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AUSCERT External Security Bulletin Redistribution
ESB-2020.1971
Remote code execution vulnerability in WebSphere Application
Server ND (CVE-2020-4448)
5 June 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: WebSphere Application Server ND
Publisher: IBM
Operating System: AIX
HP-UX
Linux variants
Windows
Solaris
z/OS
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-4448
Original Bulletin:
https://www.ibm.com/support/pages/node/6220336
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: Remote code execution vulnerability in WebSphere Application
Server ND (CVE-2020-4448)
Security Bulletin
Summary
There is a remote code execution vulnerability in WebSphere Application Server
Network Deployment. This has been addressed.
Vulnerability Details
CVEID: CVE-2020-4448
DESCRIPTION: IBM WebSphere Application Server Network Deployment 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: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
181228 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
+------------------------------------------+
|Affected Product(s) |Version(s)|
|-------------------------------+----------|
|WebSphere Application Server ND|9.0 |
|-------------------------------+----------|
|WebSphere Application Server ND|8.5 |
|-------------------------------+----------|
|WebSphere Virtual Enterprise |8.0 |
|-------------------------------+----------|
|WebSphere Virtual Enterprise |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 9.0.5.3:
Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH25216
- --OR--
Apply Fix Pack 9.0.5.4 or later (targeted availability 2Q2020).
For V8.5.0.0 through 8.5.5.17:
Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH25216
- --OR--
Apply Fix Pack 8.5.5.18 or later (targeted availability 3Q2020).
For WebSphere Virtual Enterprise Edition:
For V8.0:
Apply Interim Fix PH25216
For V7.0:
Apply Interim Fix PH25216
WebSphere Virtual Enterprise V7 and V8 are no longer in full support; IBM
recommends upgrading to a fixed, supported version/release/platform of the
product.
Workarounds and Mitigations
None
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References
Complete CVSS v3 Guide
On-line Calculator v3
Off
Related Information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
The vulnerability was reported to IBM by b0yd working with Trend Micro Zero Day
Initiative
Change History
14 June 2020: Initial Publication
*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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