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AUSCERT External Security Bulletin Redistribution
ESB-2018.0592
Security Bulletin: Vulnerabilities in Apache POI Affect IBM
WebSphere Portal (CVE-2017-5644, CVE-2017-12626)
1 March 2018
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AusCERT Security Bulletin Summary
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Product: IBM WebSphere Portal
Publisher: IBM
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
IBM i
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-12626 CVE-2017-5644
Reference: ESB-2018.0395
ESB-2018.0338
ESB-2017.2886
ESB-2017.2669
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg22008072
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Security Bulletin: Vulnerabilities in Apache POI Affect IBM WebSphere Portal
(CVE-2017-5644, CVE-2017-12626)
Document information
More support for: WebSphere Portal
Software version: 7.0, 8.0
Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS
Reference #: 2008072
Modified date: 28 February 2018
Security Bulletin
Summary
A fix is available for vulnerabilities in Apache POI that affect IBM
WebSphere Portal (CVE-2017-5644, CVE-2017-12626).
Vulnerability Details
CVEID: CVE-2017-5644
DESCRIPTION: Apache POI is vulnerable to a denial of service, cause by
an XML External Entity Injection (XXE) error when processing XML data. By
using a specially-crafted OOXML file, a remote attacker could exploit this
vulnerability to consume all available CPU resources.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/123699 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-2017-12626
DESCRIPTION: Apache POI is vulnerable to a denial of service, caused by an
error while parsing malicious WMF, EMF, MSG and macros and specially crafted
DOC, PPT and XLS. By persuading a victim to open a specially crafted file,
a remote attacker could exploit this vulnerability to cause the application
to enter into an infinite loop or an out of memory exception.
CVSS Base Score: 5.5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/138361 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:H)
Affected Products and Versions
Affected Product
Affected Versions
IBM WebSphere Portal 8.0.0.0 - 8.0.0.1 CF22
IBM WebSphere Portal 7.0.0.0 - 7.0.0.2 CF30
For unsupported versions IBM recommends upgrading to a fixed, supported
version of the product.
Remediation/Fixes
Product VRMF APARs Fix
IBM WebSphere Portal 8.0.0 through 8.0.0.1 PI86843 Upgrade to Fix Pack 8.0.0.1 with
Cumulative Fix 22 (CF22) and then
apply the Interim Fix PI86843.
(Combined Cumulative Fixes for WebSphere Portal 8.0.0.1)
IBM WebSphere Portal 7.0.0 through 7.0.0.2 PI86843 Upgrade to Fix Pack 7.0.0.2 with
Cumulative Fix 30 (CF30) and then
apply the Interim Fix PI86843.
(Combined Cumulative fixes for WebSphere Portal 7.0.0.2)
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.
References
Complete CVSS v3 Guide
On-line Calculator v3
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
7 February 2018: Original version published
8 February 2018: Updated all APAR references to PI86843
28 February 2018: Added CVE-2017-12626
*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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