CVE-2020-8201

nodejs: HTTP request smuggling due to CR-to-Hyphen conversion

Severity Score

7.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Node.js versiones anteriores a 12.18.4 y versiones anteriores a 14.11, pueden ser explotado para llevar a cabo ataques de desincronización HTTP y entregar cargas útiles maliciosas a usuarios desprevenidos. Las cargas útiles pueden ser diseñadas por un atacante para secuestrar sesiones de usuario, envenenar cookies, llevar a cabo secuestro del click y una multitud de otros ataques dependiendo de la arquitectura del sistema subyacente. El ataque fue posible debido a un error en el procesamiento de los símbolos carrier-return en los nombres de encabezado HTTP

A flaw was found in Node.js, where affected Node.js versions converted carriage returns in HTTP request headers to a hyphen before parsing. This flaw leads to HTTP Request Smuggling as it is a non-standard interpretation of the header. The highest threat from this vulnerability is to confidentiality and integrity.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-28 CVE Reserved
2020-09-18 CVE Published
2024-08-04 CVE Updated
2024-08-25 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

CAPEC

References (7)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20201009-0004	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6	2023-11-07
https://nodejs.org/en/blog/vulnerability/september-2020-security-releases	2023-11-07
https://security.gentoo.org/glsa/202101-07	2023-11-07
https://access.redhat.com/security/cve/CVE-2020-8201	2020-11-12
https://bugzilla.redhat.com/show_bug.cgi?id=1879311	2020-11-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 12.0.0 < 12.18.4 Search vendor "Nodejs" for product "Node.js" and version " >= 12.0.0 < 12.18.4"		lts		Affected
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 14.0.0 < 14.11.0 Search vendor "Nodejs" for product "Node.js" and version " >= 14.0.0 < 14.11.0"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.2 Search vendor "Opensuse" for product "Leap" and version "15.2"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected