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AUSCERT External Security Bulletin Redistribution
ESB-2020.0564
IBM WebSphere Application Vulnerabilities
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
Solaris
Windows
Mac OS
z/OS
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-12406 CVE-2019-4720
Reference: ESB-2019.4787
ESB-2019.4665
Original Bulletin:
https://www.ibm.com/support/pages/node/1288774
https://www.ibm.com/support/pages/node/1285372
Comment: This bulletin contains two (2) security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: Vulnerability in Apache CXF affects WebSphere Application Server (CVE-2019-12406)
Summary
There is a denial of service in the Apache CXF library used by WebSphere
Application Server. This has been addressed.
Vulnerability Details
CVEID: CVE-2019-12406
DESCRIPTION: Apache CXF before 3.3.4 and 3.2.11 does not restrict the number
of message attachments present in a given message. This leaves open the
possibility of a denial of service type attack, where a malicious user crafts a
message containing a very large number of message attachments. From the 3.3.4
and 3.2.11 releases, a default limit of 50 message attachments is enforced.
This is configurable via the message property "attachment-max-count".
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
170974 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Affected Products and Versions
+------------------------------------+-------------------+
|Affected Product(s) |Version(s) |
+------------------------------------+-------------------+
|WebSphere Application Server Liberty|17.0.0.3 - 20.0.0.1|
+------------------------------------+-------------------+
|WebSphere Application Server |9.0 |
+------------------------------------+-------------------+
Remediation/Fixes
The recommended solution is to apply the interim fix, Fix Pack or PTF
containing APAR PH19989 for each named product as soon as practical.
For WebSphere Application Server and WebSphere Application Server Hypervisor
Edition:
For Liberty 17.0.0.3-20.0.0.1 using jaxrs-2.0 or jaxrs-2.1 or jaxws-2.2
features:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH19989
- --OR--
. Apply Liberty Fix Pack 20.0.0.2 or later (targeted availability 1Q2020).
For V9.0.0.0 through 9.0.5.2:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH19989
- --OR--
. Apply Fix Pack 9.0.5.3 or later (targeted availability 1Q2020).
Additional interim fixes may be available and linked off the interim fix
download page.
Workarounds and Mitigations
None
- -------------------------------------------------------------------------------------
Security Bulletin: WebSphere Application Server is vulnerable to a denial of service (CVE-2019-4720)
Summary
There is a denial of service vulnerablility in WebSphere Application Server.
Vulnerability Details
CVEID: CVE-2019-4720
DESCRIPTION: IBM WebSphere Application Server is vulnerable to a denial of
service, caused by sending a specially-crafted request. A remote attacker could
exploit this vulnerability to cause the server to consume all available memory.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
172125 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
+------------------------------------+-------------------+
|Affected Product(s) |Version(s) |
+------------------------------------+-------------------+
|WebSphere Application Server |9.0 |
+------------------------------------+-------------------+
|WebSphere Application Server |7.0 |
+------------------------------------+-------------------+
|WebSphere Application Server |8.0 |
+------------------------------------+-------------------+
|WebSphere Application Server |8.5 |
+------------------------------------+-------------------+
|WebSphere Application Server Liberty|Continuous Delivery|
+------------------------------------+-------------------+
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 Liberty:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH19528
- --OR--
. Apply Fix Pack 20.0.0.2 or later (targeted availability 1Q2020).
For WebSphere Application Server traditional and WebSphere Application Server
Hypervisor Edition:
For V9.0.0.0 through 9.0.5.2:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH19528
- --OR--
. Apply Fix Pack 9.0.5.3 or later (targeted availability 1Q2020).
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 PH19528
- --OR--
. Apply Fix Pack 8.5.5.18 or later (targeted availability 3Q2020).
For V8.0.0.0 through 8.0.0.15:
. Upgrade to 8.0.0.15 and then apply Interim Fix PH19528
For V7.0.0.0 through 7.0.0.45:
. Upgrade to 7.0.0.45 and then apply Interim Fix PH19528
Additional interim fixes may be available and linked off the interim fix
download page.
WebSphere Application Server V7.0 and V8.0 are no longer in full support; IBM
recommends upgrading to a fixed, supported version/release/platform of the
product.
Workarounds and Mitigations
None
- --------------------------END INCLUDED TEXT--------------------
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