{"containers":{"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2018-06-25T00:00:00.000Z","descriptions":[{"lang":"en","value":"The approveAndCallcode function of a smart contract implementation for Block 18 (18T), an tradable Ethereum ERC20 token, allows attackers to steal assets (e.g., transfer the contract's balances into their account) because the callcode (i.e., _spender.call(_extraData)) is not verified, aka the \"evilReflex\" issue. NOTE: a PeckShield disclosure states \"some researchers have independently discussed the mechanism of such vulnerability.\""}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2018-06-25T10:57:01.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"tags":["x_refsource_MISC"],"url":"https://huobiglobal.zendesk.com/hc/en-us/articles/360000110521-HADAX-Suspends-18T-and-GVE-Deposits-and-Withdrawals"},{"tags":["x_refsource_MISC"],"url":"https://peckshield.com/2018/06/23/evilReflex/"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2018-12703","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The approveAndCallcode function of a smart contract implementation for Block 18 (18T), an tradable Ethereum ERC20 token, allows attackers to steal assets (e.g., transfer the contract's balances into their account) because the callcode (i.e., _spender.call(_extraData)) is not verified, aka the \"evilReflex\" issue. NOTE: a PeckShield disclosure states \"some researchers have independently discussed the mechanism of such vulnerability.\""}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://huobiglobal.zendesk.com/hc/en-us/articles/360000110521-HADAX-Suspends-18T-and-GVE-Deposits-and-Withdrawals","refsource":"MISC","url":"https://huobiglobal.zendesk.com/hc/en-us/articles/360000110521-HADAX-Suspends-18T-and-GVE-Deposits-and-Withdrawals"},{"name":"https://peckshield.com/2018/06/23/evilReflex/","refsource":"MISC","url":"https://peckshield.com/2018/06/23/evilReflex/"}]}}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-05T08:45:01.179Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_MISC","x_transferred"],"url":"https://huobiglobal.zendesk.com/hc/en-us/articles/360000110521-HADAX-Suspends-18T-and-GVE-Deposits-and-Withdrawals"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://peckshield.com/2018/06/23/evilReflex/"}]}]},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2018-12703","datePublished":"2018-06-25T10:00:00.000Z","dateReserved":"2018-06-23T00:00:00.000Z","dateUpdated":"2024-08-05T08:45:01.179Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}