Security Bulletin: Open redirect security vulnerability in IBM Business Automation Workflow and IBM Business Process Manager (BPM) (CVE-2019-4479)

Summary

IBM Business Process Manager and IBM Business Automation Workflow could allow a remote attacker to conduct phishing attacks, using an open redirect attack.

Vulnerability Details

CVEID: CVE-2019-4479 DESCRIPTION: IBM Business Process Manager and IBM Business Automation Workflow could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim.
CVSS Base Score: 6.8
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/164061&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N)

Affected Products and Versions

- IBM Business Automation Workflow V18.0.0.0 through V19.0.0.2

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

- IBM Business Process Manager V8.5.7.0 through V8.5.7.0 Cumulative Fix 2017.06

- IBM Business Process Manager V8.5.6.0 through V8.5.6.0 Cumulative Fix 2

- IBM Business Process Manager V8.5.5.0

- IBM Business Process Manager V8.5.0.0 through V8.5.0.2

Remediation/Fixes

The recommended solution is to apply the Interim Fix (iFix) or Cumulative Fix (CF) containing APAR JR61292 as soon as practical:

• IBM Business Automation Workflow (including fix for IBM Business Process Manager V8.6.0.0 2018.03)
• IBM Business Process Manager Advanced
• IBM Business Process Manager Standard
• IBM Business Process Manager Express

For IBM Business Automation Workflow V18.0.0.0 through V19.0.0.2
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix JR61292
--OR–
· Apply cumulative fix Business Automation Workflow V19.0.0.3

For IBM Business Process Manager V8.6.0.0 through V8.6.0.0 CF 2018.03
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix JR61292
--OR–
· Upgrade to Business Automation Workflow V19.0.0.3

For IBM BPM V8.5.0.0 through V8.5.7.0 CF 2017.06
· Upgrade to minimal version of Business Process Manager (8.5.7) and apply Cumulative Fix 2017.06 and then apply iFix JR61292
--OR–
· Upgrade to Business Automation Workflow V19.0.0.3

Workarounds and Mitigations

None