CVE-2023-41971

Windows ZCC Upgrade DoS And Privilege Escalation Through RPC Control

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

An Improper Link Resolution Before File Access ('Link Following') vulnerability in Zscaler Client Connector on Windows allows a system file to be overwritten.This issue affects Client Connector on Windows: before 3.7.

Una vulnerabilidad de resolución de enlace incorrecta antes del acceso al archivo ("siguiente enlace") en Zscaler Client Connector en Windows permite sobrescribir un archivo del sistema. Este problema afecta a Client Connector en Windows: versiones anteriores a 3.7.

*Credits: LMCO Red Team

CVSS Scores

Zscaler, Inc.v3.1 5.3

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-09-06 CVE Reserved
2024-05-02 CVE Published
2024-05-03 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-59: Improper Link Resolution Before File Access ('Link Following')

CAPEC

CAPEC-73: User-Controlled Filename

References (1)

URL	Tag	Source
https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2021??applicable_category=windows&applicable_version=3.7

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Zscaler Search vendor "Zscaler"		Client Connector Search vendor "Zscaler" for product "Client Connector"				< 3.7 Search vendor "Zscaler" for product "Client Connector" and version " < 3.7"		en		Affected