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Security Bulletin: Ineffective Cross Site Request Forgery (CSRF) protection in IBM Business Process Manager (BPM) (CVE-2017-1769)

Security Bulletin


Summary

The optional Cross Site Request Forgery (CSRF) protection feature using Referer header whitelisting is ineffective in IBM BPM V8.6.0.0. The check is effectively skipped.

Vulnerability Details

CVEID: CVE-2017-1769
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/136783 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 Process Manager V8.6.0.0

Remediation/Fixes

The recommended solution is to apply the Interim Fix (iFix) or Cumulative Fix (CF) containing APAR JR58805 as soon as practical:


For IBM BPM V8.6.0.0 (released 2017.09)

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.

References

Complete CVSS v3 Guide
On-line Calculator v3

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

22 January 2018: 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
Segment Product Component Platform Version Edition
Business Integration IBM Business Process Manager Express Linux, Windows 8.6

Document information

More support for: IBM Business Process Manager
Security

Software version: 8.6

Operating system(s): AIX, Linux, Windows

Reference #: 2011579

Modified date: 22 January 2018