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AUSCERT External Security Bulletin Redistribution
ESB-2020.1162
Db2 Query Management Facility is vulnerable to IBM SDK, Java
Technology Edition Quarterly CPU & Oracle Jan 2020
2 April 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: DB2 Query Management Facility
Publisher: IBM
Operating System: Linux variants
Mac OS
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Modify Arbitrary Files -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Read-only Data Access -- Remote/Unauthenticated
Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-2659 CVE-2020-2604 CVE-2020-2593
CVE-2020-2583 CVE-2019-4732
Reference: ASB-2020.0028
ESB-2020.1023
ESB-2020.1019
ESB-2020.1009
ESB-2020.0891
Original Bulletin:
https://www.ibm.com/support/pages/node/6117052
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Security Bulletin: Db2 Query Management Facility is vulnerable to IBM SDK, Java
Technology Edition Quarterly CPU & Oracle Jan 2020 (CVE-2019-4732)
Security Bulletin
Document number: 6117052
Summary
IBM SDK, Java Technology Edition Quarterly CPU - Jan 2020 - Includes Oracle Jan
2020 CPU minus CVE-2020-2601, CVE-2020-2654, and CVE-2020-2590
Vulnerability Details
All applicable Java SE CVEs published by Oracle as part of their January 2020
Critical Patch Update, except for CVE-2020-2601, CVE-2020-2654, and
CVE-2020-2590, plus one additional vulnerability. See attached document for
full details.
CVE-2020-2601, CVE-2020-2654, and CVE-2020-2590 will be handled in separate
Advisories.
Please keep an eye on the January CPU PSIRT forum thread for updates:
https://w3-connections.ibm.com/forums/html/threadTopic?id=
93e9b0d5-8e08-4cc3-a39e-93cb6d2a20c6
Vulnerabilities
CVE-2020-2604, CVE-2020-2593, CVE-2020-2659, CVE-2020-2583, CVE-2019-4732
CVEID: CVE-2020-2604
Description: Vulnerability in the Java SE, Java SE Embedded product of Oracle
Java SE (component: Serialization). Supported versions that are affected are
Java SE: 7u241, 8u231, 11.0.5 and 13.0.1; Java SE Embedded: 8u231. Difficult to
exploit vulnerability allows unauthenticated attacker with network access via
multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks
of this vulnerability can result in takeover of Java SE, Java SE Embedded.
Note: This vulnerability applies to Java deployments, typically in clients
running sandboxed Java Web Start applications or sandboxed Java applets (in
Java SE 8), that load and run untrusted code (e.g., code that comes from the
internet) and rely on the Java sandbox for security. This vulnerability can
also be exploited by using APIs in the specified Component, e.g., through a web
service which supplies data to the APIs. CVSS v3.0 Base Score 8.1
(Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
CVSS Base Score: 8.1
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/
174551 for more information
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Platforms:
CVEID: CVE-2020-2593
Description: Vulnerability in the Java SE, Java SE Embedded product of Oracle
Java SE (component: Networking). Supported versions that are affected are Java
SE: 7u241, 8u231, 11.0.5 and 13.0.1; Java SE Embedded: 8u231. Difficult to
exploit vulnerability allows unauthenticated attacker with network access via
multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks
of this vulnerability can result in unauthorized update, insert or delete
access to some of Java SE, Java SE Embedded accessible data as well as
unauthorized read access to a subset of Java SE, Java SE Embedded accessible
data. Note: This vulnerability applies to Java deployments, typically in
clients running sandboxed Java Web Start applications or sandboxed Java applets
(in Java SE 8), that load and run untrusted code (e.g., code that comes from
the internet) and rely on the Java sandbox for security. This vulnerability can
also be exploited by using APIs in the specified Component, e.g., through a web
service which supplies data to the APIs. CVSS 3.0 Base Score 4.8
(Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/
UI:N/S:U/C:L/I:L/A:N).
CVSS Base Score: 4.8
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/
174541 for more information
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)
Affected Platforms:
CVEID: CVE-2020-2659
Description: Vulnerability in the Java SE, Java SE Embedded product of Oracle
Java SE (component: Networking). Supported versions that are affected are Java
SE: 7u241 and 8u231; Java SE Embedded: 8u231. Difficult to exploit
vulnerability allows unauthenticated attacker with network access via multiple
protocols to compromise Java SE, Java SE Embedded. Successful attacks of this
vulnerability can result in unauthorized ability to cause a partial denial of
service (partial DOS) of Java SE, Java SE Embedded. Note: This vulnerability
applies to Java deployments, typically in clients running sandboxed Java Web
Start applications or sandboxed Java applets (in Java SE 8), that load and run
untrusted code (e.g., code that comes from the internet) and rely on the Java
sandbox for security. This vulnerability can also be exploited by using APIs in
the specified Component, e.g., through a web service which supplies data to the
APIs. CVSS 3.0 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.0/
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).
