Arch Linux Security Advisory ASA-202111-7 ========================================= Severity: High Date : 2021-11-18 CVE-ID : CVE-2021-25742 Package : kubectl-ingress-nginx Type : information disclosure Remote : Yes Link : https://security.archlinux.org/AVG-2490 Summary ======= The package kubectl-ingress-nginx before version 1.0.4-1 is vulnerable to information disclosure. Resolution ========== Upgrade to 1.0.4-1. # pacman -Syu "kubectl-ingress-nginx>=1.0.4-1" The problem has been fixed upstream in version 1.0.4. Workaround ========== This issue cannot be fixed solely by upgrading kubectl-ingress-nginx. To mitigate, set allow-snippet-annotations to false in your ingress- nginx ConfigMap based on how you deploy ingress-nginx, see the references for more information. Description =========== A security issue was discovered in ingress-nginx before versions 1.0.1 and 0.49.1 where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster. This issue cannot be fixed solely by upgrading ingress-nginx. To mitigate, set allow-snippet-annotations to false in your ingress-nginx ConfigMap based on how you deploy ingress-nginx, see the references for more information. Impact ====== An authenticated remote attacker could disclose all secrets in the cluster. References ========== https://github.com/kubernetes/ingress-nginx/issues/7837 https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/co... https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/co... https://github.com/kubernetes/ingress-nginx/pull/7670 https://github.com/kubernetes/ingress-nginx/commit/4fc57dcc4969cd907c6eeadff... https://security.archlinux.org/CVE-2021-25742