Security Bulletin: Privilege escalation vulnerability in IBM Spectrum Protect Backup-Archive Client and IBM Spectrum Protect for Virtual Environments (CVE-2021-20532)

Security Bulletin

Summary

IBM Spectrum Protect Backup-Archive Client and IBM Spectrum Protect for Virtual Environments may allow a local user to escalate their privileges. UPDATED: 14 June 2021 - Added 7.1 fix for IBM Spectrum Protect for Virtual Environments: Data Protection for VMware.

Vulnerability Details

CVEID: CVE-2021-20532
DESCRIPTION: IBM Spectrum Protect Client could allow a local user to escalate their privileges to take full control of the system due to insecure directory permissions.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198811 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/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	8.1.0.0-8.1.11.0
IBM Spectrum Protect for Virtual Environments: Data Protection for VMware	8.1.0.0-8.1.11.0 7.1.0.0-7.1.8.10
IBM Spectrum Protect for Virtual Environments: Data Protection for Hyper-V	8.1.0.0-8.1.11.0

Remediation/Fixes

IBM Spectrum Protect Backup-Archive Client Release	First Fixing VRM Level	*Platform*	*Link to Fix*
8.1	8.1.12	Windows	https://www.ibm.com/support/pages/node/6443671

IBM Spectrum Protect for Virtual Environments: Data Protection for VMware Release	First Fixing VRM Level	*Platform*	*Link to Fix*
8.1	8.1.12	Windows	https://www.ibm.com/support/pages/node/6415103
7.1	7.1.8.11	Windows	https://www.ibm.com/support/pages/node/316625

IBM Spectrum Protect for Virtual Environments: Data Protection for Hyper-V Release	First Fixing VRM Level	*Platform*	*Link to Fix*
8.1	8.1.12	Windows	https://www.ibm.com/support/pages/node/6415103

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Acknowledgement

The vulnerability was reported to IBM by Shadi Habbal (TÜV Rheinland i-sec GmbH).

Change History

23 April 2021: Initial Publication
14 June 2021: Added 7.1 fix.

*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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Tips

Security Bulletin: Privilege escalation vulnerability in IBM Spectrum Protect Backup-Archive Client and IBM Spectrum Protect for Virtual Environments (CVE-2021-20532)