An authenticated user can claim and work on ad hoc tasks without required permission in some views shipped with IBM Business Process manager
DESCRIPTION: Due to incorrect authorization in IBM Business Process Manager an attacker can claim and work on ad hoc tasks he is not assigned to.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/136151 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
Affected Products and Versions
- IBM Business Process Manager V126.96.36.199
- IBM Business Process Manager V188.8.131.52 through V184.108.40.206 CF2
- IBM Business Process Manager V220.127.116.11 through V18.104.22.168 Cumulative Fix 2017.06
- IBM Business Process Manager V22.214.171.124 through V126.96.36.199 Cumulative Fix 2017.12
The recommended solution is to apply the Interim Fix (iFix) or Cumulative Fix (CF) containing APAR JR58771 as soon as practical:
- IBM Business Process Manager
- IBM Business Process Manager Advanced
- IBM Business Process Manager Standard
- IBM Business Process Manager Express
For IBM BPM V188.8.131.52 through V184.108.40.206 Cumulative Fix 2017.12
- Apply iFix JR58771
Workarounds and Mitigations
Get Notified about Future Security Bulletins
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.
23 March 2018: 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.
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.
15 June 2018