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AUSCERT External Security Bulletin Redistribution
ESB-2020.1023
Security Bulletin: Jan 2020 : Multiple vulnerabilities in
IBM Java Runtime affect CICS Transaction Gateway
23 March 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: CICS Transaction Gateway
Publisher: IBM
Operating System: AIX
HP-UX
Linux variants
Solaris
Windows
Impact/Access: Modify Arbitrary Files -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-2659 CVE-2020-2593 CVE-2020-2583
CVE-2019-4732
Reference: ESB-2020.0543
ESB-2020.0470
Original Bulletin:
https://www.ibm.com/support/pages/node/5967777
- --------------------------BEGIN INCLUDED TEXT--------------------
Jan 2020 : Multiple vulnerabilities in IBM Java Runtime affect CICS Transaction
Gateway
Security Bulletin
Summary
There are multiple vulnerabilities in IBM Runtime Environment Java Versions
7.0, 7.1 and 8.0 used by CICS Transaction Gateway. CICS Transaction Gateway has
addressed the applicable CVEs.
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-2020-2659
DESCRIPTION: An unspecified vulnerability in Java SE related to the Java SE
Networking component could allow an unauthenticated attacker to cause a denial
of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
174606 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2020-2583
DESCRIPTION: An unspecified vulnerability in Java SE related to the Java SE
Serialization component could allow an unauthenticated attacker to cause a
denial of service resulting in a low availability impact using unknown attack
vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
174531 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
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)|
+----------------------------+----------+
|IBM CICS Transaction Gateway|9.1 |
+----------------------------+----------+
|IBM CICS Transaction Gateway|9.2 |
+----------------------------+----------+
|IBM CICS Transaction Gateway|9.0 |
+----------------------------+----------+
|IBM CICS Transaction Gateway|8.1 |
+----------------------------+----------+
|IBM CICS Transaction Gateway|8.0 |
+----------------------------+----------+
Remediation/Fixes
If you run your own Java code using the IBM Java Runtime delivered with this
product, you should evaluate your code to determine whether additional Java
vulnerabilities are applicable to your code. For a complete list of
vulnerabilities, refer to the "IBM Java SDK Security Bulletin", located in the
Reference section for more information.
Otherwise, upgrade the JRE used by CICS TG Java client applications and/or the
CICS TG Gateway daemon. Updated JREs which can used with CICS TG Java client
applications and the Gateway daemon are made available on Fix Central.
+--------------+--------------+--------------------------------------------------------+-----------------------------------------------------------------+
| Product | VRMF | APAR | Remediation / First Fix |
+--------------+--------------+--------------------------------------------------------+-----------------------------------------------------------------+
| | |Updated JRE's have been made available on Fix Central as| |
|CICS | |Fix packs. | |
|Transaction |9.2.0.0 |AIX: 8.0.6-CICSTG-AIXpSeries32-JRE-SR5 |https://www-945.ibm.com/support/fixcentral/swg/identifyFixes |
|Gateway for |9.2.0.1 |xLinux: 8.0.6-CICSTG-Linuxx8632-JRE-SR5 |query.parent=ibm~Other%20software&query.product= |
|Multiplatforms|9.2.0.2 |pLinux: 8.0.6-CICSTG-LinuxpSeries32-JRE-SR5 |ibm~WebSphere~CICS%20Transaction%20Gateway%20for%20Multiplatforms|
| | |zLinux: 8.0.6-CICSTG-LinuxzSeries31-JRE-SR5 |&query.release=9.2.0&query.platform=All |
| | |Windows: 8.0.6-CICSTG-Windowsx8632-JRE-SR5 | |
+--------------+--------------+--------------------------------------------------------+-----------------------------------------------------------------+
| | |Updated JRE's have been made available on Fix Central as| |
| | |Fix packs. | |
|CICS |9.1.0.0 |Solaris: 7.0.10-CICSTG-SolarisSPARC32-JRE-SR60 |https://www-945.ibm.com/support/fixcentral/swg/identifyFixes |
|Transaction |9.1.0.1 |AIX: 7.1.4-CICSTG-AIXpSeries32-JRE-SR60 |query.parent=ibm~Other%20software&query.product= |
|Gateway for |9.1.0.2 |xLinux: 7.1.4-CICSTG-Linuxx8632-JRE-SR60 |ibm~WebSphere~CICS%20Transaction%20Gateway%20for%20Multiplatforms|
|Multiplatforms|9.1.0.3 |pLinux: 7.1.4-CICSTG-LinuxpSeries32-JRE-SR60 |&query.release=9.1.0&query.platform=All |
| | |zLinux: 7.1.4-CICSTG-LinuxzSeries31-JRE-SR60 | |
| | |Windows: 7.1.4-CICSTG-Windowsx8632-JRE-SR60 | |
+--------------+--------------+--------------------------------------------------------+-----------------------------------------------------------------+
| |9.0.0.0 | | |
| |9.0.0.1 | | |
| |9.0.0.2 | | |
| |9.0.0.3 | | |
| |9.0.0.4 | | |
| |8.1.0.0 |Updated JRE's have been made available on Fix Central as| |
| |8.1.0.1 |Fix packs. | |
|CICS |8.1.0.2 |Solaris: 7.0.10-CICSTG-SolarisSPARC32-JRE-SR60 |https://www-945.ibm.com/support/fixcentral/swg/identifyFixes |
|Transaction |8.1.0.3 |AIX: 7.0.10-CICSTG-AIXpSeries32-JRE-SR60 |query.parent=ibm~Other%20software&query.product= |
|Gateway for |8.1.0.4 |xLinux: 7.0.10-CICSTG-Linuxx8632-JRE-SR60 |ibm~WebSphere~CICS%20Transaction%20Gateway%20for%20Multiplatforms|
|Multiplatforms|8.1.0.5 |pLinux: 7.0.10-CICSTG-LinuxpSeries32-JRE-SR60 |&query.release |
| |8.0.0.0 |zLinux: 7.0.10-CICSTG-LinuxzSeries31-JRE-SR60 | |
| |8.0.0.1 |Windows: 7.0.10-CICSTG-Windowsx8632-JRE-SR60 | |
| |8.0.0.2 | | |
| |8.0.0.3 | | |
| |8.0.0.4 | | |
| |8.0.0.5 | | |
| |8.0.0.6 | | |
+--------------+--------------+--------------------------------------------------------+-----------------------------------------------------------------+
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
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