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Security Bulletin: Cross-site request forgery vulnerability in IBM Business Automation Workflow (CVE-2018-2000)

Security Bulletin


Summary

A Cross-site request forgery vulnerability has been found in IBM Business Automation Workflow.

Vulnerability Details

CVEID:  CVE-2018-2000
DESCRIPTION: IBM Business Process Manager is vulnerable to cross-site request forgery which could allow an attacker to execute malicious and unauthorized actions transmitted from a user that the website trusts.
CVSS Base Score: 4.3
CVSS Temporal Score: See  https://exchange.xforce.ibmcloud.com/vulnerabilities/154890  for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

Affected Products and Versions

- IBM Business Automation Workflow V18.0.0.0 through V18.0.0.1

- IBM Business Process Manager V8.6.0.0 Cumulative Fix 2017.12 through V8.6.0.0 Cumulative Fix 2018.03

Note: A fix for IBM Business Automation Workflow V18.0.0.2 is available even though IBM Business Automation Workflow V18.0.0.2 is not vulnerable to this security issue. The intention of this interim fix is to prevent the following unnecessary warning message in IBM Installation Manager, which you see when you upgrade IBM Business Automation Workflow: 

"One or more fixes will be uninstalled when IBM(R) Business Automation Workflow is updated to V18.0.0.2. The update does not address issues that were resolved previously by the maintenance packages. The problems might return if fixes for the the following issues are not reapplied or have new fixes applied to prevent the problems from returning.
- JR60539 in the package IBM(R) Business Automation Workflow ..."

Remediation/Fixes

The recommended solution is to apply the Interim Fix (iFix) or Cumulative Fix (CF) containing APAR  JR60539  as soon as practical:


For IBM Business Automation Workflow V18.0.0.0 through V18.0.0.1
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix  JR60539
--OR--
· Apply cumulative fix Business Automation Workflow V18.0.0.2

For IBM Business Process Manager V8.6.0.0 CF 2017.12 through V8.6.0.0 CF 2018.03
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix  JR60539
--OR--
· Upgrade to Business Automation Workflow V18.0.0.2 

Workarounds and Mitigations

None

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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.

Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

4 April 2019: initial 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.


Cross reference information
Product Component Platform Version Edition
IBM Business Process Manager 8.6.0.CF201803, 8.6.0.CF201712
IBM Business Process Manager Express 8.6.0.CF201803, 8.6.0.CF201712

Document information

More support for: IBM Business Automation Workflow

Software version: 18.0.0.0, 18.0.0.1

Reference #: 0870496

Modified date: 04 April 2019