CVE Vulnerability

CVE-2022-24750

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.

7.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/ultravnc/UltraVNC/security/advisories/GHSA-3mvp-cp5x-vj5g Third Party Advisory
https://github.com/bowtiejicode/UltraVNC-DSMPlugin-LPE Patch Third Party Advisory
https://github.com/ultravnc/UltraVNC/commit/36a31b37b98f70c1db0428f5ad83170d604fb352 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*
Information

Published : 2022-03-10 09:15

Updated : 2023-01-11 10:15

NVD link : CVE-2022-24750

Mitre link : CVE-2022-24750

Products Affected
No products.
CWE
CWE-269