Ava-349: Denial of service vulnerability in Ava Aware on premise and Ava cameras

Release Date

18th December 2020.

Overview

A vulnerability in a third party component would allow an attacker to crash the SSH server component of an Ava Aware on premise appliance or an Ava camera.

Affected Products

• Ava Aware:
  • All Stable upgrade channel versions before 3.2.5.
  • All Beta upgrade channel versions before 3.3.2.
• Ava cameras:
  • All Stable upgrade channel versions before 3.2.5.
  • All Beta upgrade channel versions before 3.3.2.

Unaffected Products

• Ava Aware:
  • All Stable upgrade channel versions after and including 3.2.5.
  • All Beta upgrade channel versions after and including 3.3.2.
• Ava cameras:
  • All Stable upgrade channel versions after and including 3.2.5.
  • All Beta upgrade channel versions after and including 3.3.2.
• Ava Cloud: all versions.

Resolution

This issue has been fixed in Ava Aware Beta upgrade channel version 3.3.2 and Stable upgrade channel version 3.2.5. 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 Ava Aware User Interface. This issue has been fixed in Ava camera Beta upgrade channel version 3.3.2 and Stable upgrade channel version 3.2.5. It is strongly recommended that all Ava camera installations running an affected version upgrade to the latest release as soon as possible. Releases are available to download through the Ava Aware User Interface for Ava managed cameras and the Ava camera UserInterface for unmanaged cameras.

Vulnerability Information

• CVE: CVE-2020-29652
• CVSSv3 score: 5.3 (Medium)
• CVSSv3 vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Mitigations

This issue can be mitigated by preventing access to the ssh port of your Ava Aware on premise appliances and Ava cameras (e.g. through firewall rules). For Ava cameras customers could consider disabling ssh.

Work arounds

There are no known work arounds for this issue.

Acknowledgements

This issue was discovered and reported by Joern Schneewesiz, GitLab Security Research Team, and is tracked as CVE-2020-29652.

Disclosure Timeline

• 09/12/2020 Issue found by Joern Schneewesiz, GitLab Security Research Team
• 16/12/2020 Vulnerability was publicly disclosed and details made available to Ava Security Team
• 17/12/2020 Root cause established
• 17/12/2020 Fix identified
• 18/12/2020 Patched Ava Aware (Beta upgrade channel) released
• 18/12/2020 Patched Ava Aware (Stable upgrade channel) released
• 18/12/2020 Patched Ava cameras (Beta upgrade channel) released
• 18/12/2020 Patched Ava cameras (Stable upgrade channel) released
• 18/12/2020 Advisory published internally
• 18/12/2020 Vulnerability publicly disclosed