Vulnerability-Lookup

CNVD-2021-64471

Vulnerability from cnvd - Published: 2021-08-24

Title

BTC2X存在未明漏洞

Description

BTC2X（B2X）是一个应用软件。智能合约实现的自有功能，一种可交易的以太坊 ERC20 代币，拥有不受保护的所有权，这允许任何人成为该合约的所有者，包括接受者。 BTC2X中存在安全漏洞，攻击者可利用该漏洞允许攻击者劫持受害者账户，任意增加资产的数字供应。

Severity

中

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://ethereum.org/en/developers/docs/standards/tokens/erc-20/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-34273

Impacted products

Name
BTC2X BTC2X

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-34273"
    }
  },
  "description": "BTC2X\uff08B2X\uff09\u662f\u4e00\u4e2a\u5e94\u7528\u8f6f\u4ef6\u3002\u667a\u80fd\u5408\u7ea6\u5b9e\u73b0\u7684\u81ea\u6709\u529f\u80fd\uff0c\u4e00\u79cd\u53ef\u4ea4\u6613\u7684\u4ee5\u592a\u574a ERC20 \u4ee3\u5e01\uff0c\u62e5\u6709\u4e0d\u53d7\u4fdd\u62a4\u7684\u6240\u6709\u6743\uff0c\u8fd9\u5141\u8bb8\u4efb\u4f55\u4eba\u6210\u4e3a\u8be5\u5408\u7ea6\u7684\u6240\u6709\u8005\uff0c\u5305\u62ec\u63a5\u53d7\u8005\u3002\n\nBTC2X\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5141\u8bb8\u653b\u51fb\u8005\u52ab\u6301\u53d7\u5bb3\u8005\u8d26\u6237\uff0c\u4efb\u610f\u589e\u52a0\u8d44\u4ea7\u7684\u6570\u5b57\u4f9b\u5e94\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttps://ethereum.org/en/developers/docs/standards/tokens/erc-20/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-64471",
  "openTime": "2021-08-24",
  "products": {
    "product": "BTC2X BTC2X"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-34273",
  "serverity": "\u4e2d",
  "submitTime": "2021-08-05",
  "title": "BTC2X\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2021-34273 (GCVE-0-2021-34273)

Vulnerability from cvelistv5 – Published: 2021-08-03 21:24 – Updated: 2024-08-04 00:05

Summary

A security flaw in the 'owned' function of a smart contract implementation for BTC2X (B2X), a tradeable Ethereum ERC20 token, allows attackers to hijack victim accounts and arbitrarily increase the digital supply of assets.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

1 reference

URL	Tags
https://github.com/MRdoulestar/SC-RCVD/blob/main/…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T00:05:52.420Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/MRdoulestar/SC-RCVD/blob/main/Vulnerabilities/BTC2X.md"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A security flaw in the \u0027owned\u0027 function of a smart contract implementation for BTC2X (B2X), a tradeable Ethereum ERC20 token, allows attackers to hijack victim accounts and arbitrarily increase the digital supply of assets."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-08-03T21:24:59.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MRdoulestar/SC-RCVD/blob/main/Vulnerabilities/BTC2X.md"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-34273",
          "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": "A security flaw in the \u0027owned\u0027 function of a smart contract implementation for BTC2X (B2X), a tradeable Ethereum ERC20 token, allows attackers to hijack victim accounts and arbitrarily increase the digital supply of assets."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/MRdoulestar/SC-RCVD/blob/main/Vulnerabilities/BTC2X.md",
              "refsource": "MISC",
              "url": "https://github.com/MRdoulestar/SC-RCVD/blob/main/Vulnerabilities/BTC2X.md"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-34273",
    "datePublished": "2021-08-03T21:24:59.000Z",
    "dateReserved": "2021-06-07T00:00:00.000Z",
    "dateUpdated": "2024-08-04T00:05:52.420Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CNVD-2021-64471

CVE-2021-34273 (GCVE-0-2021-34273)

Tags

Sightings

Nomenclature

Related by attack behaviour