VDB-187550 · CVE-2021-43041 · GCVE-0-2021-43041

Kaseya Unitrends Backup Appliance prior 10.5.5 HTTP Request format string

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.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Kaseya Unitrends Backup Appliance. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component HTTP Request Handler. Such manipulation leads to format string. This vulnerability is referenced as CVE-2021-43041. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Kaseya Unitrends Backup Appliance (Backup Software). It has been rated as critical. Affected by this issue is some unknown processing of the component HTTP Request Handler. The manipulation with an unknown input leads to a format string vulnerability. Using CWE to declare the problem leads to CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. Impacted is confidentiality, integrity, and availability.

The weakness was published 12/06/2021. The advisory is available at helpdesk.kaseya.com. This vulnerability is handled as CVE-2021-43041 since 10/26/2021. The technical details are unknown and an exploit is not available.

Upgrading to version 10.5.5 eliminates this vulnerability.

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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: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: Format string
CWE: CWE-134 / CWE-119
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-2021-43041 (🔍)
GCVE (CVE): GCVE-0-2021-43041
GCVE (VulDB): GCVE-100-187550

Entryinfo

Created: 12/06/2021 08:10
Updated: 12/09/2021 11:06
Changes: 12/06/2021 08:10 (18), 12/06/2021 08:11 (21), 12/09/2021 11:01 (1), 12/09/2021 11:06 (18)
Complete: 🔍
Cache ID: 216::103