CVE-2023-30617: Leverage the kruise-daemon pod to list all secrets in the entire cluster

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-01-03 · updated 2026-06-17
Weakness: CWE-250

Description

Kruise provides automated management of large-scale applications on Kubernetes. Starting in version 0.8.0 and prior to versions 1.3.1, 1.4.1, and 1.5.2, an attacker who has gained root privilege of the node that kruise-daemon run can leverage the kruise-daemon pod to list all secrets in the entire cluster. After that, the attacker can leverage the "captured" secrets (e.g. the kruise-manager service account token) to gain extra privileges such as pod modification. Versions 1.3.1, 1.4.1, and 1.5.2 fix this issue. A workaround is available. For users that do not require imagepulljob functions, they can modify kruise-daemon-role to drop the cluster level secret get/list privilege.

Affected products

openkruise kruise: from 0.8.0 before 1.3.1; from 1.4.0 before 1.4.1; from 1.5.0 before 1.5.2 — fixed in 1.3.1, 1.4.1, 1.5.2

How to fix

Upgrade to a fixed version: openkruise kruise 1.3.1, 1.4.1, 1.5.2. Check the vendor advisory for mitigations.

References

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