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CVE-2018-20587

5.5 · MEDIUM

Bitcoin Core 0.12.0 through 0.17.1 and Bitcoin Knots 0.12.0 through 0.17.x before 0.17.1.knots20181229 have Incorrect Access Control.

Published Feb 11, 2019EPSS 0.35%

Overview

CVE-2018-20587 is a medium-severity vulnerability. It was published on February 11, 2019 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Bitcoin Core 0.12.0 through 0.17.1 and Bitcoin Knots 0.12.0 through 0.17.x before 0.17.1.knots20181229 have Incorrect Access Control. Local users can exploit this to steal currency by binding the RPC IPv4 localhost port, and forwarding requests to the IPv6 localhost port.

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

Refen.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2018-20587Refmedium.com/%40lukedashjr/cve-2018-20587-advisory-and-full-disclosure-a3105551e78bRefen.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2018-20587Refmedium.com/%40lukedashjr/cve-2018-20587-advisory-and-full-disclosure-a3105551e78b

How CyberStrike helps

Frequently asked questions

What is CVE-2018-20587?

CVE-2018-20587 is a medium-severity vulnerability. It was published on February 11, 2019 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

How severe is CVE-2018-20587?

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2018-20587?

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-2018-20587?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-20587 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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