Alta Video — 1761: Misuse of ServerConfig.PublicKeyCallback may cause authorization bypass in ssh

Release Date

10th February 2025.

Overview

A vulnerability has been identified in the golang.org/x/crypto library's `ServerConfig.PublicKeyCallback` function. Improper use of this callback can lead to an authorization bypass, allowing attackers to authenticate without possessing the necessary private keys. This occurs because the callback's execution order doesn't reliably reflect successful authentication, enabling attackers to manipulate the application's authorization decisions. This functionality is used by the `gliderlabs/ssh` library, used by the Alta Video Cloud Connector and Alta Video cameras.

Affected Products

• Alta Video:
• All Stable upgrade channel versions before 7.2.10.
• All Beta upgrade channel versions before 7.3.2.
• Avigilon Cloud-Native Cameras:
• All Stable upgrade Channel versions before 7.2.10.
• All Beta upgrade channel versions before 7.3.2.

Unaffected Products

• Alta Video:
• All Stable upgrade channel versions after and including 7.2.10.
• All Beta upgrade channel versions after and including 7.3.2.
• Avigilon Cloud-Native Cameras:
• All Stable upgrade channel versions after and including 7.2.10.
• ll Beta upgrade channel versions after and including 7.3.2.
• Alta Video Cloud: all versions.

Resolution

This issue has been fixed in:

• Alta Video Beta upgrade channel version 7.3.2 and Stable upgrade channel version 7.2.10.
• Avigilon Cloud-Native Cameras Beta upgrade channel version 7.3.2 and Stable upgrade channel version 7.2.10.

It is *crucial* 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 Video User Interface.

Vulnerability Information

• CVE: CVE-2024-45337
• CVSSv3 score: 9.1 (Critical)
• CVSSv3 vector: [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)

Mitigations

There are no known mitigations for this issue.

Work arounds

There are no known work arounds for this issue.

Acknowledgements

Issue reported by the Go Team.

Disclosure Timeline

• 12/12/2024 Issue found
• 12/12/2024 Root cause established
• 13/12/2024 Fix identified
• 16/12/2024 Patched Alta Video (Beta upgrade channel) released
• 17/12/2024 Patched Alta Video (Stable upgrade channel) released
• 16/12/2024 Patched Avigilon Cloud-Native Cameras (Beta upgrade channel) released
• 17/12/2024 Patched Avigilon Cloud-Native Cameras (Stable upgrade channel) released
• 10/02/2025 Vulnerability publicly disclosed