VDB-262779 · CVE-2024-23480 · GCVE-0-2024-23480

Zscaler Client Connector up to 4.1 on macOS Fallback signature verification

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in Zscaler Client Connector up to 4.1 on macOS. Affected by this vulnerability is an unknown functionality of the component Fallback. Performing a manipulation results in signature verification. This vulnerability is cataloged as CVE-2024-23480. The attack must be initiated from a local position. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Zscaler Client Connector up to 4.1 on macOS. It has been classified as problematic. This affects some unknown processing of the component Fallback. The manipulation with an unknown input leads to a signature verification vulnerability. CWE is classifying the issue as CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A fallback mechanism in code sign checking on macOS may allow arbitrary code execution. This issue affects Zscaler Client Connector on MacOS prior to 4.2.

It is possible to read the advisory at help.zscaler.com. This vulnerability is uniquely identified as CVE-2024-23480 since 01/17/2024. The exploitability is told to be difficult. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 4.2 eliminates this vulnerability. The upgrade is hosted for download at help.zscaler.com.

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

Productinfo

Vendor

Zscaler

Name

Client Connector

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Zscaler, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Client Connector 4.2

Timelineinfo

01/17/2024 🔍
05/01/2024 +104 days 🔍
05/01/2024 +0 days 🔍
02/17/2026 +657 days 🔍

Sourcesinfo

Advisory: help.zscaler.com
Status: Confirmed

CVE: CVE-2024-23480 (🔍)
GCVE (CVE): GCVE-0-2024-23480
GCVE (VulDB): GCVE-100-262779

Entryinfo

Created: 05/01/2024 20:29
Updated: 02/17/2026 20:46
Changes: 05/01/2024 20:29 (65), 02/17/2026 20:46 (13)
Complete: 🔍
Cache ID: 216::103