Vulnerability-Lookup

CVE-2018-12702 (GCVE-0-2018-12702)

Vulnerability from cvelistv5 – Published: 2018-06-25 10:00 – Updated: 2024-08-05 08:45

Summary

The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem (GVE), an 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."

Severity

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CWE

Assigner

mitre

References

2 references

URL	Tags
https://huobiglobal.zendesk.com/hc/en-us/articles…	x_refsource_MISC
https://peckshield.com/2018/06/23/evilReflex/	x_refsource_MISC

Date Public

2018-06-25 00:00

Show details on NVD website

JSON

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CNVD-2018-24273

Vulnerability from cnvd - Published: 2018-11-29

Title

Globalvillage ecosystem evilReflex存在未明漏洞

Description

Globalvillage ecosystem（GVE）是一款基于区块链技术的虚拟货币系统。 GVE的智能合约实现中的‘approveAndCallcode’函数存在安全漏洞，该漏洞源于程序未能验证callcode。攻击者可利用该漏洞窃取资产（将合约的余额转入到攻击者账户）。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： http://gve.io/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-12702

Impacted products

Name
Globalvillage ecosystem Globalvillage ecosystem 0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-12702"
    }
  },
  "description": "Globalvillage ecosystem\uff08GVE\uff09\u662f\u4e00\u6b3e\u57fa\u4e8e\u533a\u5757\u94fe\u6280\u672f\u7684\u865a\u62df\u8d27\u5e01\u7cfb\u7edf\u3002\n\nGVE\u7684\u667a\u80fd\u5408\u7ea6\u5b9e\u73b0\u4e2d\u7684\u2018approveAndCallcode\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9a8c\u8bc1callcode\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7a83\u53d6\u8d44\u4ea7\uff08\u5c06\u5408\u7ea6\u7684\u4f59\u989d\u8f6c\u5165\u5230\u653b\u51fb\u8005\u8d26\u6237\uff09\u3002",
  "discovererName": "unknown",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttp://gve.io/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-24273",
  "openTime": "2018-11-29",
  "products": {
    "product": "Globalvillage ecosystem Globalvillage ecosystem 0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-12702",
  "serverity": "\u4e2d",
  "submitTime": "2018-06-26",
  "title": "Globalvillage ecosystem evilReflex\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

FKIE_CVE-2018-12702

Vulnerability from fkie_nvd - Published: 2018-06-25 10:29 - Updated: 2026-06-17 01:38

Severity

7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Summary

References

URL	Tags
cve@mitre.org	https://huobiglobal.zendesk.com/hc/en-us/articles/360000110521-HADAX-Suspends-18T-and-GVE-Deposits-and-Withdrawals	Third Party Advisory
cve@mitre.org	https://peckshield.com/2018/06/23/evilReflex/	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://huobiglobal.zendesk.com/hc/en-us/articles/360000110521-HADAX-Suspends-18T-and-GVE-Deposits-and-Withdrawals	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://peckshield.com/2018/06/23/evilReflex/	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	gve	globalvillage_ecosystem	*

JSON

To clipboard

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    },
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    }
  ],
  "id": "CVE-2018-12702",
  "lastModified": "2026-06-17T01:38:12.033",
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      "source": "cve@mitre.org",
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    },
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  "vulnStatus": "Modified",
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  ]
}

GHSA-Q76V-J96W-GW2C

Vulnerability from github – Published: 2022-05-14 03:02 – Updated: 2022-05-14 03:02

Details

Severity

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2018-12702"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-06-25T10:29:00Z",
    "severity": "HIGH"
  },
  "details": "The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem (GVE), an Ethereum ERC20 token, allows attackers to steal assets (e.g., transfer the contract\u0027s 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.\"",
  "id": "GHSA-q76v-j96w-gw2c",
  "modified": "2022-05-14T03:02:59Z",
  "published": "2022-05-14T03:02:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12702"
    },
    {
      "type": "WEB",
      "url": "https://huobiglobal.zendesk.com/hc/en-us/articles/360000110521-HADAX-Suspends-18T-and-GVE-Deposits-and-Withdrawals"
    },
    {
      "type": "WEB",
      "url": "https://peckshield.com/2018/06/23/evilReflex"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2018-12702

Vulnerability from gsd - Updated: 2023-12-13 01:22

Details

Aliases

CVE-2018-12702

Aliases

CVE-2018-12702

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2018-12702",
    "description": "The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem (GVE), an Ethereum ERC20 token, allows attackers to steal assets (e.g., transfer the contract\u0027s 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.\"",
    "id": "GSD-2018-12702"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-12702"
      ],
      "details": "The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem (GVE), an Ethereum ERC20 token, allows attackers to steal assets (e.g., transfer the contract\u0027s 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.\"",
      "id": "GSD-2018-12702",
      "modified": "2023-12-13T01:22:29.708867Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2018-12702",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
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                ]
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            }
          ]
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          }
        ]
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            "url": "https://huobiglobal.zendesk.com/hc/en-us/articles/360000110521-HADAX-Suspends-18T-and-GVE-Deposits-and-Withdrawals"
          },
          {
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            "refsource": "MISC",
            "url": "https://peckshield.com/2018/06/23/evilReflex/"
          }
        ]
      }
    },
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                "cpe23Uri": "cpe:2.3:a:gve:globalvillage_ecosystem:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
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          "ID": "CVE-2018-12702"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem (GVE), an Ethereum ERC20 token, allows attackers to steal assets (e.g., transfer the contract\u0027s 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": {
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        },
        "references": {
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            {
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              ],
              "url": "https://peckshield.com/2018/06/23/evilReflex/"
            },
            {
              "name": "https://huobiglobal.zendesk.com/hc/en-us/articles/360000110521-HADAX-Suspends-18T-and-GVE-Deposits-and-Withdrawals",
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              "tags": [
                "Third Party Advisory"
              ],
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            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2018-08-30T13:17Z",
      "publishedDate": "2018-06-25T10:29Z"
    }
  }
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2018-12702 (GCVE-0-2018-12702)

CNVD-2018-24273

FKIE_CVE-2018-12702

GHSA-Q76V-J96W-GW2C

GSD-2018-12702

Tags

Sightings

Nomenclature