CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:LCeph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the Monitor subscription handler fails to properly authorize access to the configuration-key store, allowing any CephX user with only `mon allow r` capabilities to read the entire store by sending a single crafted MMonSubscribe message. The config-key store holds sensitive secrets including OSD LUKS disk-encryption passphrases and, on cephadm-managed clusters, the SSH private key that cephadm uses to reach every host in the cluster. Because that key grants root on every node under the default cephadm configuration, a low-privileged read-only account can escalate to full cluster and host compromise. This issue is fixed in versions 20.2.4 and 19.2.6
Multiple vulnerabilities have been discovered in Ceph, allowing an attacker to elevate privileges, compromise data confidentiality, and bypass security policies. These vulnerabilities affect older versions of the distrib…