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Vulnerability Details :

CVE-2023-28802

Summary
Assigner-Zscaler
Assigner Org ID-73c6f63b-efac-410d-a0a9-569700f85a04
Published At-21 Nov, 2023 | 10:51
Updated At-06 Jan, 2026 | 06:15
Rejected At-
Credits

Disable Zscaler using machine tunnel restart

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Zscaler
Assigner Org ID:73c6f63b-efac-410d-a0a9-569700f85a04
Published At:21 Nov, 2023 | 10:51
Updated At:06 Jan, 2026 | 06:15
Rejected At:
▼CVE Numbering Authority (CNA)
Disable Zscaler using machine tunnel restart

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.

Affected Products
Vendor
Zscaler, Inc.Zscaler
Product
Client Connector
Default Status
unaffected
Versions
Affected
  • From 0 before 4.2.0.149 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-354CWE-354 Improper Validation of Integrity Check Value
Type: CWE
CWE ID: CWE-354
Description: CWE-354 Improper Validation of Integrity Check Value
Metrics
VersionBase scoreBase severityVector
3.14.9MEDIUM
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Version: 3.1
Base score: 4.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-554CAPEC-554 Functionality Bypass
CAPEC ID: CAPEC-554
Description: CAPEC-554 Functionality Bypass
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Simon Cecchini (LRQA Nettitude)
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Windows&applicable_version=4.2
N/A
Hyperlink: https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Windows&applicable_version=4.2
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Windows&applicable_version=4.2
x_transferred
Hyperlink: https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Windows&applicable_version=4.2
Resource:
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@zscaler.com
Published At:21 Nov, 2023 | 11:15
Updated At:06 Jan, 2026 | 07:15

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.14.9MEDIUM
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Primary3.15.4MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Type: Secondary
Version: 3.1
Base score: 4.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Type: Primary
Version: 3.1
Base score: 5.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CPE Matches
Zscaler, Inc.
zscaler
>>client_connector>>Versions before 4.2.0.149(exclusive)
cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*
Weaknesses
CWE IDTypeSource
CWE-354Secondarycve@zscaler.com
CWE-354Primarynvd@nist.gov
CWE ID: CWE-354
Type: Secondary
Source: cve@zscaler.com
CWE ID: CWE-354
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Windows&applicable_version=4.2cve@zscaler.com
Release Notes
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Windows&applicable_version=4.2af854a3a-2127-422b-91ae-364da2661108
Release Notes
Hyperlink: https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Windows&applicable_version=4.2
Source: cve@zscaler.com
Resource:
Release Notes
Hyperlink: https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Windows&applicable_version=4.2
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Release Notes

Change History

0
Information is not available yet

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Details not found