BIT-cilium-2023-27593

Import Source
https://github.com/bitnami/vulndb/tree/main/data/cilium/BIT-cilium-2023-27593.json
Aliases
Published
2024-05-15T12:08:31.683Z
Modified
2024-05-19T02:24:11.245439Z
Summary
[none]
Details

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.11.15, 1.12.8, and 1.13.1, an attacker with access to a Cilium agent pod can write to /opt/cni/bin due to a hostPath mount of that directory in the agent pod. By replacing the CNI binary with their own malicious binary and waiting for the creation of a new pod on the node, the attacker can gain access to the underlying node.The issue has been fixed and the fix is available on versions 1.11.15, 1.12.8, and 1.13.1. Some workarounds are available. Kubernetes RBAC should be used to deny users and service accounts exec access to Cilium agent pods. In cases where a user requires exec access to Cilium agent pods, but should not have access to the underlying node, no workaround is possible.

References

Affected packages

Bitnami / cilium

Package

Name
cilium

Affected ranges

Type
SEMVER
Events
Introduced
0The exact introduced commit is unknown
Fixed
1.11.15
Introduced
1.12.0
Fixed
1.12.8
Introduced
1.13.0
Fixed
1.13.1