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CVE-2021-4300

6.3 · MEDIUM

A vulnerability has been found in ghostlander Halcyon and classified as critical.

Published Jan 4, 2023CWE-284EPSS 0.66%

Overview

CVE-2021-4300 is a medium-severity vulnerability. It was published on January 4, 2023 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/ghostlander/Halcyon/commit/0675b25ae9cc10b5fdc8ea3a32c642979762d45eGitHubgithub.com/ghostlander/Halcyon/releases/tag/v1.1.1.0-halRefvuldb.com/?ctiid.217417Refvuldb.com/?id.217417GitHubgithub.com/ghostlander/Halcyon/commit/0675b25ae9cc10b5fdc8ea3a32c642979762d45eGitHubgithub.com/ghostlander/Halcyon/releases/tag/v1.1.1.0-halRefvuldb.com/?ctiid.217417Refvuldb.com/?id.217417

How CyberStrike helps

Frequently asked questions

What is CVE-2021-4300?

CVE-2021-4300 is a medium-severity vulnerability. It was published on January 4, 2023 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2021-4300?

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-4300?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-4300?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-4300 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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