Home/CVE/An Improper Validation of signature in Zscaler Client Connector on Windows allows an authenticated user to disable anti-
CVE

CVE-2023-28806

An Improper Validation of signature in Zscaler Client Connector on Windows allows an authenticated user to disable anti-

An Improper Validation of signature in Zscaler Client Connector on Windows allows an authenticated user to disable anti-tampering. This issue affects Client Connector on Windows <4.2.0.190.

MEDIUM · CVSS 5.7 EPSS 0.00021
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-347Improper Verification of Cryptographic Signature
CWE-347Improper Verification of Cryptographic Signature
▤

Affected Products & Versions

1
zscaler client connector< 4.2.0.190
▣

Scoring & Timeline

5.7
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 NVD06 Aug 2024 · 04:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
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=4.2.0.190Vendor Advisory
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