CVSS Base Score: 3.7
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/
174606 for more information
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
Affected Platforms:
CVEID: CVE-2020-2583
Description: Vulnerability in the Java SE, Java SE Embedded product of Oracle
Java SE (component: Serialization). Supported versions that are affected are
Java SE: 7u241, 8u231, 11.0.5 and 13.0.1; Java SE Embedded: 8u231. Difficult to
exploit vulnerability allows unauthenticated attacker with network access via
multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks
of this vulnerability can result in unauthorized ability to cause a partial
denial of service (partial DOS) of Java SE, Java SE Embedded. Note: This
vulnerability applies to Java deployments, typically in clients running
sandboxed Java Web Start applications or sandboxed Java applets (in Java SE 8),
that load and run untrusted code (e.g., code that comes from the internet) and
rely on the Java sandbox for security. This vulnerability can also be exploited
by using APIs in the specified Component, e.g., through a web service which
supplies data to the APIs. CVSS 3.0 Base Score 3.7 (Availability impacts). CVSS
Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).
CVSS Base Score: 3.7
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/
174531 for more information
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
Affected Platforms:
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: https://exchange.xforce.ibmcloud.com/vulnerabilities/
172618 for more information
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H)
Affected Platforms: IBM Java 7.0.0.0, IBM Java 7.0.10.55, IBM Java 7.1.0.0, IBM
Java 7.1.4.55, IBM Java 8.0.0.0, IBM Java 8.0.6.0
Affected Products and Versions
Db2 Query Management Facility for z/OS 12.2;
Db2 Query Management Facility for z/OS 12.1;
Db2 Query Management Facility for z/OS 11.2.1;
Db2 Query Management Facility for z/OS 11.2;
Db2 Query Management Facility for z/OS 11.1;
Query Management Facility Classic Edition 11.1;
Query Management Facility Enterprise Edition 11.1;
Remediation/Fixes
See "Workarounds and Mitigations".
Workarounds and Mitigations
Use the following instructions to download the latest JRE version from the IBM
Java download portal and replace it with the JRE you are currently invoking.
Steps to update Java - QMF for Workstation:
1. Download JRE 8.0.6.5 version from IBM Java download portal.
2. Close QMF for workstation , if any instance is running.
3. Copy 8.0.6.5 JRE version to C:\Program Files\IBM\Db2 Query Management
Facility\QMF for Workstation\jre.
4. Start application
Steps to update Java - QMF Vision:
1. Go to: https://adoptopenjdk.net/releases.html
2. Download Open JDK 8(LTS) and extract the files to a temporary location.
3. Stop the following Windows services:
- IBM QMF Vision Indexing Service (this will also stop IBM QMF Vision Web
Service due to dependencies)
- QMFServerLite
4. Delete
C:\Program Files\IBM\DB2 Query Management Facility\QMF Vision\
elasticsearch\java\jre1.8.0_131.
Note: The folder name would be ?jre? in case security bulletin reference
# 0880785 is already applied.
5. Copy content of downloaded jre from the temporary location (step # 2) to
C:\Program Files\IBM\DB2 Query Management Facility\QMF Vision\
elasticsearch\java.
6. Rename folder jre1.8.0_131 to jre.
Note: If the folder in the java folder is already renamed to ?jre? via
the security bulletin reference #
0880785, then steps 7 through 12 are not required. You can directly go to
step 13 and start the relevant
services,
Security bulletin # 0880785 link - https://www-01.ibm.com/support/
docview.wss?uid=ibm10880785
7. Under C:\Program Files\IBM\DB2 Query Management Facility\QMF Vision\, edit
the following 6 files:
elasticsearch/bin/install.bat
elasticsearch/bin/start.bat
elasticsearch/bin/stop.bat
elasticsearch/bin/uninstall.bat
qmfserver/bat/setenv.bat
qmfserver/conf/wrapper.conf
For each file, replace "jre1.8.0_131" with "jre", and save.
8. Open a Windows Command window in Administrator mode and Change directory to
elasticsearch/bin.
9. Execute:
uninstall.bat
install.bat
10. Change directory to qmfserver/bat.
11 Execute:
uninstallService.bat
installService.bat.
12. In the Windows Services console, edit "IBM QMF Vision Indexing Service" to
change startup type from
"Manual" to "Automatic".
13. Restart Windows Services:
- IBM QMF Vision Indexing Service
- IBM QMF Vision Web Service
- QMFServerLite
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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
Change History
04 Mar 2020: Initial Publication
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