CVE-2020-5420

Gorouter is vulnerable to DoS attack via invalid HTTP responses

Description

Cloud Foundry Routing (Gorouter) versions prior to 0.206.0 allow a malicious developer with "cf push" access to cause denial-of-service to the CF cluster by pushing an app that returns specially crafted HTTP responses that crash the Gorouters.

Category

7.7
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.18%
Vendor Advisory cloudfoundry.org
Affected: Cloud Foundry Routing
Affected: Cloud Foundry CF Deployment
Published at:
Updated at:

References

Link Tags
https://www.cloudfoundry.org/blog/cve-2020-5420 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-5420?
CVE-2020-5420 has been scored as a high severity vulnerability.
How to fix CVE-2020-5420?
To fix CVE-2020-5420, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-5420 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-5420 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-5420?
CVE-2020-5420 affects Cloud Foundry Routing, Cloud Foundry CF Deployment.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.