A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not impacted.
If you are
unable to apply the update immediately due to maintenance windows or
change-freeze policies, you can implement the following as a temporary
mitigation to help reduce exposure until the update can be applied. This is
not a substitute for installing the security update.
- Navigate to the Administration > Security > Roles section.
- Edit
a role, review each session group that has permissions assigned to it, and
deselect the TransferFiles permission if it is selected.
- Save
your changes. Repeat for each role.
Cloud: Updated to the latest release. We recommend that
partners reinstall their host clients https://docs.connectwise.com/ScreenConnect_Documentation/Get_started/Host_client/Reinstall_the_host_client and update their access agents https://docs.connectwise.com/ScreenConnect_Documentation/Get_started/Host_page/Reinstall_and_upgrade_an_access_agent .
On-prem: Upgrade to ScreenConnect client version 26.6.5 or later.
Automate-integrated ScreenConnect deployments: Automate partners are eligible to update their integrated
on-premises ScreenConnect installation as long as their Automate Assurance
subscription is active. Automate partners should apply the ScreenConnect 26.6.5 update through Automate
Product Updates.