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Category:   Application (Generic)  >   Red Hat Enterprise Virtualization Vendors:   Red Hat
(Red Hat Issues Fix for Red Hat Enterprise Virtualization) Apache Archiva Bugs in XML-RPC Library Let Remote Users Conduct Server-Side Request Forgery Attacks, Deny Service, and Potentially Execute Arbitrary Code
SecurityTracker Alert ID:  1041421
SecurityTracker URL:  http://securitytracker.com/id/1041421
CVE Reference:   CVE-2016-5003   (Links to External Site)
Date:  Aug 6 2018
Impact:   Denial of service via network, Execution of arbitrary code via network, Host/resource access via network, Modification of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Several vulnerabilities were reported in Apache Archiva. A remote user can conduct server-side request forgery attacks. A remote user can cause the target service to crash. A remote user may be able to execute arbitrary code on the target system. Red Hat Enterprise Virtualization is affected.

A remote user can submit a specially crafted XML DTD that, when processed by the target library, will cause the target server to connect to arbitrary ports on arbitrary hosts on the target network [CVE-2016-5002].

A remote user can send specially crafted data to deserialize data to potentially execute arbitrary code on the target system [CVE-2016-5003].

A remote user can send a specially crafted Content-Encoding header to consume excessive resources and cause denial of service conditions on the target application server [CVE-2016-5004].

The vulnerabilities reside in the ws-xmlrpc library component.

Demonstration exploit code is available at:

https://github.com/0ang3el/unsafe-xmlrpc

The original advisory is available at:

https://0ang3el.blogspot.ru/2016/07/beware-of-ws-xmlrpc-library-in-your.html

0ang3el reported this vulnerability.

Impact:   A remote user can cause the target server to connect to arbitrary ports on arbitrary hosts on the target network.

A remote user can consume excessive resources and cause denial of service conditions on the target application server.

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

Solution:   Red Hat has issued a fix for CVE-2016-5003 for Red Hat Enterprise Virtualization.

The Red Hat advisory is available at:

https://access.redhat.com/errata/RHSA-2018:2317

Vendor URL:  access.redhat.com/errata/RHSA-2018:2317 (Links to External Site)
Cause:   Resource error
Underlying OS:  Linux (Red Hat Enterprise)

Message History:   This archive entry is a follow-up to the message listed below.
Jul 13 2016 Apache Archiva Bugs in XML-RPC Library Let Remote Users Conduct Server-Side Request Forgery Attacks, Deny Service, and Potentially Execute Arbitrary Code



 Source Message Contents

Subject:  [RHSA-2018:2317-01] Moderate: xmlrpc security update

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

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

Synopsis:          Moderate: xmlrpc security update
Advisory ID:       RHSA-2018:2317-01
Product:           Red Hat Virtualization
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:2317
Issue date:        2018-07-31
CVE Names:         CVE-2016-5003 
=====================================================================

1. Summary:

An update for xmlrpc 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:

Tools for RHV Engine - noarch

3. Description:

XML-RPC is a way to make remote procedure calls over the Internet. It
converts procedure calls into XML documents, sends them to a remote server
using the HTTP protocol, and gets back the response as XML.

The following packages have been upgraded to a later upstream version:
xmlrpc (3.1.3). (BZ#1594618)

Security Fix(es):

* xmlrpc: Deserialization of untrusted Java object through
<ex:serializable> tag (CVE-2016-5003)

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.

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/):

1508123 - CVE-2016-5003 xmlrpc: Deserialization of untrusted Java object through <ex:serializable> tag

6. Package List:

Tools for RHV Engine:

Source:
xmlrpc-3.1.3-9.el7_5.src.rpm

noarch:
xmlrpc-client-3.1.3-9.el7_5.noarch.rpm
xmlrpc-common-3.1.3-9.el7_5.noarch.rpm
xmlrpc-javadoc-3.1.3-9.el7_5.noarch.rpm
xmlrpc-server-3.1.3-9.el7_5.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-2016-5003
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.
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