CVE-2021-25748

Ingress-nginx `path` sanitization can be bypassed with newline character in go/k8s.io/ingress-nginx

Identifiers

GHSA-863x-868h-968x, CVE-2021-25748

Package Slug

go/k8s.io/ingress-nginx

Vulnerability

Ingress-nginx path sanitization can be bypassed with newline character

Description

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.

Affected Versions

All versions before 1.2.1

Solution

Upgrade to version 1.2.1 or above.

Last Modified

2023-05-25

source