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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (19.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Ceph
- OpenStack Openstack-Tripleo-Heat-Templates — versions Newton, Ocata, Pike and possibly older
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2018:1593 (vendor-advisory)
- access.redhat.com/errata/RHSA-2018:1627 (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi (Mitigation, Issue Tracking)
- bugs.launchpad.net/tripleo/+bug/1720787 (Patch, Issue Tracking)
- access.redhat.com/errata/RHSA-2018:0602 (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.