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

Security Bulletin


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

 

 

Affected Product(s)Version(s)               
IBM Business Automation WorkflowV19.0
V18.0
IBM Business Process ManagerV8.6
V8.5
V8.0

 

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:

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

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

28 May 2020: Initial Publication

*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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Document Information

Modified date:
28 May 2020

UID

ibm16217550

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