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AUSCERT External Security Bulletin Redistribution
ESB-2018.2304
Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM
Rational ClearCase (CVE-2018-2633, CVE-2018-2603,
CVE-2018-2579, CVE-2018-2602, CVE-2018-2794, &
CVE-2018-2783)
10 August 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Rational ClearCase
Publisher: IBM
Operating System: AIX
HP-UX
Linux variants
Solaris
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Modify Arbitrary Files -- Existing Account
Denial of Service -- Remote/Unauthenticated
Read-only Data Access -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-2794 CVE-2018-2783 CVE-2018-2633
CVE-2018-2603 CVE-2018-2602 CVE-2018-2579
Reference: ESB-2018.2180
ESB-2018.2176
ESB-2018.2167
ESB-2018.2166
ESB-2018.2136
ESB-2018.2121
ESB-2018.2126.2
Original Bulletin:
https://www-01.ibm.com/support/docview.wss?uid=ibm10717207
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM
Rational ClearCase (CVE-2018-2633, CVE-2018-2603, CVE-2018-2579, CVE-2018-2602,
CVE-2018-2794, & CVE-2018-2783)
Document information
More support for: Rational ClearCase
Software version: 8.0, 8.0.0.1, 8.0.0.2, 8.0.0.3, 8.0.0.4, 8.0.0.5, 8.0.0.6, 8.0.0.7, 8.0.0.8, 8.0.0.9, 8.0.0.10, 8.0.0.11, 8.0.0.12, 8.0.0.13, 8.0.0.14, 8.0.0.15, 8.0.0.16, 8.0.0.17, 8.0.0.18, 8.0.0.19, 8.0.0.20, 8.0.0.21, 8.0.1, 8.0.1.1, 8.0.1.2, 8.0.1.3, 8.0.1.4, 8.0.1.5, 8.0.1.6, 8.0.1.7, 8.0.1.8, 8.0.1.9, 8.0.1.10, 8.0.1.11, 8.0.1.12, 8.0.1.13, 8.0.1.14, 8.0.1.15, 8.0.1.16, 8.0.1.17, 9.0, 9.0.0.1, 9.0.0.2, 9.0.0.3, 9.0.0.4, 9.0.0.5, 9.0.0.6, 9.0.1, 9.0.1.1, 9.0.1.2, 9.0.1.3
Operating system(s): AIX, HP-UX, Linux, Solaris, Windows
Reference #: 0717207
Modified date: 09 August 2018
Security Bulletin
Summary
There are multiple vulnerabilities in IBM(R) Runtime Environment Java(TM) Versions
6, 7, and 8, which are used by IBM Rational ClearCase. These issues were
disclosed as part of the IBM Java SDK updates in January 2018 and April 2018.
Vulnerability Details
CVEID: CVE-2018-2633
DESCRIPTION: An unspecified vulnerability related to the Java SE JNDI
component could allow an unauthenticated attacker to take control of the
system.
CVSS Base Score: 8.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
137885 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H)
CVEID: CVE-2018-2603
DESCRIPTION: An unspecified vulnerability related to the Java SE Libraries
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: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
137855 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2018-2579
DESCRIPTION: An unspecified vulnerability related to the Java SE Libraries
component could allow an unauthenticated attacker to obtain sensitive
information resulting in a low confidentiality impact using unknown attack
vectors.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
137833 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2018-2602
DESCRIPTION: An unspecified vulnerability related to the Java SE I18n
component could allow an unauthenticated attacker to cause low confidentiality
impact, low integrity impact, and low availability impact.
CVSS Base Score: 4.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
137854 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L)
CVEID: CVE-2018-2794
DESCRIPTION: An unspecified vulnerability related to the Java SE Security
component could allow an unauthenticated attacker to take control of the
system.
CVSS Base Score: 7.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
141950 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H)
CVEID: CVE-2018-2783
DESCRIPTION: An unspecified vulnerability related to the Java SE Security
component could allow an unauthenticated attacker to cause high confidentiality
impact, high integrity impact, and no availability impact.
