CVE-2022-24750: Low privilege user is able to exploit the service and gain SYSTEM privileges in UltraVNC server
UltraVNC is a free and open source remote pc access software. A vulnerability has been found in versions prior to 1.3.8.0 in which the DSM plugin module, which allows a local authenticated user to achieve local privilege escalation (LPE) on a vulnerable system. The vulnerability has been fixed to allow loading of plugins from the installed directory. Affected users should upgrade their UltraVNC to 1.3.8.1. Users unable to upgrade should not install and run UltraVNC server as a service. It is advisable to create a scheduled task on a low privilege account to launch WinVNC.exe instead. There are no known workarounds if winvnc needs to be started as a service.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2022-24750?
CVE-2022-24750 has been classified with a high severity rating due to its potential for local privilege escalation.
How do I fix CVE-2022-24750?
To fix CVE-2022-24750, upgrade UltraVNC to version 1.3.8.1 or later.
Who is affected by CVE-2022-24750?
CVE-2022-24750 affects all versions of UltraVNC prior to 1.3.8.0.
What type of vulnerability is CVE-2022-24750?
CVE-2022-24750 is a local privilege escalation (LPE) vulnerability.
Can CVE-2022-24750 be exploited remotely?
CVE-2022-24750 requires local access by an authenticated user to exploit.