CVE-2020-8201

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.

How to fix CVE-2020-8201

To remediate CVE-2020-8201, upgrade the affected package to a fixed version below.

• —upgrade to 12.20.1-r0 or later
• —upgrade to 12.18.4 or later
• —upgrade to 12.18.4 or later
• —upgrade to 12.18.4~dfsg-1 or later

Is CVE-2020-8201 being exploited?

Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.

Affected packages (4)

• from 0, < 12.20.1-r0
• >= 12.0.0, < 12.18.4, >= 14.0.0, < 14.11.0
• >= 12.0.0, < 12.18.4, >= 14.0.0, < 14.11.0
• from 0, < 12.18.4~dfsg-1

CVSS scores

References (9)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2020-8201
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2020-8201
• WEBlists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html
• WEBhackerone.com/reports/922597