CVE-2020-5404

Authentication Leak On Redirect With Reactor Netty HttpClient

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects.

El HttpClient del Reactor Netty, versiones 0.9.x anteriores a 0.9.5, y versiones 0.8.x anteriores a 0.8.16, puede ser usado incorrectamente, conllevando a un filtrado de credenciales durante un redireccionamiento hacia un dominio diferente. A fin de que esto ocurra, el HttpClient debe haber sido configurado explícitamente para seguir los redireccionamientos.

Red Hat support for Spring Boot provides an application platform that reduces the complexity of developing and operating applications for OpenShift as a containerized platform. This release of Red Hat support for Spring Boot 2.7.2 serves as a replacement for Red Hat support for Spring Boot 2.5.12, and includes security, bug fixes and enhancements. For more information, see the release notes listed in the References section. Issues addressed include denial of service and deserialization vulnerabilities.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-03 CVE Reserved
2020-03-03 CVE Published
2024-09-17 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-522: Insufficiently Protected Credentials

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://pivotal.io/security/cve-2020-5404	2021-07-07
https://access.redhat.com/security/cve/CVE-2020-5404	2022-12-14
https://bugzilla.redhat.com/show_bug.cgi?id=1975160	2022-12-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Pivotal Search vendor "Pivotal"		Reactor Netty Search vendor "Pivotal" for product "Reactor Netty"				>= 0.8.0 <= 0.8.15 Search vendor "Pivotal" for product "Reactor Netty" and version " >= 0.8.0 <= 0.8.15"		-		Affected
Pivotal Search vendor "Pivotal"		Reactor Netty Search vendor "Pivotal" for product "Reactor Netty"				>= 0.9.0 <= 0.9.4 Search vendor "Pivotal" for product "Reactor Netty" and version " >= 0.9.0 <= 0.9.4"		-		Affected