CVE-2023-28803

An authentication bypass by spoofing of a device with a synthetic IP address is possible in Zscaler Client Connector on Windows, allowing a functionality bypass. This issue affects Client Connector: before 3.9.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023	Release Notes

Configurations

Configuration 1 (hide)

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

History

27 Oct 2023, 00:42

Type	Values Removed	Values Added
References	~~(MISC) https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023 -~~	(MISC) https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023 - Release Notes
CWE		CWE-290
First Time		Zscaler client Connector Zscaler
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5
CPE		cpe:2.3:a:zscaler:client_connector::::::windows::*

23 Oct 2023, 14:27

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-10-23 14:15

Updated : 2023-12-10 15:14

NVD link : CVE-2023-28803

Mitre link : CVE-2023-28803

CVE.ORG link : CVE-2023-28803

JSON object : View

Products Affected

zscaler

client_connector

CWE

CWE-290

Authentication Bypass by Spoofing

{"id": "CVE-2023-28803", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "cve@zscaler.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.2, "exploitabilityScore": 1.6}]}, "published": "2023-10-23T14:15:09.627", "references": [{"url": "https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023", "tags": ["Release Notes"], "source": "cve@zscaler.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-290"}]}, {"type": "Secondary", "source": "cve@zscaler.com", "description": [{"lang": "en", "value": "CWE-290"}]}], "descriptions": [{"lang": "en", "value": "An authentication bypass by spoofing of a device with a synthetic IP address is possible in Zscaler Client Connector on Windows, allowing a functionality bypass. This issue affects Client Connector: before 3.9.\n\n"}, {"lang": "es", "value": "Es posible omitir la autenticaci\u00f3n mediante la suplantaci\u00f3n de un dispositivo con una direcci\u00f3n IP sint\u00e9tica en Zscaler Client Connector en Windows, lo que permite omitir la funcionalidad. Este problema afecta a Client Connector: versiones anteriores a 3.9."}], "lastModified": "2023-10-27T00:42:04.713", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*", "vulnerable": true, "matchCriteriaId": "9B8D07A9-4498-4AFE-BE03-7241D844ED24", "versionEndExcluding": "3.9"}], "operator": "OR"}]}], "sourceIdentifier": "cve@zscaler.com"}