CVE-2021-43034

An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. A world writable file allowed local users to execute arbitrary code as the user apache, leading to privilege escalation.

CVSS v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

4.6 MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS

0.44% chance of exploitation in the next 30 days, 37th percentile

Published

2021-12-06

Updated

2024-08-04

Proof-of-concept exploits (2)

• https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1
• https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2

References

• CVE Record
• NVD entry

Related

• CVE-2021-43033
• CVE-2021-43035
• CVE-2021-43032
• CVE-2021-43036
• CVE-2021-43009
• CVE-2021-43037