Security Bulletin: Reflected XSS in IBM Worklight OAuth Server Web Api

Summary

A Reflected Cross Site Scripting (XSS) vulnerability exists in the authorization function exposed by RESTful Web Api of IBM Worklight Framework. The vulnerable parameter is “scope”, if you set as value a “realm”; not defined in authenticationConfig.xml you get an HTTP 403 Forbidden response and the value will be reflected in the body of the HTTP response.

Vulnerability Details

CVEID: CVE-2017-1500 **DESCRIPTION: *IBM Worklight 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: 5.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/129404 for the current score
CVSS Environmental Score: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)

Affected Products and Versions

IBM MobileFirst Platform Foundation 8.0.0.0
IBM MobileFirst Platform Foundation 7.1.0.0
IBM MobileFirst Platform Foundation 7.0.0.0
IBM MobileFirst Platform Foundation 6.3.0.0
IBM Worklight Enterprise Edition 6.2.0.1
IBM Worklight Enterprise Edition 6.1.0.2

Remediation/Fixes

Product

| VRMF|APAR|Remediation/First Fix
—|—|—|—
IBM MobileFirst Platform Foundation| 8.0.0.0| PI71750 | Download the latest iFix for IBM MobileFirst Platform Foundation on FixCentral
IBM MobileFirst Platform Foundation| 7.1.0.0| Download the latest iFix for IBM MobileFirst Platform Foundation on FixCentral
IBM MobileFirst Platform Foundation| 7.0.0.0| Download the latest iFix for IBM MobileFirst Platform Foundation on FixCentral
IBM MobileFirst Platform Foundation| 6.3.0.0| Download the latest iFix for IBM MobileFirst Platform Foundation on FixCentral
IBM Worklight Enterprise Edition| 6.2.0.1|
| Download the latest iFix for IBM Worklight Enterprise Edition on FixCentral
IBM Worklight Enterprise Edition| 6.1.0.2|
| Download the latest iFix for IBM Worklight Enterprise Edition on FixCentral

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

The vulnerability was reported to IBM by Gabriele Gristina at Emaze Networks S.p.A.

Change History

21/07/2017 - Publish
27/07/2017 - CVEID update

*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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. “Affected Products and Versions” referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

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