CVE-2020-12431 Explained : Impact and Mitigation
Learn about CVE-2020-12431, a Windows privilege escalation issue in Splashtop Software Updater before 1.5.6.16, allowing local privilege escalation to NT AUTHORITY/SYSTEM. Find mitigation steps and affected versions here.
A Windows privilege change issue in Splashtop Software Updater before 1.5.6.16 allows local privilege escalation to NT AUTHORITY/SYSTEM, affecting Splashtop Streamer and Splashtop Business.
Understanding CVE-2020-12431
This CVE identifies a vulnerability in Splashtop Software Updater that can lead to local privilege escalation on Windows systems.
What is CVE-2020-12431?
The vulnerability arises from insecure permissions on the configuration file and named pipe, enabling unauthorized users to elevate their privileges to NT AUTHORITY/SYSTEM by manipulating permissions on Splashtop files and directories, potentially leading to DLL hijacking.
The Impact of CVE-2020-12431
The vulnerability poses a significant security risk as it allows attackers to gain elevated privileges on affected systems, potentially leading to unauthorized access and control.
Technical Details of CVE-2020-12431
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The issue stems from insecure permissions on the configuration file and named pipe in Splashtop Software Updater before version 1.5.6.16, facilitating local privilege escalation.
Affected Systems and Versions
- Splashtop Software Updater before version 1.5.6.16
- Splashtop Streamer before version 3.3.8.0
- Splashtop Business before version 3.3.8.0
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating permissions on Splashtop files and directories, leading to DLL hijacking and potential privilege escalation to NT AUTHORITY/SYSTEM.
Mitigation and Prevention
Protecting systems from CVE-2020-12431 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Splashtop Software Updater to version 1.5.6.16 or later.
- Monitor system logs for any suspicious activities related to file permissions.
- Restrict access to sensitive directories and files.
Long-Term Security Practices
- Implement the principle of least privilege to restrict user permissions.
- Regularly audit and review file and directory permissions to ensure security.
Patching and Updates
- Apply security patches and updates provided by Splashtop to address the vulnerability and enhance system security.