title: Traffic being bypassed by ZCC by configuring synthetic IP range as local network
description: 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.
problem types: CWE-290 Authentication Bypass by Spoofing
affected:
{
defaultStatus: unaffected
product: Client Connector
vendor: Zscaler
versions:
lessThan: 3.9, status: affected, version: 0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: ADJACENT_NETWORK
availabilityImpact: NONE
baseScore: 5.9
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL