CVE-2022-24750
CVSS V2 High 7.2
CVSS V3 High 7.8
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.
Overview
- CVE ID
- CVE-2022-24750
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-03-10T21:15:14
- Last Modified Date
- 2023-03-01T16:21:31
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:* | 1 | OR | 1.3.8.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 7.2
- Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| 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 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2022-24750 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24750 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:45:17 | Added to TrackCVE | |||
| 2022-12-06 12:01:04 | 2022-03-10T21:15Z | 2022-03-10T21:15:14 | CVE Published Date | updated |
| 2022-12-06 12:01:04 | 2022-03-18T20:06:24 | CVE Modified Date | updated | |
| 2022-12-06 12:01:04 | Analyzed | Vulnerability Status | updated | |
| 2023-01-12 05:13:54 | 2023-01-11T22:15:15 | CVE Modified Date | updated | |
| 2023-01-12 05:13:54 | Analyzed | Modified | Vulnerability Status | updated |
| 2023-01-12 05:13:54 | Weakness Enumeration | update | ||
| 2023-01-12 05:13:55 | 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 1.3.8.0. 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 wincnc needs to be started as a service. | 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. | Description | updated |
| 2023-01-12 17:13:19 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-03-01 17:13:52 | 2023-03-01T16:21:31 | CVE Modified Date | updated | |
| 2023-03-01 17:13:52 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |