Kaseya Unitrends Backup Appliance prior 10.5.5 vaultServer buffer overflow

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 (≈)
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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.
8.4$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Kaseya Unitrends Backup Appliance. This vulnerability affects unknown code of the component vaultServer. The manipulation results in buffer overflow. This vulnerability is reported as CVE-2021-43042. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Kaseya Unitrends Backup Appliance (Backup Software). Affected is an unknown code block of the component vaultServer. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 12/06/2021. The advisory is available at helpdesk.kaseya.com. This vulnerability is traded as CVE-2021-43042 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

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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-2021-43042 (🔍)
GCVE (CVE): GCVE-0-2021-43042
GCVE (VulDB): GCVE-100-187542

Entryinfo

Created: 12/06/2021 08:00
Updated: 12/09/2021 09:50
Changes: 12/06/2021 08:00 (39), 12/09/2021 09:45 (1), 12/09/2021 09:50 (18)
Complete: 🔍
Cache ID: 216::103

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