CVE-2022-24750 : What You Need to Know
Learn about CVE-2022-24750, a vulnerability in UltraVNC server versions prior to 1.3.8.0 that enables a low privilege user to exploit the service and gain SYSTEM privileges. Find out about the impact, technical details, and mitigation steps.
A vulnerability in UltraVNC server versions prior to 1.3.8.0 allows a low privilege user to exploit the service and gain SYSTEM privileges. Here's what you need to know about CVE-2022-24750.
Understanding CVE-2022-24750
UltraVNC is a free and open-source remote PC access software. The vulnerability lies in the DSM plugin module, enabling a local authenticated user to achieve local privilege escalation (LPE) on a vulnerable system.
What is CVE-2022-24750?
The vulnerability in UltraVNC server versions prior to 1.3.8.0 allows a low privilege user to exploit the service and gain SYSTEM privileges.
The Impact of CVE-2022-24750
The vulnerability could lead to a local privilege escalation scenario on affected systems, potentially allowing unauthorized users to gain elevated privileges.
Technical Details of CVE-2022-24750
Here are the technical details regarding the CVE-2022-24750 vulnerability.
Vulnerability Description
The vulnerability in the DSM plugin module of UltraVNC server versions prior to 1.3.8.0 allows a local authenticated user to achieve local privilege escalation (LPE) on the system.
Affected Systems and Versions
Vendor: Ultravnc Product: UltraVNC Affected Versions: < 1.3.8.0
Exploitation Mechanism
The vulnerability can be exploited by a low privilege user to escalate their privileges on the system, potentially leading to unauthorized access.
Mitigation and Prevention
Understanding how to mitigate and prevent the exploitation of CVE-2022-24750 is crucial for maintaining system security.
Immediate Steps to Take
Affected users are advised to upgrade their UltraVNC to version 1.3.8.1 to remediate the vulnerability. Alternatively, users unable to upgrade should avoid installing and running UltraVNC server as a service.
Long-Term Security Practices
To enhance system security, it is recommended to create a scheduled task on a low privilege account to launch WinVNC.exe instead of running the service.
Patching and Updates
Ensure regular patching and updates for UltraVNC to stay protected from known vulnerabilities.