CVE-2021-42986

NoMachine Enterprise Client is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Client above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

CVSS v3 8.8 HIGH
CVSS v2.0 7.2 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/	Exploit Technical Description Third Party Advisory
https://www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/	Exploit Technical Description Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nomachine:enterprise_client:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:28

Type	Values Removed	Values Added
References	~~() https://www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/ - Exploit, Technical Description, Third Party Advisory~~	() https://www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/ - Exploit, Technical Description, Third Party Advisory

Information

Published : 2021-12-07 20:15

Updated : 2024-11-21 06:28

NVD link : CVE-2021-42986

Mitre link : CVE-2021-42986

CVE.ORG link : CVE-2021-42986

JSON object : View

Products Affected

nomachine

enterprise_client

CWE

CWE-190

Integer Overflow or Wraparound

{"id": "CVE-2021-42986", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.0}]}, "published": "2021-12-07T20:15:07.647", "references": [{"url": "https://www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/", "tags": ["Exploit", "Technical Description", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/", "tags": ["Exploit", "Technical Description", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-190"}]}], "descriptions": [{"lang": "en", "value": "NoMachine Enterprise Client is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Client above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet."}, {"lang": "es", "value": "NoMachine Enterprise Client est\u00e1 afectado por un desbordamiento de enteros. IOCTL Handler 0x22001B en NoMachine Enterprise Client versiones posteriores de 4.0.346 y anteriores a 7.7.4, permite a atacantes locales ejecutar c\u00f3digo arbitrario en modo kernel o causar una denegaci\u00f3n de servicio (corrupci\u00f3n de memoria y bloqueo del Sistema Operativo) por medio de un paquete de petici\u00f3n de E/S especialmente dise\u00f1ado"}], "lastModified": "2024-11-21T06:28:21.790", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nomachine:enterprise_client:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF75E5AA-0858-416A-A1C7-3E04F93E8CD2", "versionEndExcluding": "7.7.4", "versionStartExcluding": "4.0.346"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}