Vulnerabilities > CVE-2021-25748 - Unspecified vulnerability in Kubernetes Ingress-Nginx

CVSS 6.5 - MEDIUM

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

LOW

Confidentiality impact

HIGH

Integrity impact

NONE

Availability impact

NONE

network

low complexity

kubernetes

NVD

Published: 2023-05-24

Updated: 2024-11-21

Summary

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use a newline character to bypass the sanitization of 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.

Vulnerable Configurations

Part	Description	Count
Application	Kubernetes Kubernetes Ingress Nginx - Kubernetes Ingress Nginx 0.9.0 Kubernetes Ingress Nginx 0.9.1 Kubernetes Ingress Nginx 0.9.2 Kubernetes Ingress Nginx 0.9.3 Kubernetes Ingress Nginx 0.9.4 Kubernetes Ingress Nginx 0.9.5 Kubernetes Ingress Nginx 0.9.6 Kubernetes Ingress Nginx 0.10.0 Kubernetes Ingress Nginx 0.10.1 Kubernetes Ingress Nginx 0.10.2 Kubernetes Ingress Nginx 0.11.0 Kubernetes Ingress Nginx 0.12.0 Kubernetes Ingress Nginx 0.13.0 Kubernetes Ingress Nginx 0.14.0 Kubernetes Ingress Nginx 0.15.0 Kubernetes Ingress Nginx 0.16.0 Kubernetes Ingress Nginx 0.16.1 Kubernetes Ingress Nginx 0.16.2 Kubernetes Ingress Nginx 0.17.0 Kubernetes Ingress Nginx 0.17.1 Kubernetes Ingress Nginx 0.18.0 Kubernetes Ingress Nginx 0.19.0 Kubernetes Ingress Nginx 0.20.0 Kubernetes Ingress Nginx 0.21.0 Kubernetes Ingress Nginx 0.22.0 Kubernetes Ingress Nginx 0.23.0 Kubernetes Ingress Nginx 0.24.0 Kubernetes Ingress Nginx 0.24.1 Kubernetes Ingress Nginx 0.25.0 Kubernetes Ingress Nginx 0.25.1 Kubernetes Ingress Nginx 0.26.0 Kubernetes Ingress Nginx 0.26.1 Kubernetes Ingress Nginx 0.26.2 Kubernetes Ingress Nginx 0.27.0 Kubernetes Ingress Nginx 0.27.1 Kubernetes Ingress Nginx 0.28.0 Kubernetes Ingress Nginx 0.29.0 Kubernetes Ingress Nginx 0.30.0 Kubernetes Ingress Nginx 0.31.0 Kubernetes Ingress Nginx 0.31.1 Kubernetes Ingress Nginx 0.32.0 Kubernetes Ingress Nginx 0.33.0 Kubernetes Ingress Nginx 0.34.0 Kubernetes Ingress Nginx 0.34.1 Kubernetes Ingress Nginx 0.35.0 Kubernetes Ingress Nginx 0.40.0 Kubernetes Ingress Nginx 0.40.1 Kubernetes Ingress Nginx 0.40.2 Kubernetes Ingress Nginx 0.41.0 Kubernetes Ingress Nginx 0.41.1 Kubernetes Ingress Nginx 0.41.2 Kubernetes Ingress Nginx 0.42.0 Kubernetes Ingress Nginx 0.43.0 Kubernetes Ingress Nginx 0.44.0 Kubernetes Ingress Nginx 0.45.0 Kubernetes Ingress Nginx 0.46.0 Kubernetes Ingress Nginx 0.47.0 Kubernetes Ingress Nginx 0.48.1 Kubernetes Ingress Nginx 0.49.0 Kubernetes Ingress Nginx 0.49.1 Kubernetes Ingress Nginx 0.49.2 Kubernetes Ingress Nginx 0.49.3 Kubernetes Ingress Nginx 1.0.0 Kubernetes Ingress Nginx 1.0.1 Kubernetes Ingress Nginx 1.0.2 Kubernetes Ingress Nginx 1.0.3 Kubernetes Ingress Nginx 1.0.4 Kubernetes Ingress Nginx 1.2.0	93

Summary

Vulnerable Configurations

References