CVE-2021-43037

EUVD-2021-29991
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 16%
Affected Products (NVD)
VendorProductVersion
kaseyaunitrends_backup
10.0 ≤
𝑥
< 10.5.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
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
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