CVE-2017-7643 : Security Advisory and Response

A vulnerability in Proxifier for Mac versions prior to 2.19 allows local users to escalate privileges through the KLoader setuid program.

Understanding CVE-2017-7643

Local users can exploit the first parameter of the KLoader setuid program to gain privileges on Proxifier for Mac versions earlier than 2.19.

What is CVE-2017-7643?

CVE-2017-7643 is a privilege escalation vulnerability in Proxifier for Mac that enables local users to elevate their privileges by manipulating the first parameter of the KLoader setuid program.

The Impact of CVE-2017-7643

This vulnerability could be exploited by malicious local users to gain elevated privileges on affected systems, potentially leading to unauthorized access and control.

Technical Details of CVE-2017-7643

Proxifier for Mac versions before 2.19 are susceptible to this privilege escalation issue.

Vulnerability Description

Local users can exploit the first parameter of the KLoader setuid program to escalate their privileges on Proxifier for Mac versions earlier than 2.19.

Affected Systems and Versions

Proxifier for Mac versions prior to 2.19

Exploitation Mechanism

The vulnerability allows local users to manipulate the first parameter of the KLoader setuid program to gain elevated privileges on the affected Proxifier for Mac versions.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2017-7643.

Immediate Steps to Take

Update Proxifier for Mac to version 2.19 or later to mitigate the privilege escalation vulnerability.
Monitor and restrict local user access to sensitive system components.

Long-Term Security Practices

Implement the principle of least privilege to limit user access rights.
Regularly educate users on secure computing practices to prevent unauthorized privilege escalation.

Patching and Updates

Regularly check for security updates and patches for Proxifier for Mac to address known vulnerabilities and enhance system security.