Alta Aware — 635: External Viewer wall still showed video after video view was deleted

Release Date

12th of January 2024.

Overview

An opened External Viewer wall would continue streaming video even though the associated video view had been deleted.

Affected Products

• Alta Aware:
  • All Stable upgrade channel versions before 6.4.5.
  • All Beta upgrade channel versions before 6.4.0.

Unaffected Products

• Alta Aware:

  • All Stable upgrade channel versions after and including 6.4.5.
  • All Beta upgrade channel versions after and including 6.4.0.

• Avigilon Ava Cameras: all versions.

• Alta Cloud: all versions.

Resolution

This issue has been fixed in Alta Video Beta upgrade channel version 6.4.0 and Stable upgrade channel version 6.4.5.

It is strongly recommended that all installations running an affected version are upgraded to the latest release as soon as possible. Releases are available to download through the Alta Aware User Interface.

Vulnerability Information

• CVSSv3 score: 6.5 (Medium)
• CVSSv3 vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Mitigations

There are no known mitigations for this issue.

Work arounds

There are no known work arounds for this issue.

Acknowledgements

Issue found internally by Avigilon Alta.

Disclosure Timeline

• 29/04/2022 Issue found internally by Avigilon Alta
• 05/10/2023 Root cause established
• 13/10/2023 Fix identified
• 09/11/2023 Patched Alta Video (Beta upgrade channel) released
• 12/12/2023 Patched Alta Video (Stable upgrade channel) released
• 12/01/2024 Vulnerability publicly disclosed