CVE-2020-5416

CF clusters with NGINX in front of them may be vulnerable to DoS

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Cloud Foundry Routing (Gorouter), versions prior to 0.204.0, when used in a deployment with NGINX reverse proxies in front of the Gorouters, is potentially vulnerable to denial-of-service attacks in which an unauthenticated malicious attacker can send specially-crafted HTTP requests that may cause the Gorouters to be dropped from the NGINX backend pool.

Cloud Foundry Routing (Gorouter), versiones anteriores a 0.204.0, cuando es usado en una implementación con proxys inversos NGINX frente a los Gorouters, es potencialmente vulnerable a ataques de denegación de servicio en los que un atacante malicioso no autenticado puede enviar peticiones HTTP especialmente diseñadas que pueden causar que los Gorouters sean eliminados del grupo de backend de NGINX.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-03 CVE Reserved
2020-08-21 CVE Published
2023-03-07 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-404: Improper Resource Shutdown or Release

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.cloudfoundry.org/blog/cve-2020-5416	2021-06-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cloudfoundry Search vendor "Cloudfoundry"		Cf-deployment Search vendor "Cloudfoundry" for product "Cf-deployment"				< 13.13.0 Search vendor "Cloudfoundry" for product "Cf-deployment" and version " < 13.13.0"		-		Affected
Cloudfoundry Search vendor "Cloudfoundry"		Routing-release Search vendor "Cloudfoundry" for product "Routing-release"				< 0.204.0 Search vendor "Cloudfoundry" for product "Routing-release" and version " < 0.204.0"		-		Affected