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CVE-2017-12155

22
FAUCET Score

CVE-2017-12155 describes a resource-permission flaw in the openstack-tripleo-heat-templates package, where the ceph.client.openstack.keyring file was created with world-readable permissions, affecting Ceph and OpenStack environments. This vulnerability carries a CVSS score of 6.3 (Medium), indicating that a local attacker with low privileges and high attack complexity could read or modify data on Ceph cluster pools, potentially impacting the confidentiality and integrity of OpenStack Block Storage volumes. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:ceph:ceph:-:*:*:*:*:openstack:*:*

CVSS Data

CVSS version used by this source: 3.0

6.3MEDIUM

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.0
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
20.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 64th percentile among its peer group of 1,296 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

pippatch availablevia ghsa
Product: tripleo-heat-templatesFixed in: 7.0.6
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 10.0 (Newton)Fixed in: openstack-tripleo-heat-templates-0:5.3.10-1.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 10.0 (Newton)Fixed in: puppet-tripleo-0:5.6.8-6.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 11.0 (Ocata)Fixed in: openstack-tripleo-heat-templates-0:6.2.12-2.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 11.0 (Ocata)Fixed in: puppet-tripleo-0:6.5.10-3.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 12.0 (Pike)Fixed in: openstack-tripleo-heat-templates-0:7.0.9-8.el7ost
View patch
redhatworkaround availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka) DirectorFixed in: openstack-tripleo-heat-templates
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno)Fixed in: openstack-tripleo-heat-templates
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) DirectorFixed in: openstack-tripleo-heat-templates
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty) DirectorFixed in: openstack-tripleo-heat-templates

Vendor Advisories (2)

pipGHSA-w8gx-hhcx-px6wmedium

Openstack tripleo-heat-templates unauthenticated file access

May 13, 2022
redhatCVE-2017-12155Moderate

openstack-tripleo-heat-templates: Ceph client keyring is world-readable when deployed by director

Sep 19, 2017

References

access.redhat.com / errata/RHSA-2018:0602
access.redhat.com / errata/RHSA-2018:1593
access.redhat.com / errata/RHSA-2018:1627
bugs.launchpad.net / tripleo/+bug/1720787
Issue TrackingPatch
bugzilla.redhat.com / show_bug.cgi
Issue TrackingMitigation