    \"id\": \"recommendation\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#recommendation\",\n    \"aria-label\": \"recommendation permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Recommendation:\"), mdx(\"p\", null, \"As the contract is meant to retain funds at rest, we strongly advise this trait of the system to be re-evaluated and commissions to be tracked properly locally instead.\"), mdx(\"h3\", {\n    \"id\": \"alleviation\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#alleviation\",\n    \"aria-label\": \"alleviation permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Alleviation:\"), mdx(\"p\", null, \"The Symbiosis Finance team stated that this is intended behaviour as the contract is solely meant to retain commission funds at rest. As a result, we consider this exhibit null.\"), mdx(ViewDiffButton, {\n    repoUrl: \"https://github.com/symbiosis-finance/contracts-audit-with-tests\",\n    mainHash: \"707f038827af3c900419d36a58c1ad5def057e4c\",\n    fixHash: \"796b5eef153db2321446b60651de9f2d22d233c0\",\n    mdxType: \"ViewDiffButton\"\n  }));\n}\n;\nMDXContent.isMDXComponent = true;","headings":[{"depth":2,"value":"<span id=\"BV2-01M\">BV2-01M: Inexistent Sanitization of Commissions</span>"},{"depth":3,"value":"Description:"},{"depth":3,"value":"Example:"},{"depth":3,"value":"Recommendation:"},{"depth":3,"value":"Alleviation:"}]}},"pageContext":{"slug":"/manual-review/BridgeV2-BV2/","prev":{"label":"Synthesis.sol (SYN-S)","link":"/static-analysis/Synthesis-SYN"},"next":{"label":"MetaRouterV2.sol (MRV-M)","link":"/manual-review/MetaRouterV2-MRV"}}},"staticQueryHashes":["1954253342","2328931024","2501019404","973074209"]}