CVSS Base Score: 7.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
141939 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
Affected Products and Versions
IBM Rational ClearCase versions 8 and 9 in the following components:
o CCRC WAN server/CM Server component, when configured to use SSL
o ClearCase remote client: CCRC/CTE GUI, rcleartool, and CMAPI clients
+---------------------------------------+-------------------------------------+
| ClearCase version | Status |
+---------------------------------------+-------------------------------------+
| 9.0.1 through 9.0.1.3 | Affected |
+---------------------------------------+-------------------------------------+
| 9.0 through 9.0.0.6 | Affected |
+---------------------------------------+-------------------------------------+
|8.0 through 8.0.0.21 |Affected |
+---------------------------------------+-------------------------------------+
|8.0.1 through 8.0.1.17 |Affected |
+---------------------------------------+-------------------------------------+
Remediation/Fixes
The solution is to install a fix that includes an updated Java(TM) Virtual Machine
with fixes for the issues, and to apply fixes for WebSphere Application Server
(WAS).
CCRC Client fixes
o Apply the relevant fixes as listed in the table below.
+------------------------+-------------------------------------------------------------------------+
| Affected Versions | Applying the fix |
+------------------------+-------------------------------------------------------------------------+
| 9.0.1 through 9.0.1.3 |Install Rational ClearCase Fix Pack 4 (9.0.1.4) for 9.0.1 |
| 9.0 through 9.0.0.6 | |
+------------------------+-------------------------------------------------------------------------+
|8.0.1 through 8.0.1.17 |Install Rational ClearCase Fix Pack 18 (8.0.1.18) for 8.0.1 |
|8.0 through 8.0.0.21 | |
+------------------------+-------------------------------------------------------------------------+
For 7.0, 7.1, 8.0, and earlier releases, IBM recommends upgrading to a
fixed, supported version/release/platform of the product.
Notes:
- If you use CCRC as an extension offering installed into an Eclipse
shell (one not provided as part of a ClearCase release), or you use
rcleartool or CMAPI using a Java(TM) Virtual Machine not supplied by IBM
as part of Rational ClearCase, you should update the Java(TM) Virtual
Machine that you use to include a fix for the above issues. Contact the
supplier of your Java(TM) Virtual Machine and/or the supplier of your
Eclipse shell.
CCRC WAN server fixes
+-------------------+---------------------------------------------------------+
| Affected Versions | Applying the fix |
+-------------------+---------------------------------------------------------+
|9.0.0.x |Apply the appropriate WebSphere Application Server fix |
|9.0.1.x |directly to your CCRC WAN server host. No |
|8.0.1.x |ClearCase-specific steps are necessary. |
|8.0.0.x | |
+-------------------+---------------------------------------------------------+
o
1. Determine the WAS version used by your CCRC WAN server. Navigate to the
CCRC profile directory (either the profile you specified when
installing ClearCase, or <ccase-home>/common/ccrcprofile ), then
execute the script: bin/versionInfo.sh (UNIX) or bin\versionInfo.bat
(Windows). The output includes a section "IBM WebSphere Application
Server". Make note of the version listed in this section.
2. Review the following WAS security bulletins:
Security Bulletin: Multiple vulnerabilities in IBM(R) Java SDK affects
WebSphere Application Server April 2018 CPU
and apply the latest available fix for the version of WAS used for CCRC
WAN server.
- Note: there may be newer security fixes for WebSphere Application
Server. Follow the link below (in the section "Get Notified about
Future Security Bulletins") to subscribe to WebSphere product support
alerts for additional Java SDK fixes.
Workarounds and Mitigations
None.
Important Note
IBM strongly suggests that all System z customers be subscribed to the System z
Security Portal to receive the latest critical System z security and integrity
service. If you are not subscribed, see the instructions on the System z
Security web site. Security and integrity APARs and associated fixes will be
posted to this portal. IBM suggests reviewing the CVSS scores and applying all
security or integrity fixes as soon as possible to minimize any potential risk.
Reference
Complete CVSS v3 Guide
On-line Calculator v3
IBM Java SDK January 2018 security bulletin
IBM Java SDK April 2018 security bulletin
Related Information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
9 August 2018: Originally published
*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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