Privilege escalation in Openkruise Kruise
CVE-2023-30617
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Openkruise Kruise — versions >= 0.8.0, < 1.3.1, = 1.4.0, >= 1.5.0, < 1.5.2
Weakness classification (CWE)
References
- github.com/openkruise/kruise/security/advisories/GHSA-437m-7hj5-9mpw (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-30617?
- CVE-2023-30617 is a medium-severity vulnerability in Openkruise Kruise, classified under CWE-250. CVSS score: 6.5/10. Published 2024-01-03.
- How severe is CVE-2023-30617?
- Medium severity. CVSS v3 base score is 6.5 out of 10.