Bug 1210705 (CVE-2015-3010)

Summary:	CVE-2015-3010 ceph-deploy: keyring permissions are world readable in ~ceph
Product:	[Other] Security Response	Reporter:	Vasyl Kaigorodov <vkaigoro>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	adeza, branto, ceph-eng-bugs, fsimonce, jrusnack, kdreyer, ktdreyer, sisharma, trhoden, trhoden
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	ceph-deploy 1.5.23	Doc Type:	Bug Fix
Doc Text:	It was discovered that ceph-deploy, a utility for deploying Red Hat Ceph Storage, would create the keyring file with world readable permissions, which could possibly allow a local user to obtain authentication credentials from the keyring file.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-10-29 20:48:07 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1210706, 1211756, 1225209
Bug Blocks:	1210708

Description Vasyl Kaigorodov 2015-04-10 11:59:26 UTC

ceph-deply versions before 1.5.23 had an issue where keyring permissions were world readable.

CVE assigned: http://seclists.org/oss-sec/2015/q2/91
Upstream fix: https://github.com/ceph/ceph-deploy/commit/eee56770393bf19ed2dd5389226c6190c08dee3f

Comment 1 Vasyl Kaigorodov 2015-04-10 12:00:19 UTC

Created ceph-deploy tracking bugs for this issue:

Affects: fedora-all [bug 1210706]

Comment 5 Siddharth Sharma 2015-04-21 14:24:34 UTC

Analysis
========

In the following code of ceph-deploy

keyring = '/etc/ceph/{cluster}.client.admin.keyring'.format(
        cluster=args.cluster)
    r = fetch_file(
        args=args,
        frompath=keyring,
        topath='{cluster}.client.admin.keyring'.format(
            cluster=args.cluster),
        _hosts=args.mon,
 )

It copies the keys without forcing the file permissions which by default leads to 777 which makes it world readable while copying it to all nodes or monitors

Comment 6 Fedora Update System 2015-04-21 19:23:54 UTC

ceph-deploy-1.5.23-1.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 Fedora Update System 2015-04-21 19:29:23 UTC

ceph-deploy-1.5.23-1.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 12 errata-xmlrpc 2015-06-11 15:54:40 UTC

This issue has been addressed in the following products:

  Red Hat Ceph Storage 1.2 for RHEL 7
  Red Hat Ceph Storage 1.2 for RHEL 6

Via RHSA-2015:1092 https://access.redhat.com/errata/RHSA-2015:1092

Comment 13 errata-xmlrpc 2015-08-07 00:58:13 UTC

This issue has been addressed in the following products:

Red Hat Ceph Storage 1.2 for Ubuntu 12.04
Red Hat Ceph Storage 1.2 for Ubuntu 14.04

Via RHSA-2015:1579 https://access.redhat.com/errata/RHSA-2015:1579

Comment 14 errata-xmlrpc 2015-08-17 07:30:05 UTC

This issue has been addressed in the following products:
 
 Red Hat Ceph Storage 1.2 for CentOS 6

Via RHSA-2015:1631 https://access.redhat.com/errata/RHSA-2015:1631