Vulnerability Details : CVE-2021-43037
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.
Vulnerability category: Gain privilege
Exploit prediction scoring system (EPSS) score for CVE-2021-43037
Probability of exploitation activity in the next 30 days: 0.11%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 43 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-43037
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
6.9
|
MEDIUM | AV:L/AC:M/Au:N/C:C/I:C/A:C |
3.4
|
10.0
|
[email protected] |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
[email protected] |
CWE ids for CVE-2021-43037
-
The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.Assigned by: [email protected] (Primary)
References for CVE-2021-43037
-
https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1
Exploit;Third Party Advisory
-
https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961
Vendor Advisory
-
https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2
Exploit;Third Party Advisory
Products affected by CVE-2021-43037
- cpe:2.3:a:kaseya:unitrends_backup:*:*:*:*:*:*:*:*