Bug 1477403 (CVE-2017-7549) - CVE-2017-7549 instack-undercloud: uses hardcoded /tmp paths
Summary: CVE-2017-7549 instack-undercloud: uses hardcoded /tmp paths
Status: CLOSED ERRATA
Alias: CVE-2017-7549
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20170814,repor...
Keywords: Security
Depends On: 1481447 1477414 1477415 1477416 1477417 1477418 1477419 1477420
Blocks: 1470192
TreeView+ depends on / blocked
 
Reported: 2017-08-02 01:44 UTC by Summer Long
Modified: 2019-06-08 22:12 UTC (History)
22 users (show)

(edit)
A flaw was found in instack-undercloud where pre-install and security policy scripts used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary files.
Clone Of:
(edit)
Last Closed: 2017-12-14 01:16:02 UTC


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2557 normal SHIPPED_LIVE Moderate: instack-undercloud security update 2017-08-30 17:47:40 UTC
Red Hat Product Errata RHSA-2017:2649 normal SHIPPED_LIVE Moderate: instack-undercloud security, bug fix, and enhancement update 2017-09-06 20:53:50 UTC
Red Hat Product Errata RHSA-2017:2687 normal SHIPPED_LIVE Moderate: instack-undercloud security update 2017-09-12 21:09:10 UTC
Red Hat Product Errata RHSA-2017:2693 normal SHIPPED_LIVE Moderate: instack-undercloud security update 2017-09-12 20:58:05 UTC
Red Hat Product Errata RHSA-2017:2726 normal SHIPPED_LIVE Moderate: instack-undercloud security, bug fix, and enhancement update 2017-09-14 01:46:06 UTC

Description Summer Long 2017-08-02 01:44:45 UTC
Description of problem:
* /usr/share/instack-undercloud/ipxe/post-install.d/86-selinux uses: /tmp/ipxe.mod
  to compile the selinux policy
* isolated-build/pre-install.d/00-disable-external-installs uses /tmp/yum-blacklist (all versions)

Comment 1 Summer Long 2017-08-02 01:44:56 UTC
Acknowledgments:

Name: Matthew Booth (Red Hat)

Comment 6 Summer Long 2017-08-14 22:02:20 UTC
Created instack-undercloud tracking bugs for this issue:

Affects: openstack-rdo [bug 1481447]

Comment 7 errata-xmlrpc 2017-08-30 13:48:30 UTC
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 9.0 (Mitaka) director

Via RHSA-2017:2557 https://access.redhat.com/errata/RHSA-2017:2557

Comment 8 errata-xmlrpc 2017-09-06 17:04:03 UTC
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)

Via RHSA-2017:2649 https://access.redhat.com/errata/RHSA-2017:2649

Comment 9 errata-xmlrpc 2017-09-12 16:58:49 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform director 7.0 for RHEL 7

Via RHSA-2017:2693 https://access.redhat.com/errata/RHSA-2017:2693

Comment 10 errata-xmlrpc 2017-09-12 17:11:22 UTC
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 8.0 (Liberty) director

Via RHSA-2017:2687 https://access.redhat.com/errata/RHSA-2017:2687

Comment 11 errata-xmlrpc 2017-09-13 21:47:59 UTC
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 11.0 (Ocata)

Via RHSA-2017:2726 https://access.redhat.com/errata/RHSA-2017:2726


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