CVE-2020-24574 : Exploit Details and Defense Strategies
Learn about CVE-2020-24574 affecting GOG GALAXY client software, allowing local privilege escalation. Find mitigation steps and long-term security practices.
GOG GALAXY client software through version 2.0.41 is vulnerable to a local privilege escalation attack, allowing an authenticated user to gain SYSTEM privileges by executing arbitrary commands.
Understanding CVE-2020-24574
This CVE describes a security issue in the GOG GALAXY client software that enables an attacker to escalate privileges locally on a Windows system.
What is CVE-2020-24574?
The vulnerability in the GalaxyClientService.exe component of GOG GALAXY up to version 2.0.41 permits an attacker to elevate their privileges from an authenticated user to SYSTEM by executing unauthorized commands through the Windows service. The exploit involves injecting a DLL into GalaxyClient.exe, bypassing the TCP-based 'trusted client' protection mechanism.
The Impact of CVE-2020-24574
The exploitation of this vulnerability can lead to unauthorized access and control over the affected system, potentially resulting in the compromise of sensitive data and system integrity.
Technical Details of CVE-2020-24574
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The flaw in GalaxyClientService.exe allows an attacker to execute arbitrary commands, leading to local privilege escalation from an authenticated user to SYSTEM.
Affected Systems and Versions
- Product: GOG GALAXY
- Versions affected: Up to 2.0.41
Exploitation Mechanism
The attacker can inject a DLL into GalaxyClient.exe, circumventing the TCP-based 'trusted client' protection mechanism and gaining elevated privileges.
Mitigation and Prevention
Protecting systems from CVE-2020-24574 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Update GOG GALAXY to the latest version to patch the vulnerability.
- Monitor system logs for any suspicious activities indicating privilege escalation attempts.
- Implement the principle of least privilege to restrict user permissions.
Long-Term Security Practices
- Conduct regular security audits and vulnerability assessments on software and systems.
- Educate users on safe computing practices and the importance of timely software updates.
Patching and Updates
Ensure timely installation of security patches and updates for all software components to address known vulnerabilities.