Revision History

• 1.0: April 28, 2023 – Initial release
• 1.1: May 19, 2023 – Update to Impacted Components and added hotfix information

Issue: Privilege Escalation

A vulnerability in the way NetBackup Windows OS client validates the path to a DLL prior to loading may allow a user to elevate privileges and compromise the host operating system.

• CVE ID:CVE-2023-28759
• Severity: High
• CVSS v3.1 Base Score: 8.4 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
• Impacted Components:
  • NetBackup Primary server, Media server and Client installed on the Windows operating system.
• Affected Versions: All versions prior to 10.0
• Recommended action:
  • Upgrade to 10.0 or later and no further action is needed.
  • Or upgrade to version 8.3.0.1 and apply Hotfix for Etrack 4115799
  • Or upgrade to version 8.3.0.2 and apply Hotfix for Etrack 4116057
  • Or upgrade to version 9.0.0.1 and apply Hotfix for Etrack 4116060
  • Or upgrade to Version 9.1.0.1 and apply Hotfix for Etrack 4115260
• Mitigation
  • The issue is mitigated if non-admin users DO NOT have access to create files in the DLL search path.
  • Please see Microsoft documentation for DLL search order. https://learn.microsoft.com/en-us/windows/win32/dlls/dynamic-link-library-search-order

Questions

For questions or problems regarding this vulnerability please contact Veritas Technical Support (https://www.veritas.com/support)

Acknowledgement

Veritas would like to thank the Lockheed Martin Red Team for notifying us about this issue.

Disclaimer

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