CVE-2021-26735

The Zscaler Client Connector Installer and Unsintallers for Windows prior to 3.6 had an unquoted search path vulnerability. A local adversary may be able to execute code with SYSTEM privileges.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2021	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*

History

27 Oct 2023, 00:30

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8
CPE		cpe:2.3:a:zscaler:client_connector::::::windows::*
References	~~(MISC) https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2021 -~~	(MISC) https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2021 - Release Notes
First Time		Zscaler client Connector Zscaler
CWE		CWE-428

23 Oct 2023, 14:27

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-10-23 14:15

Updated : 2024-02-28 20:33

NVD link : CVE-2021-26735

Mitre link : CVE-2021-26735

CVE.ORG link : CVE-2021-26735

JSON object : View

Products Affected

zscaler

client_connector

CWE

CWE-428

Unquoted Search Path or Element

CWE-346

Origin Validation Error

{"id": "CVE-2021-26735", "metrics": {"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:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "cve@zscaler.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.8}]}, "published": "2023-10-23T14:15:09.000", "references": [{"url": "https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2021", "tags": ["Release Notes"], "source": "cve@zscaler.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-428"}]}, {"type": "Secondary", "source": "cve@zscaler.com", "description": [{"lang": "en", "value": "CWE-346"}]}], "descriptions": [{"lang": "en", "value": "The Zscaler Client Connector Installer and Unsintallers for Windows prior to 3.6 had an unquoted search path vulnerability. A local adversary may be able to execute code with SYSTEM privileges.\n\n\n\n\n\n"}, {"lang": "es", "value": "Zscaler Client Connector Installer and Unsintallers para Windows anteriores a 3.6 ten\u00edan una vulnerabilidad de ruta de b\u00fasqueda sin comillas. Un adversario local puede ejecutar c\u00f3digo con privilegios de SYSTEM."}], "lastModified": "2023-10-27T00:30:49.677", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*", "vulnerable": true, "matchCriteriaId": "B3A7E628-F74C-46BC-A5E5-25402F2B90D8", "versionEndExcluding": "3.6"}], "operator": "OR"}]}], "sourceIdentifier": "cve@zscaler.com"}