Security Bulletin: XML External Entity Injection vulnerability in IBM Business Automation Workflow and IBM Business Process Manager (BPM) (CVE-2019-4424)

Security Bulletin

Summary

An XML External Entity Injection vulnerability in IBM Business Automation Workflow and IBM BPM has been found.

Vulnerability Details

CVEID: CVE-2019-4424
DESCRIPTION: IBM Business Automation Workflow is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/162770 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L)

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 CF2

- IBM Business Process Manager V8.5.5.0

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

- IBM Business Process Manager V8.0.0.0 through V8.0.1.3

- IBM Business Process Manager V7.5.0.0 through V7.5.1.2

Remediation/Fixes

Install interim fix JR61232 as appropriate for your current IBM Business Automation Workflow or IBM BPM version.

For IBM Business Automation Workflow V18.0.0.0 through V19.0.0.2
· Upgrade to at least IBM Business Automation Workflow V18.0.0.1 as required by iFix and then apply iFix JR61232
--OR--
· Apply cumulative fix IBM Business Automation Workflow V19.0.0.3

For IBM BPM V8.6.0.0 through V8.6.0.0 CF 2018.03
· Upgrade to at least IBM BPM V8.6.0.0 CF 2017.12 as required by iFix and then apply iFix JR61232

For IBM BPM V8.5.7.0 through V8.5.7.0 CF 2017.06
· Apply Cumulative Fix 2017.06 and then apply iFix JR61232

For IBM BPM V8.5.6.0 through V8.5.6.0 CF2
· Apply CF2 as required by iFix and then apply iFix JR61232

For IBM BPM V8.5.5.0
· Apply iFix JR61232

For IBM BPM V8.5.0.0 through V8.5.0.2
· Install Fix Pack 2 as required by iFix and then apply iFix JR61232

For IBM BPM V8.0.0.0 through V8.0.1.3

· Upgrade to minimal Refresh Pack 1, install Fix Pack 3 as required by iFix and then apply iFix JR61232

For IBM BPM V7.0.0.0 through V7.5.1.2

· Upgrade to minimal Refresh Pack 1, install Fix Pack 2 as required by iFix and then apply iFix JR61232

As IBM Business Process Manager V7.5 and V8.0 are out of general support, customers with a support extension contract can contact IBM support to request the fix.

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

Off

Change History

6 August 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

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

Internal Use Only

Advisory ID 16611
PR BPM: 139498
PR BAW: 138036

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Tips

Security Bulletin: XML External Entity Injection vulnerability in IBM Business Automation Workflow and IBM Business Process Manager (BPM) (CVE-2019-4424)