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ZscalerCVELIST:CVE-2023-28803

HistoryOct 23, 2023 - 1:32 p.m.

CVE-2023-28803 Traffic being bypassed by ZCC by configuring synthetic IP range as local network

2023-10-2313:32:17

CWE-290

Zscaler

www.cve.org

cve-2023-28803

authentication bypass

traffic bypass

zscaler client connector

windows

ip address spoofing

functionality bypass

5.9 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

0.0004 Low

EPSS

Percentile

10.6%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Client Connector",
    "vendor": "Zscaler",
    "versions": [
      {
        "lessThan": "3.9",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  }
]

References

help.zscaler.com/client-connector/client-connector-app-release-summary-2023

5.9 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

0.0004 Low

EPSS

Percentile

10.6%

JSON

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