CVE-2021-25745 HIGH

CVE-2021-25745: Ingress-nginx path can be pointed to service account token file

Vendor Kubernetes
Product Kubernetes ingress-nginx
Weakness CWE-20 · Input validation
Published May 6, 2022
Last update September 16, 2024

CVSS base score

7.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

What the vulnerability does

01Description

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the spec.rules[].http.paths[].path field of an Ingress object (in the networking.k8s.io or extensions API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.

Key dates

02Disclosure timeline

May 6, 2022 CVE published
September 16, 2024 Record updated

Related vulnerabilities

04Related CVE