Public-facing Kubernetes clusters at risk of total takeover
Public-facing Kubernetes clusters at risk of total takeover
7 comments
-
[...] a specially-crafted Ingress object can cause nginx to misbehave in various ways, including revealing the values of Secrets that are accessible to ingress-nginx. By default, ingress-nginx has access to all Secrets cluster-wide, [...]
Holy crap, what if I'm gonna be home for a couple of days?
-
Yeah, whatever you were planning on doing, you're doing this instead.
-
-
The good news is that Wiz disclosed this mess to the developers overseeing Kubernetes in December 2024 and January 2025, and that fixes for five CVEs – collectively dubbed IngressNightmare by Wiz – were issued on March 10, with the details under embargo until now.
Nginx Controller version 1.12.1 and 1.11.5 fix the flaws – and they are available to download at this link.
Quick reference to find out what version ingress-nginx you're running:
$ kubectl exec -it -n NAMESPACE INGRESS_NGINX_CONTROLLER_POD -- /nginx-ingress-controller --version ------------------------------------------------------------------------------- NGINX Ingress controller Release: v1.11.2 Build: 46e76e5916813cfca2a9b0bfdc34b69a0000f6b9 Repository: https://github.com/kubernetes/ingress-nginx nginx version: nginx/1.25.5 -------------------------------------------------------------------------------
🙁
-
I've found a few exposed
/metricsfor kubernetes stuff because their IP poked my honeypot. I'd assume they've been hacked and turned into a botnet or something.
-
Use watchtower folks if you're self hosting. https://containrrr.dev/watchtower/
-
That’s docker, not kubernetes.
-
7 comments