CVE-2020-8553: Kubernetes ingress-nginx Compromise of auth via subset/superset namespace names
First published: Wed Jul 29 2020(Updated: )
The Kubernetes ingress-nginx component prior to version 0.28.0 allows a user with the ability to create namespaces and to read and create ingress objects to overwrite the password file of another ingress which uses nginx.ingress.kubernetes.io/auth-type: basic and which has a hyphenated namespace or secret name.
Credit: jordan@liggitt.net jordan@liggitt.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Kubernetes ingress-nginx | <0.28.0 |
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Reference Links
Frequently Asked Questions
What is CVE-2020-8553?
CVE-2020-8553 is a vulnerability in the Kubernetes ingress-nginx component prior to version 0.28.0.
What is the severity of CVE-2020-8553?
CVE-2020-8553 has a severity score of 5.9 (medium).
How can CVE-2020-8553 be exploited?
CVE-2020-8553 can be exploited by a user with the ability to create namespaces and to read and create ingress objects to overwrite the password file of another ingress.
Which software versions are affected by CVE-2020-8553?
The Kubernetes ingress-nginx component versions prior to 0.28.0 are affected by CVE-2020-8553.
Is there a fix for CVE-2020-8553?
Yes, the fix for CVE-2020-8553 is to upgrade to version 0.28.0 or later of the Kubernetes ingress-nginx component.
- collector/github-advisory-latest
- alias/GHSA-hhpm-74pm-hf35
- alias/CVE-2020-8553
- collector/github-advisory
- collector/nvd-index
- collector/nvd-cve
- agent/weakness
- agent/author
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/severity
- agent/last-modified-date
- agent/title
- agent/tags
- agent/description
- agent/event
- agent/first-publish-date
- package-manager/go
- vendor/kubernetes
- canonical/kubernetes ingress-nginx