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CVE-2017-12842

7.5 · HIGH

Bitcoin Core before 0.14 allows an attacker to create an ostensibly valid SPV proof for a payment to a victim who uses an SPV wallet, even if that payment did not actually occur.

Published Mar 16, 2020CWE-20EPSS 2.22%

Overview

CVE-2017-12842 is a high-severity vulnerability. It was published on March 16, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Bitcoin Core before 0.14 allows an attacker to create an ostensibly valid SPV proof for a payment to a victim who uses an SPV wallet, even if that payment did not actually occur. Completing the attack would cost more than a million dollars, and is relevant mainly only in situations where an autonomous system relies solely on an SPV proof for transactions of a greater dollar amount.

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

Refbitslog.wordpress.com/2018/06/09/leaf-node-weakness-in-bitcoin-merkle-tree-design/Refen.bitcoin.it/wiki/Common_Vulnerabilities_and_ExposuresReflists.linuxfoundation.org/pipermail/bitcoin-dev/2019-February/016697.htmlRefbitslog.wordpress.com/2018/06/09/leaf-node-weakness-in-bitcoin-merkle-tree-design/Refen.bitcoin.it/wiki/Common_Vulnerabilities_and_ExposuresReflists.linuxfoundation.org/pipermail/bitcoin-dev/2019-February/016697.html

How CyberStrike helps

Frequently asked questions

What is CVE-2017-12842?

CVE-2017-12842 is a high-severity vulnerability. It was published on March 16, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2017-12842?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-12842?

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-2017-12842?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-12842 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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