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CVE-2021-4300— ghostlander Halcyon Block Verification main.cpp AddToBlockIndex access control

Quick assessment

Affected
ghostlander Halcyon
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Halcyon是John Doering个人开发者的一种去中心化的开源数字货币。 ghostlander Halcyon存在安全漏洞，该漏洞源于组件Block Verification的src/main.cpp文件中的函数CBlock::AddToBlockIndex，攻击者利用该漏洞可导致不正确的访问控制。

CVSS 6.3 · Medium EPSS 0.66% · P49

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-4300

Vulnerability Information
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Vulnerability Title
ghostlander Halcyon Block Verification main.cpp AddToBlockIndex access control
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in ghostlander Halcyon and classified as critical. Affected by this vulnerability is the function CBlock::AddToBlockIndex of the file src/main.cpp of the component Block Verification. The manipulation leads to improper access controls. The attack can be launched remotely. Upgrading to version 1.1.1.0-hal is able to address this issue. The identifier of the patch is 0675b25ae9cc10b5fdc8ea3a32c642979762d45e. It is recommended to upgrade the affected component. The identifier VDB-217417 was assigned to this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Halcyon 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Halcyon是John Doering个人开发者的一种去中心化的开源数字货币。 ghostlander Halcyon存在安全漏洞，该漏洞源于组件Block Verification的src/main.cpp文件中的函数CBlock::AddToBlockIndex，攻击者利用该漏洞可导致不正确的访问控制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ghostlander Halcyon n/a -

II. Public POCs for CVE-2021-4300

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III. Intelligence Information for CVE-2021-4300

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Patches & Fixes for CVE-2021-4300 (1)

Vendor Advisories for CVE-2021-4300 (2)

Other References for CVE-2021-4300 (1)

IV. Related Vulnerabilities

Same vendor: ghostlander
Same weakness: CWE-284

V. Comments for CVE-2021-4300

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