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AUSCERT External Security Bulletin Redistribution
ESB-2020.0571
Multiple Vulnerabilities in IBM® Java SDK affect WebSphere
Application Server January 2020 CPU
19 February 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: WebSphere Application Server
WebSphere Application Server Liberty
Publisher: IBM
Operating System: AIX
HP-UX
IBM i
Linux variants
Mac OS
Solaris
Windows
z/OS
Impact/Access: Modify Arbitrary Files -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Existing Account
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-2593 CVE-2019-4732
Reference: ESB-2020.0470
ESB-2020.0412
Original Bulletin:
https://www.ibm.com/support/pages/node/1289194
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Security Bulletin: Multiple Vulnerabilities in IBM(R) Java SDK affect WebSphere
Application Server January 2020 CPU
Security Bulletin
Summary
There are multiple vulnerabilities in the IBM(R) SDK, Java(TM) Technology Edition
that is shipped with IBM WebSphere Application Server. These might affect some
configurations of IBM WebSphere Application Server Traditional, IBM WebSphere
Application Server Liberty and IBM WebSphere Application Server Hypervisor
Edition. These products have addressed the applicable CVEs. If you run your own
Java code using the IBM Java Runtime delivered with this product, you should
evaluate your code to determine whether the complete list of vulnerabilities is
applicable to your code. For a complete list of vulnerabilities, refer to the
link for "IBM Java SDK Security Bulletin" located in the References section for
more information. HP fixes are on a delayed schedule.
Vulnerability Details
CVEID: CVE-2020-2593
DESCRIPTION: An unspecified vulnerability in Java SE related to the Java SE
Networking component could allow an unauthenticated attacker to cause low
confidentiality impact, low integrity impact, and no availability impact.
CVSS Base score: 4.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
174541 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)
CVEID: CVE-2019-4732
DESCRIPTION: IBM SDK, Java Technology Edition Version 7.0.0.0 through
7.0.10.55, 7.1.0.0 through 7.1.4.55, and 8.0.0.0 through 8.0.6.0 could allow a
local authenticated attacker to execute arbitrary code on the system, caused by
DLL search order hijacking vulnerability in Microsoft Windows client. By
placing a specially-crafted file in a compromised folder, an attacker could
exploit this vulnerability to execute arbitrary code on the system. IBM X-Force
ID: 172618.
CVSS Base score: 7.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
172618 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H)
Affected Products and Versions
+------------------------------------+-------------------+
|Affected Product(s) |Version(s) |
+------------------------------------+-------------------+
|WebSphere Application Server |9.0 |
+------------------------------------+-------------------+
|WebSphere Application Server |8.5 |
+------------------------------------+-------------------+
|WebSphere Application Server Liberty|Continuous delivery|
+------------------------------------+-------------------+
Remediation/Fixes
Download and apply the interim fix APARs below, for your appropriate release
For the IBM Java SDK updates:
For WebSphere Application Server Liberty:
Upgrade to IBM SDK, Java Technology Edition Version 8 SR6 FP5, refer to IBM
Java SDKs for Liberty
For Version 9 WebSphere Application Server Traditional:
Update to the IBM SDK, Java Technology Edition, Version 8 Service Refresh 6 FP5
using the instructions in the IBM Knowledge Center Installing and updating IBM
SDK, Java Technology Edition on distributed environments then use the IBM
Installation Manager to access the online product repositories to install the
SDK or use IBM Installation Manager and access the packages from Fixcentral.
For V8.5.0.0 through 8.5.5.17 WebSphere Application Server Traditional and
WebSphere Application Server Hypervisor Edition:
For the IBM SDK, Java Technology Version that you use, upgrade to the minimal
fix pack level of WebSphere Application Server as noted in the interim fix
below then apply the interim fixes:
For IBM SDK Java Technology Edition Version 7
o Apply interim fix PH21196: Will upgrade you to IBM SDK, Java Technology
Edition, Version 7 Service Refresh 10 Fix Pack 60.
For IBM SDK Java Technology Edition Version 7R1
o Apply interim fix PH21195: Will upgrade you to IBM SDK, Java Technology
Edition, Version 7R1 Service Refresh 4 Fix Pack 60.
For IBM SDK Java Technology Edition Version 8 SR6 FP5
o Apply interim fix PH21193: Will upgrade you to IBM SDK, Java Technology
Edition, Version 8 Service Refresh 6 FP5.
o For environments that have been upgraded to use the new default IBM SDK
Version 8 bundled with WebSphere Application Server Fix Pack 8.5.5.11 or
later: Apply interim fix PH21194: Will upgrade you to IBM SDK, Java
Technology Edition, Version 8 Service Refresh 6 FP5.
OR
o Apply IBM Java SDK shipped with WebSphere Application Server Fix pack 18
(8.5.5.18) or later (targeted availability 3Q 2020).
For Application Client for WebSphere Application Server:
Follow instructions above for the WebSphere Application Server to download the
interim fix needed for your version of the Application Client.
Workarounds and Mitigations
None
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