Description
The mintToken function of a smart contract implementation for MyYLC, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.
Affected Software
{"id": "CVE-2018-13781", "vendorId": null, "type": "cve", "bulletinFamily": "NVD", "title": "CVE-2018-13781", "description": "The mintToken function of a smart contract implementation for MyYLC, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.", "published": "2018-07-09T06:29:00", "modified": "2019-11-25T17:00:00", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:P/A:N"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE", "baseScore": 5.0}, "severity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}, "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-13781", "reporter": "cve@mitre.org", "references": ["https://github.com/BlockChainsSecurity/EtherTokens/tree/master/MyYLCToken", "https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20integer%20overflow.md"], "cvelist": ["CVE-2018-13781"], "immutableFields": [], "lastseen": "2022-03-23T13:04:20", "viewCount": 11, "enchantments": {"dependencies": {}, "score": {"value": 3.9, "vector": "NONE"}, "backreferences": {}, "exploitation": null, "vulnersScore": 3.9}, "_state": {"dependencies": 1659854349, "score": 1659800006, "affected_software_major_version": 1671579166}, "_internal": {"score_hash": "9a598a0d4b636c1570ee80b3ba4ffe28"}, "cna_cvss": {"cna": null, "cvss": {}}, "cpe": ["cpe:/a:myylctoken_project:myylctoken:-"], "cpe23": ["cpe:2.3:a:myylctoken_project:myylctoken:-:*:*:*:*:*:*:*"], "cwe": ["CWE-190"], "affectedSoftware": [{"cpeName": "myylctoken_project:myylctoken", "version": "-", "operator": "eq", "name": "myylctoken project myylctoken"}], "affectedConfiguration": [], "cpeConfiguration": {"CVE_data_version": "4.0", "nodes": [{"operator": "OR", "children": [], "cpe_match": [{"vulnerable": true, "cpe23Uri": "cpe:2.3:a:myylctoken_project:myylctoken:-:*:*:*:*:*:*:*", "cpe_name": []}]}]}, "extraReferences": [{"url": "https://github.com/BlockChainsSecurity/EtherTokens/tree/master/MyYLCToken", "name": "https://github.com/BlockChainsSecurity/EtherTokens/tree/master/MyYLCToken", "refsource": "MISC", "tags": ["Third Party Advisory"]}, {"url": "https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20integer%20overflow.md", "name": "https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20integer%20overflow.md", "refsource": "MISC", "tags": ["Exploit", "Third Party Advisory"]}]}
{}