Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Uvnc | Ultravnc | < 1.3.8.1 |
Related Weaknesses (CWE)
References
- https://github.com/bowtiejicode/UltraVNC-DSMPlugin-LPEPatchThird Party Advisory
- https://github.com/ultravnc/UltraVNC/commit/36a31b37b98f70c1db0428f5ad83170d604fPatchThird Party Advisory
- https://github.com/ultravnc/UltraVNC/security/advisories/GHSA-3mvp-cp5x-vj5gThird Party Advisory
- https://github.com/bowtiejicode/UltraVNC-DSMPlugin-LPEPatchThird Party Advisory
- https://github.com/ultravnc/UltraVNC/commit/36a31b37b98f70c1db0428f5ad83170d604fPatchThird Party Advisory
- https://github.com/ultravnc/UltraVNC/security/advisories/GHSA-3mvp-cp5x-vj5gThird Party Advisory
FAQ
What is CVE-2022-24750?
CVE-2022-24750 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ach...
How severe is CVE-2022-24750?
CVE-2022-24750 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-24750?
Check the references section above for vendor advisories and patch information. Affected products include: Uvnc Ultravnc.