CVE-2023-28804

Linux ZCC allows unsigned updates, allowing elevated Code Execution

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Published Oct 23, 2023 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed

Description

An Improper Verification of Cryptographic Signature vulnerability in Zscaler Client Connector on Linux allows replacing binaries.This issue affects Linux Client Connector: before 1.4.0.105

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Zscaler

Client Connector

unaffected

Version	Status	Constraints
`0`	affected	< 1.4.0.105

Configuration 1 [-]

cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:linux:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-32439	An Improper Verification of Cryptographic Signature vulnerability in Zscaler Client Connector on Linux allows replacing binaries.This issue affects Linux Client Connector: before 1.4.0.105

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.285% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact partial

References

Link	Providers
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023

History

Oct 17, 2024 4:15 PM Affected versions updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
CPEs		cpe:2.3:a:zscaler:client_connector::::::::
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Zscaler Client Connector

Weaknesses

CWE-347

Sources

CVE record Updated: Oct 17, 2024, 3:09 PM

Status: PUBLISHED
Assigner: Zscaler
Published: Oct 23, 2023, 1:33 PM
Updated: Oct 17, 2024, 3:09 PM
Reserved: Mar 23, 2023, 6:29 PM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 1:51 PM

Updated: Aug 2, 2024, 1:51 PM

NVD Updated: Jun 17, 2026, 5:48 AM

Status: Modified
Published: Oct 23, 2023, 2:15 PM
Modified: Jun 17, 2026, 5:48 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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