Critical severity · published Dec 6, 2021
CVE-2021-43035
An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5
9.8
CVSS
3.4%
EPSS
No
On KEV
Description
An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. Two unauthenticated SQL injection vulnerabilities were discovered, allowing arbitrary SQL queries to be injected and executed under the postgres superuser account. Remote code execution was possible, leading to full access to the postgres user account.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UB
Unitrends Backup · Kaseya
10.0 before 10.5.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43035
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43035
Vendor Advisory
https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961
Exploit
https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1
Exploit
https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2
More from Unitrends Backup
9.8
CVE-2021-40386
Kaseya Unitrends Client/Agent through 10.5,5 allows remote attackers to execute arbitrary code
9.8
CVE-2021-43044
An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5
9.8
CVE-2021-43042
An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5
9.8
CVE-2021-43036
An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5
9.8
CVE-2021-43033
An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5