CVE Vulnerability

CVE-2021-43040

An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. The privileged vaultServer could be leveraged to create arbitrary writable files, leading to privilege escalation.

6.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961 Vendor Advisory
https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1 Exploit Third Party Advisory
https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2 Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:kaseya:unitrends_backup:*:*:*:*:*:*:*:*
Information

Published : 2021-12-06 04:15

Updated : 2022-11-28 09:37

NVD link : CVE-2021-43040

Mitre link : CVE-2021-43040

Products Affected
No products.
CWE
NVD-CWE-noinfo