Security Bulletin: Vulnerability CVE-2019-4031 affects IBM Workload Scheduler

Summary

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.

Vulnerability Details

CVEID: CVE-2019-4031 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&gt; 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

Tivoli Workload Scheduler Distributed 9.2.0 FP03 and earlier
IBM Workload Scheduler Distributed 9.3.0 FP03 and earlier
IBM Workload Scheduler Distributed 9.4.0 FP05 and earlier

IBM Workload Scheduler Distributed 9.5.0 GA

Remediation/Fixes

APAR IJ15085 addresses CVE-2019-4031 vulnerability for IBM Workload Scheduler.
The following limited availability fixes for IJ15085 are available for download on FixCentral
9.2.0-TIV-TWS-FP0003-IJ15085
To be applied on top of Tivoli Workload Scheduler Distributed 9.2.0 FP03
9.3.0-TIV-TWS-FP0003-IJ15085
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

None