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Security Bulletin: privilege escalation in IBM Business Process Manager (BPM) - CVE-2017-1539

Security Bulletin


Summary

Synchronization between the user registry and the IBM BPM database lead to invalid memberships in case there is an internal group in the IBM BPM database and a group in the user registry with the same name.

Vulnerability Details

CVEID: CVE-2017-1539
DESCRIPTION:
IBM Business Process Manager is vulnerable to privilege escalation by not properly distinguishing internal group memberships from user registry group memberships. By manipulating LDAP group membership an attack might gain privileged access.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/130807 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

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

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

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

- IBM Business Process Manager V8.5.5.0

- IBM Business Process Manager V8.5.6.0 through V8.5.6.0 CF2

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

Remediation/Fixes

The recommended solution is to apply the Interim Fix (iFix) or CF containing APAR JR58241 as soon as practical:


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

For IBM BPM V8.0.0.0 through V8.0.1.3


For IBM BPM V8.5.0.0 through V8.5.0.2
For IBM BPM V8.5.5.0
For IBM BPM V8.5.6.0 through V8.5.6.0 CF2
  • Install CF2 as required by iFix and then apply iFix JR58241

For IBM BPM V8.5.7.0 through V8.5.7.0 CF 2017.06

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Change History

22 Sep 2017: 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.

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Document Information

Modified date:
15 June 2018

UID

swg22007451