Security Bulletin: Reverse tabnabbing vulnerability affects IBM Business Automation Workflow and IBM Business Process Manager (BPM) - CVE-2020-4490

Summary

IBM Business Process Manager (Process Center) and IBM Business Automation Workflow (Workflow Center) are vulnerable to a reverse tabnabbing vulnerability.

Vulnerability Details

CVEID:CVE-2020-4490
**DESCRIPTION:**IBM Business Automation Workflow and IBM Business Process Manager could allow a remote attacker to bypass security restrictions, caused by a reverse tabnabbing flaw. An attacker could exploit this vulnerability and redirect a vitcim to a phishing site.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181989 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N)

Affected Products and Versions

For earlier and unsupported versions of the products, IBM recommends upgrading to a fixed, supported version of the product.

Remediation/Fixes

The recommended solution is to apply the Interim Fix (iFix) or Cumulative Fix (CF) containing APAR JR62210 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 and V19.0
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix JR62210
--OR–
· Apply cumulative fix Business Automation Workflow V20.0.0.1 or later (targeted availability 2Q 2020)

For IBM Business Process Manager V8.6
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix JR62210
--OR–
· Upgrade to Business Automation Workflow V20.0.0.1 or later (targeted availability 2Q 2020)

For IBM BPM V8.5
· Upgrade to IBM BPM V8.5.7, apply Cumulative Fix 2017.06 and then apply iFix JR62210
--OR–
· Upgrade to Business Automation Workflow V20.0.0.1 or later (targeted availability 2Q 2020)

For IBM BPM V8.0
· Upgrade to IBM BPM V8.0.1, apply Fix Pack 3 and then apply iFix JR62210
--OR–
· Upgrade to Business Automation Workflow V20.0.0.1 or later (targeted availability 2Q 2020)

Workarounds and Mitigations

None