Privilege escalation in Kanisterio Kanister
CVE-2024-43403
Kanister is a data protection workflow management tool. The kanister has a deployment called default-kanister-operator, which is bound with a ClusterRole called edit via ClusterRoleBinding. The "edit" ClusterRole is one of Kubernetes default-created ClusterRole, and it has the create/patch/udpate verbs of daemonset resources, create verb of serviceaccount/token resources, and impersonate verb of serviceaccounts resources. A malicious user can leverage access the worker node which has this component to make a cluster-level privilege escalation.
Vulnerability class: Privilege Escalation
EPSS: 0.005 (41.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Kanisterio Kanister — versions <= 0.110.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-43403?
- CVE-2024-43403 is a high-severity vulnerability in Kanisterio Kanister, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2024-08-20.
- How severe is CVE-2024-43403?
- High severity. CVSS v3 base score is 8.8 out of 10.