PT-2023-6651 · Unknown · Ingress-Nginx

Jan-Otto Kröpke · Published 2023-10-25 · Updated 2025-03-28 · CVE-2023-5044

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions ingress-nginx versions prior to v1.9.0

Description The issue is related to code injection via the nginx.ingress.kubernetes.io/permanent-redirect annotation in the ingress-nginx controller in a Kubernetes cluster. This can allow a remote attacker to inject arbitrary commands and potentially obtain the credentials of the ingress-nginx controller, which by default has access to all secrets in the cluster.

Recommendations For versions prior to v1.9.0, update to version v1.9.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the nginx.ingress.kubernetes.io/permanent-redirect annotation to minimize the risk of exploitation.

Exploit

Fix

RCE

Code Injection

Weakness Enumeration

CWE-20

CWE-94

Related Identifiers

BDU:2023-07421

BIT-NGINX-INGRESS-CONTROLLER-2023-5044

CVE-2023-5044

GHSA-FP9F-44C2-CW27

GO-2024-2428

Affected Products

Ingress-Nginx

References · 39

• 🔥 https://github.com/r0binak/CVE-2023-5044 · Exploit
• https://github.com/kubernetes/ingress-nginx/issues/10572 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-5044 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2024-2428 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-5044 · Security Note
• https://osv.dev/vulnerability/GHSA-fp9f-44c2-cw27 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-07421 · Security Note
• https://osv.dev/vulnerability/BIT-nginx-ingress-controller-2023-5044 · Vendor Advisory
• https://github.com/kubernetes/ingress-nginx · Note
• https://t.me/ckure/13163 · Telegram Post
• https://groups.google.com/g/kubernetes-security-announce/c/ukuYYvRNel0 · Note
• https://t.me/cvenotify/60393 · Telegram Post
• https://t.me/cvenotify/73274 · Telegram Post
• https://security.netapp.com/advisory/ntap-20240307-0012 · Note
• https://twitter.com/rpkatz/status/1717376940087058798 · Twitter Post