ESB-2018.0610 - [Win][UNIX/Linux] IBM Rational ClearCase: Multiple vulnerabilities 2018-03-02

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0610
           IBM Rational ClearCase patches cURL and Java Runtime
                               2 March 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM Rational ClearCase
Publisher:         IBM
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Access Privileged Data          -- Remote/Unauthenticated      
                   Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote/Unauthenticated      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-1000257 CVE-2017-1000254 CVE-2017-1000100
                   CVE-2017-10116 CVE-2017-10115 

Reference:         ESB-2017.2046
                   ESB-2017.2542.2

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22008567
   http://www.ibm.com/support/docview.wss?uid=swg22007280

Comment: This bulletin contains two (2) IBM security advisories.

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: Vulnerabilities in cURL component shipped with IBM Rational
ClearCase (CVE-2017-1000100, CVE-2017-1000254, CVE-2017-1000257)

Document information

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, 9.0,
9.0.0.1, 9.0.0.2, 9.0.0.3, 9.0.0.4, 9.0.0.5, 9.0.1, 9.0.1.1

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows
Reference #: 2008567
Modified date: 01 March 2018

Summary

IBM Rational ClearCase is affected by cURL/libcURL vulnerabilities.

Vulnerability Details

CVEID: CVE-2017-1000100
DESCRIPTION: cURL could allow a remote attacker to obtain sensitive
information, caused by a TFTP URL processing error when doing a TFTP transfer.
By redirecting a libcurl-using client request to a TFTP URL containing an
overly long file name, an attacker could exploit this vulnerability to send
private memory contents and obtain sensitive information.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
130190 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:N/A:N)

CVEID: CVE-2017-1000254
DESCRIPTION: libcurl is vulnerable to a denial of service, caused by a buffer
overread in the string parser. By sending a specially-crafted response to a PWD
command, a remote attacker could exploit this vulnerability to cause the
application to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/
133027 for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2017-1000257
DESCRIPTION: cURL is vulnerable to a denial of service, caused by a buffer
overread in the IMAP handler. By using a specially crafted IMAP FETCH response,
a remote attacker could exploit this vulnerability to cause the application to
crash or obtain sensitive information.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
134033 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)

Affected Products and Versions

The cURL component is used in the CMI integration, the OSLC-based ClearQuest
integration, and in the automatic view client.


+-----------------------------------------------------------------------------+
|       ClearCase client version        |               Status                |
|---------------------------------------+-------------------------------------|
|         9.0.1 through 9.0.1.1         |              Affected               |
|---------------------------------------+-------------------------------------|
|          9.0 through 9.0.0.5          |              Affected               |
|---------------------------------------+-------------------------------------|
|        8.0.1 through 8.0.1.15         |              Affected               |
|---------------------------------------+-------------------------------------|
|         8.0 through 8.0.0.21          |              Affected               |
+-----------------------------------------------------------------------------+

Remediation/Fixes

The solution is to upgrade to a fix pack of ClearCase that disables the
vulnerable configuration in the cURL component.


+-----------------------------------------------------------------------------+
| Affected Versions |                    Applying the fix                     |
|-------------------+---------------------------------------------------------|
|   9.0.1 through   |Install Rational ClearCase Fix Pack 2 (9.0.1.2) for 9.0.1|
|      9.0.1.1      |                                                         |
|-------------------+---------------------------------------------------------|
|9.0 through 9.0.0.5|Install Rational ClearCase Fix Pack 6 (9.0.0.6) for 9.0  |
|-------------------+---------------------------------------------------------|
|   8.0.1 through   |Install Rational ClearCase Fix Pack 16 (8.0.1.16) for    |
|     8.0.1.15      |8.0.1                                                    |
|    8.0 through    |                                                         |
|     8.0.0.21      |                                                         |
+-----------------------------------------------------------------------------+
For 7.0, 7.1, and earlier releases, IBM recommends upgrading to a fixed,
supported version/release/platform of the product.

Workarounds and Mitigations

None

Change History

18 December 2017: Original copy published
1 March 2018: Fixed links to download packages

*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.

