VDB-187538 · CVE-2021-43033 · GCVE-0-2021-43033

Kaseya Unitrends Backup Appliance prior 10.5.5 bpserverd Daemon input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.1	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as very critical has been discovered in Kaseya Unitrends Backup Appliance. Affected is an unknown function of the component bpserverd Daemon. Such manipulation leads to an unknown weakness. This vulnerability is listed as CVE-2021-43033. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Kaseya Unitrends Backup Appliance (Backup Software) and classified as very critical. Affected by this issue is an unknown functionality of the component bpserverd Daemon. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability.

The weakness was presented 12/06/2021. The advisory is available at helpdesk.kaseya.com. This vulnerability is handled as CVE-2021-43033 since 10/26/2021. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 12/09/2021).

Upgrading to version 10.5.5 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Backup Software

Vendor

Kaseya

Name

Unitrends Backup Appliance

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 9.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Unitrends Backup Appliance 10.5.5

Timelineinfo

10/26/2021 🔍
12/06/2021 +41 days 🔍
12/06/2021 +0 days 🔍
12/09/2021 +3 days 🔍

Sourcesinfo

Advisory: helpdesk.kaseya.com
Status: Confirmed

CVE: CVE-2021-43033 (🔍)
GCVE (CVE): GCVE-0-2021-43033
GCVE (VulDB): GCVE-100-187538

Entryinfo

Created: 12/06/2021 07:54
Updated: 12/09/2021 09:29
Changes: 12/06/2021 07:54 (37), 12/09/2021 09:28 (1), 12/09/2021 09:29 (20)
Complete: 🔍
Cache ID: 216::103