Ava-732: Denial of service to Cloud Connector when adding a specific third party camera

Release Date

1st February 2023.

Overview

Adding a Vivotek 9187-H camera to a Cloud Connector instance would cause all other camera streams to freeze.

Affected Products

• Ava Aware:
  • All Stable upgrade channel versions before 5.5.5.
  • All Beta upgrade channel versions before 5.5.4.

Unaffected Products

• Ava Aware:
  • All Stable upgrade channel versions after and including 5.5.5.
  • All Beta upgrade channel versions after and including 5.5.4.
• Ava Cameras: all versions.
• Ava Cloud: all versions.

Resolution

This issue has been fixed in Ava Aware Beta upgrade channel version 5.5.4 and Stable upgrade channel version 5.5.5.

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.

Vulnerability Information

• CVE: pending
• CVSSv3 score: 4.9 (medium)
• CVSSv3 vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Mitigations

There are no known mitigations for this issue.

Work arounds

Removing Vivotek 9187-H cameras from the devices list will restore the streams of all the other cameras.

Acknowledgements

Issue found internally by Ava Security.

Disclosure Timeline

• 15/12/2022 Issue found internally by Ava Security
• 03/01/2023 Root cause established
• 04/01/2023 Fix identified
• 05/01/2022 Patched Ava Aware (Beta upgrade channel) released
• 11/01/2022 Patched Ava Aware (Stable upgrade channel) released
• 01/02/2023 Vulnerability publicly disclosed