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ESB-2016.0745 - [Win][BlackBerry][Apple iOS][Android] IBM MobileFirst Platform Foundation: Unauthorised access - Remote/unauthenticated

Date: 22 March 2016
References: ESB-2015.2950  ESB-2015.3127  ESB-2016.0648  

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Click here for PGP verifiable version
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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.0745
        Security Bulletin: Vulnerability in Apache Cordova affects
            IBM MobileFirst Platform Foundation (CVE-2015-5256)
                               22 March 2016

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

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

Product:           IBM MobileFirst Platform Foundation
Publisher:         IBM
Operating System:  Apple iOS
                   BlackBerry Device
                   Android
                   Windows
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Mitigation
CVE Names:         CVE-2015-5256  

Reference:         ESB-2016.0648
                   ESB-2015.3127
                   ESB-2015.2950

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg2C100010

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

Security Bulletin: Vulnerability in Apache Cordova affects IBM MobileFirst 
Platform Foundation (CVE-2015-5256)

Document information

More support for:

IBM MobileFirst Platform Foundation

Security

Software version:

6.3, 7.0, 7.1

Operating system(s):

Apple iOS, BlackBerry OS, Google Android, Windows

Reference #:

C1000109

Modified date:

2016-03-21

Security Bulletin

Summary

An Apache Cordova Vulnerability 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:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

IBM MobileFirst Platform Foundation Version 6.3, 7.0, 7.1

IBM Worklight Version 5.0.x, 6.0, 6.1, 6.2

Remediation/Fixes

None

Workarounds and Mitigations

For the proposed mitigation policy, please check 
https://developer.ibm.com/mobilefirstplatform/2016/02/24/cve-2015-5256-apache-cordova-vulnerable-to-improper-application-of-whitelist-restrictions-on-android/

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alerts like this.

References

Complete CVSS v3 Guide

On-line Calculator v3

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Change History

14 March 2016: Original version published

15 March 2016: Linked to CVE and cleaned up text

*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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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
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===========================================================================
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