CVE-2021-21786

A privilege escalation vulnerability exists in the IOCTL 0x9c406144 handling of IOBit Advanced SystemCare Ultimate 14.2.0.220. A specially crafted I/O request packet (IRP) can lead to increased privileges. An attacker can send a malicious IRP to trigger this vulnerability.

CVSS v3 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1253	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:iobit:advanced_systemcare_ultimate:14.2.0.220:*:*:*:*:*:*:*

History

15 Jul 2021, 18:47

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 4.6 v3 : 7.8
CPE		cpe:2.3:a:iobit:advanced_systemcare_ultimate:14.2.0.220:::::::*
CWE		CWE-269
References	~~(MISC) https://talosintelligence.com/vulnerability_reports/TALOS-2021-1253 -~~	(MISC) https://talosintelligence.com/vulnerability_reports/TALOS-2021-1253 - Exploit, Third Party Advisory, Vendor Advisory

07 Jul 2021, 17:21

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-07-07 17:15

Updated : 2024-02-04 21:47

NVD link : CVE-2021-21786

Mitre link : CVE-2021-21786

CVE.ORG link : CVE-2021-21786

JSON object : View

Products Affected

iobit

advanced_systemcare_ultimate

CWE

CWE-269

Improper Privilege Management

CWE-782

Exposed IOCTL with Insufficient Access Control

{"id": "CVE-2021-21786", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Secondary", "source": "talos-cna@cisco.com", "cvssData": {"scope": "CHANGED", "version": "3.0", "baseScore": 8.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/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}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2021-07-07T17:15:07.920", "references": [{"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1253", "tags": ["Exploit", "Third Party Advisory"], "source": "talos-cna@cisco.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-269"}]}, {"type": "Secondary", "source": "talos-cna@cisco.com", "description": [{"lang": "en", "value": "CWE-782"}]}], "descriptions": [{"lang": "en", "value": "A privilege escalation vulnerability exists in the IOCTL 0x9c406144 handling of IOBit Advanced SystemCare Ultimate 14.2.0.220. A specially crafted I/O request packet (IRP) can lead to increased privileges. An attacker can send a malicious IRP to trigger this vulnerability."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de escalada de privilegios en el manejo de IOCTL 0x9c406144 de IOBit Advanced SystemCare Ultimate versi\u00f3n 14.2.0.220. Un paquete de petici\u00f3n de I/O (IRP) especialmente dise\u00f1ado puede conllevar a un aumento de privilegios. Un atacante puede enviar un IRP malicioso para activar esta vulnerabilidad"}], "lastModified": "2022-07-29T12:58:46.870", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:iobit:advanced_systemcare_ultimate:14.2.0.220:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9B0C837B-7E2B-4AD5-8CFE-EE9CC92D1115"}], "operator": "OR"}]}], "sourceIdentifier": "talos-cna@cisco.com"}