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CVE-2020-8201

7.4 · HIGH

Node.js < 12.18.4 and < 14.11 can be exploited to perform HTTP desync attacks and deliver malicious payloads to unsuspecting users.

Published Sep 18, 2020CWE-444EPSS 5.30%

Overview

CVE-2020-8201 is a high-severity vulnerability. It was published on September 18, 2020 and has a CVSS 3.1 base score of 7.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Node.js < 12.18.4 and < 14.11 can be exploited to perform HTTP desync attacks and deliver malicious payloads to unsuspecting users. The payloads can be crafted by an attacker to hijack user sessions, poison cookies, perform clickjacking, and a multitude of other attacks depending on the architecture of the underlying system. The attack was possible due to a bug in processing of carrier-return symbols in the HTTP header names.

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

Reflists.opensuse.org/opensuse-security-announce/2020-10/msg00011.htmlRefhackerone.com/reports/922597Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/Refnodejs.org/en/blog/vulnerability/september-2020-security-releases/Refsecurity.gentoo.org/glsa/202101-07Refsecurity.netapp.com/advisory/ntap-20201009-0004/Reflists.opensuse.org/opensuse-security-announce/2020-10/msg00011.htmlRefhackerone.com/reports/922597Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/Refnodejs.org/en/blog/vulnerability/september-2020-security-releases/

How CyberStrike helps

Frequently asked questions

What is CVE-2020-8201?

CVE-2020-8201 is a high-severity vulnerability. It was published on September 18, 2020 and has a CVSS 3.1 base score of 7.4 (HIGH).

How severe is CVE-2020-8201?

This vulnerability has a CVSS 3.1 base score of 7.4, 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-2020-8201?

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-2020-8201?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-8201 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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