- -------------------------------------------------------------------------------

Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM
Rational ClearCase (CVE-2017-10115, CVE-2017-10116)

CVE-2017-10115; CVE-2017-10116

Document information

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, 9.0,
9.0.0.1, 9.0.0.2, 9.0.0.3, 9.0.0.4, 9.0.0.5, 9.0.1, 9.0.1.1

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows
Reference #: 2007280
Modified date: 01 March 2018

Summary

There are multiple vulnerabilities in IBM Runtime Environment Java 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 July 2017.

Vulnerability Details

CVEID: CVE-2017-10115
DESCRIPTION: An unspecified vulnerability related to the Java SE, Java SE
Embedded, JRockit JCE component could allow an unauthenticated attacker to
obtain sensitive information resulting in a high confidentiality impact using
unknown attack vectors.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
128876 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2017-10116
DESCRIPTION: An unspecified vulnerability related to the Java SE, Java SE
Embedded, JRockit Security 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/
128877 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)

Affected Products and Versions

IBM Rational ClearCase, versions 8.0 and 9.0 in the following components:

  * CCRC WAN server/CM Server component, when configured to use SSL
  * ClearCase remote client: CCRC/CTE GUI, rcleartool, and CMAPI clients, when
    using SSL to access a CCRC WAN Server/CM Server

+-----------------------------------------------------------------------------+
|           ClearCase version           |               Status                |
|---------------------------------------+-------------------------------------|
|            9.0.1, 9.0.1.1             |              Affected               |
|---------------------------------------+-------------------------------------|
|          9.0 through 9.0.0.5          |              Affected               |
|---------------------------------------+-------------------------------------|
|        8.0.1 through 8.0.1.15         |              Affected               |
|---------------------------------------+-------------------------------------|
|         8.0 through 8.0.0.21          |              Affected               |
+-----------------------------------------------------------------------------+

Remediation/Fixes

The solution is to install a fix that includes an updated Java Virtual Machine
with fixes for the issues, and to apply fixes for WebSphere Application Server
(WAS).

CCRC Client fixes

    Apply the relevant fixes as listed in the table below.

    +-------------------------------------------------------------------------+
    |Affected Versions |                   Applying the fix                   |
    |------------------+------------------------------------------------------|
    |  9.0.1 through   |Install Rational ClearCase Fix Pack 2 (9.0.1.2) for   |
    |     9.0.1.1      |9.0.1                                                 |
    |------------------+------------------------------------------------------|
    |   9.0 through    |Install Rational ClearCase Fix Pack 6 (9.0.0.6) for   |
    |     9.0.0.5      |9.0                                                   |
    |------------------+------------------------------------------------------|
    |  8.0.1 through   |Install Rational ClearCase Fix Pack 16 (8.0.1.16) for |
    |     8.0.1.15     |8.0.1                                                 |
    |   8.0 through    |                                                      |
    |     8.0.0.21     |                                                      |
    +-------------------------------------------------------------------------+
    For 7.0, 7.1, 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 Virtual Machine not supplied by IBM
        as part of Rational ClearCase, you should update the Java Virtual
        Machine that you use to include a fix for the above issues. Contact the
        supplier of your Java Virtual Machine and/or the supplier of your
        Eclipse shell.

CCRC WAN server fixes

     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 bulletin:

        Security Bulletin: Multiple vulnerabilities in IBM Java SDK affects
        WebSphere Application Server July 2017 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.
    +-------------------------------------------------------------------------+
    |Affected Versions |                   Applying the fix                   |
    |------------------+------------------------------------------------------|
    |8.0.0.x           |Apply the appropriate WebSphere Application Server fix|
    |8.0.1.x           |directly to your CCRC WAN server host. No             |
    |9.0.0.x           |ClearCase-specific steps are necessary.               |
    |9.0.1.x           |                                                      |
    +-------------------------------------------------------------------------+

Workarounds and Mitigations

None

Change History

18 December 2017: Originally published
1 March 2018: Fixed links to download packages

*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.

- --------------------------END INCLUDED TEXT--------------------

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