Vulnerability CVE-2019-4031 affects IBM Workload Scheduler because a local user could launch taskLauncher program and create or replace files created by root user escalating privileges.
DESCRIPTION: IBM Tivoli Workload Scheduler contains a vulnerability that could allow a local user to write files as root in the file system, which could allow the attacker to gain root privileges.
CVSS Base Score: 8.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/155997 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
IBM Workload Scheduler Distributed 9.3.0 FP03 and earlier
IBM Workload Scheduler Distributed 9.4.0 FP05 and earlier
The following limited availability fixes for IJ15085 are available for download on FixCentral
To be applied on top of Tivoli Workload Scheduler Distributed 9.2.0 FP03
To be applied on top of Tivoli Workload Scheduler Distributed 9.3.0 FP03
APAR IJ15085 is already included in IWS 9.4.0 FP06 and IWS 9.5.0 FP01.
Workarounds and Mitigations
Get Notified about Future Security Bulletins
The vulnerability was reported to IBM by Davide Cioccia - Senior Security Engineer at ING
Oct 1 2019 original version
*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.
09 October 2019