title: Rancher: Downstream cluster privilege escalation through cluster and project role template binding (CRTB/PRTB)
description: An Improper Authorization vulnerability in SUSE Rancher, allows any user who has permissions to create/edit cluster role template bindings or project role template bindings (such as cluster-owner, manage cluster members, project-owner and manage project members) to gain owner permission in another project in the same cluster or in another project on a different downstream cluster. This issue affects: SUSE Rancher Rancher versions prior to 2.6.7; Rancher versions prior to 2.5.16.
problem types: CWE-285: Improper Authorization
affected:
{
product: Rancher
vendor: SUSE
versions:
lessThan: 2.6.7, status: affected, version: Rancher, versionType: custom
}
{
product: Rancher
vendor: SUSE
versions:
lessThan: 2.5.16, status: affected, version: Rancher, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 9.1
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: HIGH
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
version: 3.1
]