The Centre for Cybersecurity Belgium recommends system administrators to patch their Synology devices with versions 1.4.4-0635 or above and 1.4.3-0534 or above.
Adviezen
Scope
- Check if your organization runs an on-premises Microsoft Exchange server with OWA enabled.
Patch
The CCB recommends installing updates for vulnerable devices with the highest priority, after thorough testing.
Patch
Update Lansweeper to the latest version as described in Lansweeper Changelog - Lansweeper.com.
Patch
To address the issue, Citrix has released a security update, recommending to upgrade to the latest available build for the 12.0 (12.1.65.25) or 13.0 branch (13.0.88.16), or to the 13.1 version, which is not affected.
CERT.be recommends system administrators to apply the latest patches released by the vendor as soon as possible.
When patching, external facing systems should be prioritised.
Update the installation to one of the latest versions:
- Version 14.21.1
- Version 16.18.1
- Version 18.12.1
- Version 19.0.1
Upgrade
The CCB strongly encourages organisations to ensure they upgrade their systems to: