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cvelistGitHub_MCVELIST:CVE-2022-24750
HistoryMar 10, 2022 - 12:00 a.m.

CVE-2022-24750 Low privilege user is able to exploit the service and gain SYSTEM privileges in UltraVNC server

2022-03-1000:00:00
CWE-269
GitHub_M
www.cve.org

8.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

8.9 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

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.

CNA Affected

[
  {
    "vendor": "ultravnc",
    "product": "UltraVNC",
    "versions": [
      {
        "version": "< 1.3.8.0",
        "status": "affected"
      }
    ]
  }
]

8.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

8.9 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

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