cnvd - cnvd-2022-22270

cnvd-2022-22270

Vulnerability from cnvd

Title: UltraVNC存在未明漏洞

Description:

UltraVNC是一款用于Windows平台的开源远程终端控制软件。

UltraVNC 1.3.8.0 之前的版本的DSM插件存在安全漏洞，本地经过身份验证的攻击者可利用该漏洞在易受攻击的系统上实现本地权限提升 (LPE)。

Severity: 高

Patch Name: UltraVNC存在未明漏洞的补丁

Patch Description:

UltraVNC是一款用于Windows平台的开源远程终端控制软件。

UltraVNC 1.3.8.0 之前的版本的DSM插件存在安全漏洞，本地经过身份验证的攻击者可利用该漏洞在易受攻击的系统上实现本地权限提升 (LPE)。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/ultravnc/UltraVNC/security/advisories/GHSA-3mvp-cp5x-vj5g

Reference: https://cxsecurity.com/cveshow/CVE-2022-24750/

Impacted products

Name
UltraVNC UltraVNC <1.3.8.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-24750"
    }
  },
  "description": "UltraVNC\u662f\u4e00\u6b3e\u7528\u4e8eWindows\u5e73\u53f0\u7684\u5f00\u6e90\u8fdc\u7a0b\u7ec8\u7aef\u63a7\u5236\u8f6f\u4ef6\u3002\n\nUltraVNC 1.3.8.0 \u4e4b\u524d\u7684\u7248\u672c\u7684DSM\u63d2\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u672c\u5730\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u6613\u53d7\u653b\u51fb\u7684\u7cfb\u7edf\u4e0a\u5b9e\u73b0\u672c\u5730\u6743\u9650\u63d0\u5347 (LPE)\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/ultravnc/UltraVNC/security/advisories/GHSA-3mvp-cp5x-vj5g",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-22270",
  "openTime": "2022-03-24",
  "patchDescription": "UltraVNC\u662f\u4e00\u6b3e\u7528\u4e8eWindows\u5e73\u53f0\u7684\u5f00\u6e90\u8fdc\u7a0b\u7ec8\u7aef\u63a7\u5236\u8f6f\u4ef6\u3002\r\n\r\nUltraVNC 1.3.8.0 \u4e4b\u524d\u7684\u7248\u672c\u7684DSM\u63d2\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u672c\u5730\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u6613\u53d7\u653b\u51fb\u7684\u7cfb\u7edf\u4e0a\u5b9e\u73b0\u672c\u5730\u6743\u9650\u63d0\u5347 (LPE)\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "UltraVNC\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "UltraVNC UltraVNC \u003c1.3.8.0"
  },
  "referenceLink": "https://cxsecurity.com/cveshow/CVE-2022-24750/",
  "serverity": "\u9ad8",
  "submitTime": "2022-03-14",
  "title": "UltraVNC\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2022-24750 (GCVE-0-2022-24750)

Vulnerability from cvelistv5

Published

2022-03-10 00:00

Modified

2025-04-23 18:55

Severity ?

8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CWE

CWE-269 - Improper Privilege Management

Summary

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.

References

▼	URL	Tags
	https://github.com/ultravnc/UltraVNC/security/advisories/GHSA-3mvp-cp5x-vj5g
	https://github.com/ultravnc/UltraVNC/commit/36a31b37b98f70c1db0428f5ad83170d604fb352
	https://github.com/bowtiejicode/UltraVNC-DSMPlugin-LPE

Impacted products

	Vendor	Product	Version
	ultravnc	UltraVNC	Version: < 1.3.8.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T04:20:50.151Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/ultravnc/UltraVNC/security/advisories/GHSA-3mvp-cp5x-vj5g"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/ultravnc/UltraVNC/commit/36a31b37b98f70c1db0428f5ad83170d604fb352"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/bowtiejicode/UltraVNC-DSMPlugin-LPE"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-24750",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T15:55:15.823869Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T18:55:50.634Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "UltraVNC",
          "vendor": "ultravnc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.3.8.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-269",
              "description": "CWE-269: Improper Privilege Management",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-01-11T00:00:00.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "url": "https://github.com/ultravnc/UltraVNC/security/advisories/GHSA-3mvp-cp5x-vj5g"
        },
        {
          "url": "https://github.com/ultravnc/UltraVNC/commit/36a31b37b98f70c1db0428f5ad83170d604fb352"
        },
        {
          "url": "https://github.com/bowtiejicode/UltraVNC-DSMPlugin-LPE"
        }
      ],
      "source": {
        "advisory": "GHSA-3mvp-cp5x-vj5g",
        "discovery": "UNKNOWN"
      },
      "title": "Low privilege user is able to exploit the service and gain SYSTEM privileges in UltraVNC server"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-24750",
    "datePublished": "2022-03-10T00:00:00.000Z",
    "dateReserved": "2022-02-10T00:00:00.000Z",
    "dateUpdated": "2025-04-23T18:55:50.634Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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