CVE-2023-28793

Heap Based Buffer Overflow in Library

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Buffer overflow vulnerability in the signelf library used by Zscaler Client Connector on Linux allows Code Injection. This issue affects Zscaler Client Connector for Linux: before 1.3.1.6.

Una vulnerabilidad de desbordamiento de búfer en la librería signelf utilizada por Zscaler Client Connector en Linux permite la inyección de código. Este problema afecta a Zscaler Client Connector para Linux: versiones anteriores a 1.3.1.6.

*Credits: Paul Gerste & Thomas Chauchefoin, SonarSource

CVSS Scores

NISTv3.1 7.8

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-03-23 CVE Reserved
2023-10-23 CVE Published
2023-10-27 EPSS Updated
2024-10-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-94: Improper Control of Generation of Code ('Code Injection')
CWE-787: Out-of-bounds Write

CAPEC

CAPEC-100: Overflow Buffers

References (1)

URL	Tag	Source
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=Linux&applicable_version=1.3.1&deployment_date=2022-09-19	Release Notes

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"				< 1.3.1.6 Search vendor "Zscaler" for product "Client Connector" and version " < 1.3.1.6"		linux		Affected