CVE-2023-28795 : What You Need to Know

This CVE-2023-28795 was assigned by Zscaler and published on October 23, 2023. It pertains to an Origin Validation Error vulnerability found in Zscaler Client Connector on Linux, potentially allowing the Inclusion of Code in Existing Process.

Understanding CVE-2023-28795

This section delves into the details involving CVE-2023-28795.

What is CVE-2023-28795?

The CVE-2023-28795 vulnerability involves an Origin Validation Error within the Zscaler Client Connector on Linux. It enables an attacker to include code in an existing process. This vulnerability specifically impacts Zscaler Client Connector versions prior to 1.3.1.6.

The Impact of CVE-2023-28795

The CAPEC-640 Inclusion of Code in Existing Process describes the potential impact of the CVE-2023-28795 vulnerability. With a CVSS base score of 7.8, the severity of this vulnerability is classified as high. It poses risks to the confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2023-28795

This section outlines the technical aspects of CVE-2023-28795 and how it can impact systems.

Vulnerability Description

The Origin Validation Error vulnerability found in Zscaler Client Connector on Linux allows threat actors to inject code into an existing process, exploiting systems running versions prior to 1.3.1.6.

Affected Systems and Versions

Zscaler Client Connector for Linux versions before 1.3.1.6 are affected by this vulnerability. Systems with these versions are at risk of unauthorized code inclusion and potential exploitation.

Exploitation Mechanism

The vulnerability leverages an Origin Validation Error within the Zscaler Client Connector on Linux to bypass client IPC validation, enabling threat actors to include malicious code in running processes.

Mitigation and Prevention

It is crucial to take immediate action to address and prevent the exploitation of CVE-2023-28795.

Immediate Steps to Take

Update Zscaler Client Connector for Linux to version 1.3.1.6 or higher to mitigate the Origin Validation Error vulnerability.
Keep systems and software up to date with the latest security patches to prevent potential code inclusion attacks.

Long-Term Security Practices

Implement robust security measures, such as network segmentation and access controls, to limit the impact of code inclusion vulnerabilities.
Conduct regular security assessments and code reviews to identify and address potential security gaps within applications and processes.

Patching and Updates

Regularly monitor for security updates from Zscaler and apply patches promptly to ensure the protection of systems against known vulnerabilities like CVE-2023-28795.