Zscaler Client Connector prior 1.4.0.105 on Linux signature verification

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Zscaler Client Connector on Linux. This affects an unknown function. This manipulation causes signature verification. This vulnerability appears as CVE-2023-28804. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Zscaler Client Connector on Linux. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a signature verification vulnerability. The CWE definition for the vulnerability is CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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

The weakness was presented 10/23/2023. It is possible to read the advisory at help.zscaler.com. This vulnerability is known as CVE-2023-28804 since 03/23/2023. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.4.0.105 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 8.2
CNA Vector (Zscaler, Inc.): 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Client Connector 1.4.0.105

Timelineinfo

03/23/2023 🔍
10/23/2023 +213 days 🔍
10/23/2023 +0 days 🔍
11/12/2023 +20 days 🔍

Sourcesinfo

Advisory: help.zscaler.com
Status: Confirmed

CVE: CVE-2023-28804 (🔍)
GCVE (CVE): GCVE-0-2023-28804
GCVE (VulDB): GCVE-100-243163

Entryinfo

Created: 10/23/2023 16:49
Updated: 11/12/2023 17:51
Changes: 10/23/2023 16:49 (48), 11/12/2023 17:51 (11)
Complete: 🔍
Cache ID: 216::103

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