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CVE-2021-43037

Description

An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. The Unitrends Windows agent was vulnerable to DLL injection and binary planting due to insecure default permissions. This allowed privilege escalation from an unprivileged user to SYSTEM.

POC

Reference

- https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961

- https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1

- https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2

Github

No PoCs found on GitHub currently.