IBM Security Bulletin: Spectrum Protect Backup-Archive Client on Microsoft Windows Workstation OS Vulnerability

IBM Corp. had published a security bulletin concerning vulnerability in Spectrum Protect Backup-Archive Client on Microsoft Windows Workstation OS.

Summary
A vulnerability in the Spectrum Protect Backup-Archive Client on Microsoft Windows workstation OS (Microsoft Windows 8.1, 10, and 11) may allow a local user to escalate their privileges due to improper access controls. This problem does not affect Microsoft Windows server OSs.

Vulnerability details:
CVEID: CVE-2023-28956
Description: Spectrum Protect Backup-Archive Client may allow a local user to escalate their privileges due to improper access controls.
CVSS base score: 8.4
CVSS temporal score: See for the current score.
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

Affected Product(s)	Version(s)
IBM Spectrum Protect Backup-Archive Client	8.1.0.0 – 8.1.17.2

Remediation/Fixes:

Product

Fixing level

Platform

Link to fix and instructions

IBM Storage Protect Backup-Archive Client

8.1.19.0

Microsoft Windows 8.1

Microsoft Windows 10

Microsoft Windows 11

https://www.ibm.com/support/pages/node/6989101

Workarounds and mitigations: None

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References
Complete CVSS v3 Guide
On-line Calculator v3

Acknowledgement: The vulnerability was reported to IBM by Wainner Brum.

Change history: 20 Jun 2023: Initial publication

*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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. “Affected Products and Versions” referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Cross-reference information

Product	Component	Platform	Version
IBM Spectrum Protect		Windows	8.1.0.0 – 8.1.17.2
IBM Storage Protect		Windows	8.1.0.0 – 8.1.17.2