etcd Snapshot Exposure

critical

etcd-snapshot-exposure

Attacker accesses etcd snapshots or backups which contain complete cluster state including all secrets, ConfigMaps, service account tokens, and RBAC configurations

Information Disclosure

MITRE ATT&CK techniques

IDNameTactic
T1530 Data from Cloud Storage Object Collection
T1552 Unsecured Credentials Credential Access

Common Weakness Enumeration

Mitigating controls

ctrl-etcdsnap-1
Encrypt etcd snapshots at rest using strong encryption
ctrl-etcdsnap-2
Store snapshots in access-controlled storage with audit logging
ctrl-etcdsnap-3
Implement backup retention policies and secure deletion
ctrl-etcdsnap-4
Use separate credentials for backup operations with minimal permissions
ctrl-etcdsnap-5
Monitor access to snapshot storage locations

References