Auth bypass in Ceph
CVE-2017-12155
A resource-permission flaw was found in the openstack-tripleo-heat-templates package where ceph.client.openstack.keyring is created as world-readable. A local attacker with access to the key could read or modify data on Ceph cluster pools for OpenStack as though the attacker were the OpenStack service, thus potentially reading or modifying data in an OpenStack Block Storage volume.
Vulnerability class: Broken Authentication
EPSS: 0.003 (20.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Ceph
- Openstack Openstack-tripleo-heat-templates — versions Newton, Ocata, Pike and possibly older
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Mitigation, Issue Tracking)
- secalert@redhat.com (x_refsource_CONFIRM, Patch, Issue Tracking)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
Frequently asked questions
- What is CVE-2017-12155?
- CVE-2017-12155 is a medium-severity vulnerability in Ceph, classified under Missing Authentication for Critical Function. CVSS score: 6.3/10. Published 2017-12-12.
- How severe is CVE-2017-12155?
- Medium severity. CVSS v3 base score is 6.3 out of 10.