The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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to version 2.6.13, 2.7.4 or higher.
Affected versions of this package are vulnerable to Improper Preservation of Permissions allowing standard users to leverage their existing permissions to manipulate Kubernetes secrets in the local cluster, resulting in the secret being deleted, but their read-level permissions to the secret being preserved.
Note:
When this operation is followed-up by other specially crafted commands, it can result in the user gaining access to tokens belonging to service accounts in the local
cluster.
IoC
Users with audit logs enabled in Rancher can try to identify possible abuses of this issue by going through the logs. To sieve through the data users can filter by kind: Secret
with type: provisioning.cattle.io/cloud-credential
, and then investigate all log entries that affect that specific resource. A secondary check would be to filter by all operations with Opaque
Secrets within the cattle-global-data
namespace.
After patching, it is recommended that users review access methods to Rancher (including RBAC policies, tokens, and host-level node access), to ensure that no changes were made to persist access to users who have leveraged this vulnerability.