SecurityTracker.com
    Home    |    View Topics    |    Search    |    Contact Us    |   

SecurityTracker
Archives


 


Category:   Application (Generic)  >   Red Hat Enterprise Virtualization Vendors:   Red Hat
Red Hat Enterprise Virtualization Bugs in Ansible Component Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1041396
SecurityTracker URL:  http://securitytracker.com/id/1041396
CVE Reference:   CVE-2018-10874, CVE-2018-10875   (Links to External Site)
Date:  Jul 31 2018
Impact:   Execution of arbitrary code via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4
Description:   Two vulnerabilities were reported in Red Hat Enterprise Virtualization. A local user can obtain elevated privileges on the target system.

The system reads the 'ansible.cfg' file from the current working directory when running an ad-hoc command [CVE-2018-10874]. A local user can modify the file to reference arbitrary plugin or module paths to cause the system to execute arbitrary code from those paths.

The system loads inventory variables from the current working directory when running an ad-hoc command [CVE-2018-10875]. A local user can modify the variables to cause the system to execute arbitrary code.

Michael Scherer (OSAS) and Brian Coca (Red Hat) reported these vulnerabilities.

Impact:   A local user can obtain elevated privileges on the target system.
Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://access.redhat.com/errata/RHSA-2018:2321

Vendor URL:  access.redhat.com/errata/RHSA-2018:2321 (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  7

Message History:   None.


 Source Message Contents

Subject:  [RHSA-2018:2321-01] Moderate: Red Hat Virtualization security, bug fix, and enhancement update

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: Red Hat Virtualization security, bug fix, and enhancement update
Advisory ID:       RHSA-2018:2321-01
Product:           Red Hat Virtualization
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:2321
Issue date:        2018-07-31
CVE Names:         CVE-2018-10874 CVE-2018-10875 
=====================================================================

1. Summary:

An update for redhat-virtualization-host is now available for Red Hat
Virtualization 4 for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

RHEL 7-based RHEV-H for RHEV 4 (build requirements) - noarch, x86_64
Red Hat Virtualization 4 Hypervisor for RHEL 7 - noarch

3. Description:

The redhat-virtualization-host packages provide the Red Hat Virtualization
Host. These packages include redhat-release-virtualization-host,
ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are
installed using a special build of Red Hat Enterprise Linux with only the
packages required to host virtual machines. RHVH features a Cockpit user
interface for monitoring the host's resources and performing administrative
tasks.

The ovirt-node-ng packages provide the Red Hat Virtualization Host. These
packages include redhat-release-virtualization-host, ovirt-node, and
rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a
special build of Red Hat Enterprise Linux with only the packages required
to host virtual machines. RHVH features a Cockpit user interface for
monitoring the host's resources and performing administrative tasks.

The following packages have been upgraded to a later upstream version:
imgbased (1.0.22), redhat-release-virtualization-host (4.2),
redhat-virtualization-host (4.2). (BZ#1596545, BZ#1607722, BZ#1607723)

Security Fix(es):

* ansible: Inventory variables are loaded from current working directory
when running ad-hoc command that can lead to code execution
(CVE-2018-10874)

* ansible: ansible.cfg is being read from current working directory
allowing possible code execution (CVE-2018-10875)

For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.

Red Hat would like to thank Michael Scherer (OSAS) for reporting
CVE-2018-10874. The CVE-2018-10875 issue was discovered by Brian Coca (Red
Hat).

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1596528 - CVE-2018-10874 ansible: Inventory variables are loaded from current working directory when running ad-hoc command that can lead to code execution
1596533 - CVE-2018-10875 ansible: ansible.cfg is being read from current working directory allowing possible code execution
1596545 - Upgrade imgbased to 1.0.21

6. Package List:

Red Hat Virtualization 4 Hypervisor for RHEL 7:

Source:
redhat-virtualization-host-4.2-20180724.0.el7_5.src.rpm

noarch:
redhat-virtualization-host-image-update-4.2-20180724.0.el7_5.noarch.rpm

RHEL 7-based RHEV-H for RHEV 4 (build requirements):

Source:
imgbased-1.0.22-1.el7ev.src.rpm
redhat-release-virtualization-host-4.2-5.0.el7.src.rpm

noarch:
imgbased-1.0.22-1.el7ev.noarch.rpm
python-imgbased-1.0.22-1.el7ev.noarch.rpm
redhat-virtualization-host-image-update-placeholder-4.2-5.0.el7.noarch.rpm

x86_64:
redhat-release-virtualization-host-4.2-5.0.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-10874
https://access.redhat.com/security/cve/CVE-2018-10875
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1

iQIVAwUBW2CiGdzjgjWX9erEAQipxw/9F5fq+kVd43rUN58qOl0fEPTO2lAyS2cT
tQ4GuB+Ra+BcqQXIfCnJpHn1//MwcEL4GZHm/YJ3trHb1GWRQmGCts+VQnOWUk+J
LeAax7nIOU/Bs2XSY3fliXCX3KdbNyxtbmVetjGI5YoLNA/o8a1R+COKpf2VZ6ck
qjHALWBIjKr2ODdVMs7looOSENpdkHpD4yz2hFNGDbVbyUYnatgLftDaZfXFX5e8
eD5Cpr8f/3bRHa0S3Xbq5LsGMIzeUmoB7VmLMUDOYJ0AY0km2+/HFdYWCHwlwlkE
ji3Ro9auZrO9la6BT0WzfAZayQMA6FEd2hD16HgYPSKonyQEutcVh+u/gsfhBEyf
IbfiK2idnqmrFBue781OfYfGr4Y3n3lWVpvpzZI//Fjj8hdV2+aEgVeE8sVM29r4
GOjvmyuRtGqBVxMb2Uhekin4qqaDWkHqQPNr3MqUnzrV03CK1zpUI7veV1y+boqq
TSXbgH4JIAZhpI1+jlAYs1EHhy3vvndxBVTqOBkGVVOB4KfBayEVY6Ir20DJLML2
syZfRQhP90H37pkXS7uVE8GJHMf5dRLphl+GNWL01FjQBegXyBFPMl+Eem4IimLa
ufIS/TT89Lr6Zgt0bfkHb0HvCAwyMIg10YjEkWD/h4jeZgLL1CIF9Qnv6z9rFadr
Gzq54pN7Lv0=
=kG3B
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce
 
 


Go to the Top of This SecurityTracker Archive Page





Home   |    View Topics   |    Search   |    Contact Us

This web site uses cookies for web analytics. Learn More

Copyright 2019, SecurityGlobal.net LLC