CVE-2023-52947 Missing authorization in Synology Active Backup for Business Agent

Medium 4.0 Published 26 Sep 2024 Updated 26 Sep 2024

Local users can bypass authentication to log out the Synology Active Backup for Business Agent, potentially disrupting session management without affecting backup operations.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-52947?

CVE-2023-52947 is a medium-severity missing authorization vulnerability in Synology Active Backup for Business Agent, published on 26 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Missing authentication for critical function vulnerability in logout functionality in Synology Active Backup for Business Agent before 2.6.3-3101 allows local users to logout the client via unspecified vectors. The backup functionality will continue to operate and will not be affected by the logout.

Weakness: CWE-306

Which versions are affected by CVE-2023-52947?

It affects 1 product.

Products include Synology Active Backup for Business Agent.

How do I fix CVE-2023-52947?

No fix has been published for CVE-2023-52947 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-52947 being exploited?

There is no known exploitation of CVE-2023-52947 in the wild and no public exploit code.

Sources

Also known as GHSA-56mf-38rx-qwp9.