Home/CVE/An Improper Validation of Integrity Check Value in Zscaler Client Connector on Windows allows an authenticated user to d
CVE

CVE-2023-28802

An Improper Validation of Integrity Check Value in Zscaler Client Connector on Windows allows an authenticated user to d

An Improper Validation of Integrity Check Value in Zscaler Client Connector on Windows allows an authenticated user to disable ZIA/ZPA by interrupting the service restart from Zscaler Diagnostics. This issue affects Client Connector: before 4.2.0.149.

MEDIUM · CVSS 4.9 EPSS 0.00088
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-354Improper Validation of Integrity Check Value
CWE-354Improper Validation of Integrity Check Value
▤

Affected Products & Versions

1
zscaler client connector< 4.2.0.149
▣

Scoring & Timeline

4.9
MEDIUM · CVSS v3.1 · cve@zscaler.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Nov 2023 · 11:15 AM
CVSS VectorCVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Windows&applicable_version=4.2Release Notes
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