Vulnerability-Lookup

CNVD-2020-14090

Vulnerability from cnvd - Published: 2020-02-27

Title

Business Alliance Financial Circle（BAFC）越权漏洞

Description

Business Alliance Financial Circle（BAFC）是一款加密货币。 BAFC的智能合约实现中的‘UBSexToken()’函数存在越权漏洞，该漏洞源于该函数对外公开并不会检查调用者的身份。攻击者可利用该漏洞修改智能合约的所有人。

Severity

高

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新：https://github.com/SmartContractResearcher/SmartContractSecurity/blob/master/New%20Vulnerabilities%20Allow%20Anyone%20to%20Own%20Certain%20ERC20-Based%20Smart%20Contracts(CVE-2018-19830%2C%20CVE-2018-19831%2C%20CVE-2018-19832%2C%20CVE-2018-19833%2C%20CVE-2018-19834)/README.md

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-19830

Impacted products

Name
BAFC Business Alliance Financial Circle（BAFC）

Show details on source website

JSON

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  "description": "Business Alliance Financial Circle\uff08BAFC\uff09\u662f\u4e00\u6b3e\u52a0\u5bc6\u8d27\u5e01\u3002\n\nBAFC\u7684\u667a\u80fd\u5408\u7ea6\u5b9e\u73b0\u4e2d\u7684\u2018UBSexToken()\u2019\u51fd\u6570\u5b58\u5728\u8d8a\u6743\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8be5\u51fd\u6570\u5bf9\u5916\u516c\u5f00\u5e76\u4e0d\u4f1a\u68c0\u67e5\u8c03\u7528\u8005\u7684\u8eab\u4efd\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4fee\u6539\u667a\u80fd\u5408\u7ea6\u7684\u6240\u6709\u4eba\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1ahttps://github.com/SmartContractResearcher/SmartContractSecurity/blob/master/New%20Vulnerabilities%20Allow%20Anyone%20to%20Own%20Certain%20ERC20-Based%20Smart%20Contracts(CVE-2018-19830%2C%20CVE-2018-19831%2C%20CVE-2018-19832%2C%20CVE-2018-19833%2C%20CVE-2018-19834)/README.md",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-14090",
  "openTime": "2020-02-27",
  "products": {
    "product": "BAFC Business Alliance Financial Circle\uff08BAFC\uff09"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-19830",
  "serverity": "\u9ad8",
  "submitTime": "2020-01-02",
  "title": "Business Alliance Financial Circle\uff08BAFC\uff09\u8d8a\u6743\u6f0f\u6d1e"
}

CVE-2018-19830 (GCVE-0-2018-19830)

Vulnerability from cvelistv5 – Published: 2019-12-31 15:06 – Updated: 2024-08-05 11:44

Summary

The UBSexToken() function of a smart contract implementation for Business Alliance Financial Circle (BAFC), an tradable Ethereum ERC20 token, allows attackers to change the owner of the contract, because the function is public (by default) and does not check the caller's identity.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2260 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/SmartContractResearcher/SmartC…	x_refsource_MISC

Date Public

2019-02-20 00:00

Show details on NVD website

JSON

To clipboard

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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.

Vulnerability timeline

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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.

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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.

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