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Rancher <= 2.2.4 Privilege Escalation Vulnerability

Information

Severity

Severity

Medium

Family

Family

Privilege escalation

CVSSv2 Base

CVSSv2 Base

4.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:S/C:P/I:N/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

4 years ago

Summary

Rancher is prone to a privilege escalation vulnerability.

Insight

Insight

Unprivileged users (if allows to deploy nodes) can gain admin access to the Rancher management plane because node driver options intentionally allow posting certain data to the cloud. The problem is that a user could choose to post a sensitive file such as /root/.kube/config or /var/lib/rancher/management-state/cred/kubeconfig-system.yaml.

Affected Software

Affected Software

Rancher through version 2.2.3.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Update to version 2.2.4.

Common Vulnerabilities and Exposures (CVE)