CVE-2021-27260

This vulnerability allows local attackers to disclose sensitive information on affected installations of Parallels Desktop 16.0.1-48919. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the Toolgate component. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-12068.

CVSS v3 3.2 LOW
CVSS v2.0 2.1 LOW

3.2^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.5 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://kb.parallels.com/en/125013	Release Notes Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-213/	Third Party Advisory VDB Entry
https://kb.parallels.com/en/125013	Release Notes Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-213/	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:parallels:parallels_desktop:16.0.1:*:*:*:*:macos:*:*

History

21 Nov 2024, 05:57

Type	Values Removed	Values Added
References	~~() https://kb.parallels.com/en/125013 - Release Notes, Vendor Advisory~~	() https://kb.parallels.com/en/125013 - Release Notes, Vendor Advisory
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-21-213/ - Third Party Advisory, VDB Entry~~	() https://www.zerodayinitiative.com/advisories/ZDI-21-213/ - Third Party Advisory, VDB Entry

Information

Published : 2021-04-14 16:15

Updated : 2024-11-21 05:57

NVD link : CVE-2021-27260

Mitre link : CVE-2021-27260

CVE.ORG link : CVE-2021-27260

JSON object : View

Products Affected

parallels

parallels_desktop

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2021-27260", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "cvssData": {"scope": "CHANGED", "version": "3.0", "baseScore": 3.2, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 1.5}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 3.2, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 1.5}]}, "published": "2021-04-14T16:15:14.047", "references": [{"url": "https://kb.parallels.com/en/125013", "tags": ["Release Notes", "Vendor Advisory"], "source": "zdi-disclosures@trendmicro.com"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-213/", "tags": ["Third Party Advisory", "VDB Entry"], "source": "zdi-disclosures@trendmicro.com"}, {"url": "https://kb.parallels.com/en/125013", "tags": ["Release Notes", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-213/", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "This vulnerability allows local attackers to disclose sensitive information on affected installations of Parallels Desktop 16.0.1-48919. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the Toolgate component. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-12068."}, {"lang": "es", "value": "Esta vulnerabilidad permite a atacantes locales divulgar informaci\u00f3n confidencial sobre las instalaciones afectadas de Parallels Desktop versi\u00f3n 16.0.1-48919. Un atacante primero debe obtener la capacidad de ejecutar c\u00f3digo muy privilegiado en el sistema invitado de destino para explotar esta vulnerabilidad. El fallo espec\u00edfico se presenta dentro del componente Toolgate. El problema es debido a una falta de comprobaci\u00f3n apropiada de los datos suministrados por el usuario, lo que puede resultar en una lectura m\u00e1s all\u00e1 del final de un b\u00fafer asignado. Un atacante puede aprovechar esto junto con otras vulnerabilidades para escalar privilegios y ejecutar c\u00f3digo arbitrario en el contexto del hypervisor. Era ZDI-CAN-12068"}], "lastModified": "2024-11-21T05:57:42.713", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:parallels:parallels_desktop:16.0.1:*:*:*:*:macos:*:*", "vulnerable": true, "matchCriteriaId": "249D33E0-876B-4964-8CAE-E987F7DCB6C1"}], "operator": "OR"}]}], "sourceIdentifier": "zdi-disclosures@trendmicro.com"}