Is CVE-2020-8201 in the CISA KEV catalog?

No. CVE-2020-8201 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-8201?

CVE-2020-8201 has a CVSS v3 base score of 7.4 (HIGH).

What is the EPSS score for CVE-2020-8201?

CVE-2020-8201 has an EPSS score of 5.09% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-8201?

Upgrade nodejs on debian 11 to 12.18.4~dfsg-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-8201

HIGHEPSS 91th pctl

7.4

CVSS v3

NVD

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.

CWE-444

How to fix

Remediation Available

nodejsDebian

Fixed in:12.18.4~dfsg-1CVE-2020-8201

Node.jsWindows application

Affected:14.0.0 14.11.0Fixed in:14.11.0Node.js Foundation

Affected:12.0.0 12.18.4Fixed in:12.18.4Node.js Foundation

Node.js (LTS)Windows application

Affected:12.0.0 12.18.4Fixed in:12.18.4Node.js Foundation

Affected:14.0.0 14.11.0Fixed in:14.11.0Node.js Foundation

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

5.09%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Vendor Advisory1

nodejs.org

Third-Party Advisory3

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.