Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2021-43034 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961 CVEVendor Advisory
https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1 CVEExploitThird Party Advisory
https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2 CVEExploitThird Party Advisory
https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961 [email protected]Vendor Advisory
https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1 [email protected]ExploitThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-732Incorrect Permission Assignment for Critical Resource[email protected]

Affected Products

ProductVersions
kaseya unitrends backup
>= 10.0, < 10.5.5

CPE

  • cpe:2.3:a:kaseya:unitrends_backup:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-43034
NVD Published Date:
Dec 6, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-43034 Details - Not Deferred