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AUSCERT External Security Bulletin Redistribution
ESB-2016.1084
Security Bulletin: Vulnerability in Apache Cordova Android
may affect IBM WebSphere Portal (CVE-2015-5256)
4 May 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Portal
Publisher: IBM
Operating System: AIX
HP-UX
IBM i
Linux variants
Solaris
Windows
z/OS
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2015-5256
Reference: ESB-2015.2950
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21981220
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Security Bulletin: Vulnerability in Apache Cordova Android may affect IBM
WebSphere Portal (CVE-2015-5256)
Security Bulletin
Document information
More support for:
WebSphere Portal
Software version:
8.5
Operating system(s):
AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS
Reference #:
1981220
Modified date:
2016-05-02
Summary
IBM WebSphere Portal provides an integration with IBM MobileFirst. An Apache
Cordova Vulnerability (CVE-2015-5256) for improper application of whitelist
restrictions on Android was addressed by IBM MobileFirst Platform Foundation.
Android applications created using Apache Cordova that use a remote server
contain a vulnerability where whitelist restrictions are not properly
applied. Improperly crafted URIs could be used to circumvent the whitelist,
allowing for the execution of non-whitelisted JavaScript.
Vulnerability Details
CVEID:
CVE-2015-5256
DESCRIPTION:
Apache Cordova Android could allow a remote attacker to bypass security
restrictions, caused by the improper application of whitelist restrictions.
An attacker could exploit this vulnerability to bypass intended access
restrictions.
CVSS Base Score: 3.7
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/108200
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)
Affected Products and Versions
IBM WebSphere Portal 8.5 *
* if Integration with IBM MobileFirst is used.
Remediation/Fixes
Read Mitigation Section
Workarounds and Mitigations
See the recommendations from Apache Cordova as stated at this Apache Cordova
link
(http://cordova.apache.org/announcements/2015/11/20/security.html)
Excerpt from the Apache Cordova link
(http://cordova.apache.org/announcements/2015/11/20/security.html)
"There is no specific software patch for this vulnerability. Developers that
are concerned about this should make sure to only whitelist trusted websites,
and make sure that whitelisted websites dont redirect to a malicious website.
Developers should also use SSL, as well as Content Security Policy(CSP) to
further mitigate this issue.
Its always recommended for developers to upgrade to the latest version of
Cordova Android."
Get Notified about Future Security Bulletins
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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
IBM Knowledge Center for IBM WebSphere Portal 8.5.0 - Integrating with IBM
MobileFirst
Security Bulletin: Vulnerability in Apache Cordova affects IBM MobileFirst
Platform Foundation (CVE-2015-5256)
Change History
2 May 2016: 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.
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