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AUSCERT External Security Bulletin Redistribution
ESB-2019.1747
Remote code execution in WebSphere Application Server ND (CVE-2019-4279)
16 May 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Application Server
Publisher: IBM
Operating System: AIX
HP-UX
IBM i
Solaris
Windows
z/OS
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-4279
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=ibm10883628
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Security Bulletin: Remote code execution in WebSphere Application Server ND
(CVE-2019-4279)
Security Bulletin
Document information
More support for: WebSphere Application Server
Software version: 8.5, 9.0
Operating system(s): AIX, HP-UX, IBM i, Solaris, Windows, z/OS
Reference #: 0883628
Modified date: 15 May 2019
Summary
There is a remote code execution vulnerability in WebSphere Application Server
Network Deployment.
Vulnerability Details
CVEID: CVE-2019-4279
DESCRIPTION: IBM WebSphere Application Server ND could allow a remote attacker
to execute arbitrary code on the system with a specially-crafted sequence of
serialized objects from untrusted sources.
CVSS Base Score: 9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
160445 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)
Affected Products and Versions
This vulnerability affects the following:
o WebSphere Application Server ND Version 9.0
o WebSphere Application Server ND Version 8.5
o WebSphere Virtual Enterprise Version 7.0
Remediation/Fixes
The recommended solution is to apply the interim fix, Fix Pack or PTF
containing the APAR for each named product as soon as practical.
For WebSphere Application Server ND traditional and WebSphere Application
Server ND Hypervisor Edition:
For V9.0.0.0 through 9.0.0.11:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH11655
- --OR--
. Apply Fix Pack 9.0.0.12 or later (targeted availability 2Q 2019).
For V8.5.0.0 through 8.5.5.15:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH11655
- --OR--
. Apply Fix Pack 8.5.5.16 or later (targeted availability 3Q2019).
For WebSphere Virtual Enterprise Edition:
For V7.0:
. Apply Interim Fix PH11655
WebSphere Virtual Enterprise V7 is no longer in full support; IBM recommends
upgrading to a fixed, supported version/release/platform of the product.
Get Notified about Future Security Bulletins
Subscribe to My Notifications to be notified of important product support
alerts like this.
Important Note
IBM strongly suggests that all System z customers be subscribed to the System z
Security Portal to receive the latest critical System z security and integrity
service. If you are not subscribed, see the instructions on the System z
Security web site. Security and integrity APARs and associated fixes will be
posted to this portal. IBM suggests reviewing the CVSS scores and applying all
security or integrity fixes as soon as possible to minimize any potential risk.
Reference
Complete CVSS v3 Guide
On-line Calculator v3
Related Information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
The vulnerability was reported to IBM by Ryan Wincey
Change History
15 May 2019: original document published
*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF
ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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