CVE-2024-42480 Kamaji's RBAC Roles for `etcd` are not disjunct

High 8.1 Published Updated

Attackers can read, write, and delete data across different control planes due to overly permissive RBAC roles in Kamaji.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-42480?

CVE-2024-42480 is a high-severity missing authorization vulnerability in clastix kamaji, published on 12 Aug 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Kamaji is the Hosted Control Plane Manager for Kubernetes. In versions 1.0.0 and earlier, Kamaji uses an "open at the top" range definition in RBAC for etcd roles leading to some TCPs API servers being able to read, write, and delete the data of other control planes. This vulnerability is fixed in edge-24.8.2.

Weakness: CWE-284

Which versions are affected by CVE-2024-42480?

3 open source packages ship an affected version, including github.com/clastix/kamaji. It affects 1 product.

PackageAffectedFixed in
github.com/clastix/kamaji GoAll versionsNone
github.com/clastix/kamaji GoAll versions to 1.0.0None
github.com/clastix/kamaji GoAll versions to 1.0.0None

Products include Clastix Kamaji.

How do I fix CVE-2024-42480?

No fix has been published for CVE-2024-42480 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2024-42480 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-42480 exists.

Sources

Also known as GHSA-6r4j-4rjc-8vw5, GO-2024-3063.

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