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Category:   Application (Generic)  >   Red Hat Enterprise Virtualization Vendors:   Red Hat
Red Hat Enterprise Virtualization Multiple Flaws Let Remote Users Execute Arbitrary Code and Local Users Determine Passwords and Gain Elevated Privileges
SecurityTracker Alert ID:  1039744
SecurityTracker URL:  http://securitytracker.com/id/1039744
CVE Reference:   CVE-2014-9970, CVE-2017-7525, CVE-2017-7536   (Links to External Site)
Date:  Nov 7 2017
Impact:   Disclosure of authentication information, Execution of arbitrary code via network, User access via local system, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.X
Description:   Several vulnerabilities were reported in Red Hat Enterprise Virtualization. A local user can obtain elevated privileges on the target system. A local user can determine passwords on the target system. A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted data to trigger a deserialization error in the jackson-databind component to execute arbitrary code on the target system [CVE-2017-7525]. The code will run with the privileges of the target service. The readValue() method of the ObjectMapper is affected.

A local user can conduct a timing attack on password hash comparison in the Jasypt component to determine passwords on the target system [CVE-2014-9970].

On systems with the security manager's reflective permissions granted to
Hibernate Validator, a local user can invoke private members of the class via ConstraintViolation#getInvalidValue() to gain elevated privileges [CVE-2017-7536].

Liao Xinxi (NSFOCUS) reported one vulnerability. Gunnar Morling (Red Hat) reported one vulnerability.

Impact:   A local user can obtain elevated privileges on the target system.

A local user can determine passwords on the target system.

A remote user can execute arbitrary code on the target system.

Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://access.redhat.com/errata/RHSA-2017:3141

Vendor URL:  access.redhat.com/errata/RHSA-2017:3141 (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  Linux (Red Hat Enterprise)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Feb 12 2018 (Red Hat Issues Fix for Red Hat JBoss Data Grid) Red Hat Enterprise Virtualization Multiple Flaws Let Remote Users Execute Arbitrary Code and Local Users Determine Passwords and Gain Elevated Privileges
Red Hat has issued a fix for Red Hat JBoss Data Grid.



 Source Message Contents

Subject:  [RHSA-2017:3141-01] Important: rhvm-appliance security, bug fix, and enhancement update

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

Synopsis:          Important: rhvm-appliance security, bug fix, and enhancement update
Advisory ID:       RHSA-2017:3141-01
Product:           Red Hat Virtualization
Advisory URL:      https://access.redhat.com/errata/RHSA-2017:3141
Issue date:        2017-11-07
CVE Names:         CVE-2014-9970 CVE-2017-7525 CVE-2017-7536 
=====================================================================

1. Summary:

An update for rhvm-appliance is now available for RHEV 4.X RHEV-H and
Agents for RHEL-7.

Red Hat Product Security has rated this update as having a security impact
of Important. 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:

Image Updates for RHV-H - noarch
Management Agent for RHEL 7 Hosts - noarch

3. Description:

The RHV-M Virtual Appliance automates the process of installing and
configuring the Red Hat Virtualization Manager. The appliance is available
to download as an OVA file from the Customer Portal.

The following packages have been upgraded to a later upstream version:
rhvm-appliance (20171019.0). (BZ#1496586)

Security Fix(es):

* A deserialization flaw was discovered in the jackson-databind which could
allow an unauthenticated user to perform code execution by sending the
maliciously crafted input to the readValue method of the ObjectMapper.
(CVE-2017-7525)

* A vulnerability was found in Jasypt that would allow an attacker to
perform a timing attack on password hash comparison. (CVE-2014-9970)

* It was found that when the security manager's reflective permissions,
which allows it to access the private members of the class, are granted to
Hibernate Validator, a potential privilege escalation can occur. By
allowing the calling code to access those private members without the
permission an attacker may be able to validate an invalid instance and
access the private member value via ConstraintViolation#getInvalidValue().
(CVE-2017-7536)

Red Hat would like to thank Liao Xinxi (NSFOCUS) for reporting
CVE-2017-7525. The CVE-2017-7536 issue was discovered by Gunnar Morling
(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/):

1455566 - CVE-2014-9970 jasypt: Vulnerable to timing attack against the password hash comparison
1462702 - CVE-2017-7525 jackson-databind: Deserialization vulnerability via readValue method of ObjectMapper
1465573 - CVE-2017-7536 hibernate-validator: Privilege escalation when running under the security manager
1496586 - [Rebase] Tracker for rhvm-appliance 4.1.7

6. Package List:

Management Agent for RHEL 7 Hosts:

Source:
rhvm-appliance-4.1.20171102.0-1.el7.src.rpm

noarch:
rhvm-appliance-4.1.20171102.0-1.el7.noarch.rpm

Image Updates for RHV-H:

Source:
rhvm-appliance-4.1.20171102.0-1.el7.src.rpm

noarch:
rhvm-appliance-4.1.20171102.0-1.el7.noarch.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-2014-9970
https://access.redhat.com/security/cve/CVE-2017-7525
https://access.redhat.com/security/cve/CVE-2017-7536
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2017 Red Hat, Inc.
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https://www.redhat.com/mailman/listinfo/rhsa-announce
 
 


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