ghostlander Halcyon prior 1.1.1.0-hal Block Verification src/main.cpp CBlock::AddToBlockIndex access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

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 with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 01/04/2023 as 0675b25ae9cc10b5fdc8ea3a32c642979762d45e. The advisory is shared at github.com. This vulnerability is known as CVE-2021-4300. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 1.1.1.0-hal eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 0675b25ae9cc10b5fdc8ea3a32c642979762d45e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. The advisory contains the following remark:

Block Verification Vulnerability Eliminated Fixed a critical vulnerability allowing to accept a proof-of-work block containing one or more coin stake transactions in addition to a valid coin base. Output values of such coin stakes were out of control.

Productinfo

Vendor

Name

License

  • open-source

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CNA Base Score: 6.3
CNA Vector (VulDB): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

NVD Base Score: 🔒

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Halcyon 1.1.1.0-hal
Patch: 0675b25ae9cc10b5fdc8ea3a32c642979762d45e

Timelineinfo

01/04/2023 Advisory disclosed
01/04/2023 +0 days CVE reserved
01/04/2023 +0 days VulDB entry created
01/28/2023 +24 days VulDB last update

Sourcesinfo

Advisory: 0675b25ae9cc10b5fdc8ea3a32c642979762d45e
Status: Confirmed

CVE: CVE-2021-4300 (🔒)

Entryinfo

Created: 01/04/2023 10:19 PM
Updated: 01/28/2023 11:31 AM
Changes: 01/04/2023 10:19 PM (45), 01/28/2023 11:23 AM (2), 01/28/2023 11:31 AM (28)
Complete: 🔍

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