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Security Bulletin: The BigFix Platform versions 9.1 and 9.2 have security vulnerabilities that have been addressed via patch releases

Security Bulletin


Summary

The BigFix Platform verions 9.1 and 9.2 have some vulnerabilities associated with the zlib library, as well as Cross Site Scripting and XML External Entity that have been addressed in patch releases 9.1 patch 11 and 9.2 patch 11 respectively

Vulnerability Details

CVEID: CVE-2016-9840
DESCRIPTION:
zlib is vulnerable to a denial of service, caused by an out-of-bounds pointer arithmetic in inftrees.c. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120508 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2016-9841
DESCRIPTION:
zlib is vulnerable to a denial of service, caused by an out-of-bounds pointer arithmetic in inftrees.c. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120509 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2016-9842
DESCRIPTION:
zlib is vulnerable to a denial of service, caused by an undefined left shift of negative number. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120510 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2016-9843
DESCRIPTION:
zlib is vulnerable to a denial of service, caused by a big-endian out-of-bounds pointer. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120511 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2017-1203
DESCRIPTION:
IBM BigFix Plaltform is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.
CVSS Base Score: 6.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/123678 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

CVEID: CVE-2017-1219
DESCRIPTION:
IBM BigFix Plaltform is vulnerable XML External Entity Injection (XXE) error when processing XML data. A remote attacker could exploit this vulnerability to expose highly sensitive information or consume memory resources.
CVSS Base Score: 5.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/123859 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L)

Affected Products and Versions

BigFix Platform Version 9.1, BigFix Platform Version 9.2

Remediation/Fixes



CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, CVE-2016-9843, CVE-2017-1219:
BigFix Platform 9.1, BigFix Platform 9.2:

To remediate these vulnerabilities please apply the upgrade-patch (9.1 patch 11 or 9.2 patch 11) by looking for the associated upgrade-patch fixlet in the Console, launching and applying it.

CVE-2017-1203:
Case Set 1:

BigFix Platform 9.1, BigFix Platform 9.2:
(i) Cross site scripting - Console - Client Compliance Policy Wizard is not protected for java script injection
(ii) Cross site scripting - Server/Relay - BESServer/Relay URL are not protected against javascript injection
(iii)Cross Site Scripting - Console Fixlet import can accept java injection in description

To remediate these vulnerabilities please apply the upgrade-patch (9.1 patch 11 or 9.2 patch 11) by looking for the associated upgrade-patch fixlet in the Console, launching and applying it.

Case Set 2:

(i) Cross site scripting - Server/Relay - Unauthenticated client traffic

BigFix Platform 9.1/BigFix Platform 9.2:
To remediate these vulnerabilities please apply the upgrade-patch (9.1 Patch 11 or 9.2 Patch 11) by looking for the associated upgrade-patch fixlet in the Console, launching and applying it. Then follow the following post configuration step on the System where the Primary BigFix Server is installed.

Update or set the new masthead parameter "minimumSupportedClient=9.0" using the the following BESAdmin tool command:

On Windows:
BESAdmin.exe /minimumSupportedClient=<VALUE> /sitePvkLocation=<LICENSE_PVK_FILE> /sitePvkPassword=<LICENSE_PVK_PWD>

On Linux:
/opt/BESServer/bin/BESAdmin.sh -minimumSupportedClient=<VALUE> -sitePvkLocation=<LICENSE_PVK_FILE> -sitePvkPassword=<LICENSE_PVK_PWD>


NOTE: Any clients at version 8.2 or lower in the deployment will stop working as soon as minimumSupportedClient is set to 9.0.

Please see the 9.1 Patch 11 and 9.2 Patch 11 Release notes and documentation for additional information about the minimumSupportedClient parameter.

Case Set 3:
WebUI:

For customers on running BigFix 9.2.6 or greater and running WebUI please refer to the following Security Bulletin for instructions on how to remediate the WebUI cases associated with this vulnerability (CVE-2017-1203) here: http://www-01.ibm.com/support/docview.wss?uid=swg22005246

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References

Complete CVSS v3 Guide
On-line Calculator v3

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

July 13, 2017: Original version 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.

Document information

More support for: IBM BigFix family

Software version: 9.1, 9.2

Operating system(s): Platform Independent

Software edition: Edition Independent

Reference #: 2006014

Modified date: 14 July 2017