cnvd - cnvd-2021-34721

cnvd-2021-34721

Vulnerability from cnvd

Title: Dell dbutil Driver授权问题漏洞

Description:

DELL Dell dbutil Driver是美国戴尔（DELL）公司的一个应用软件。提供了戴尔公司设备的一个驱动程序。

DBUtil 存在授权问题漏洞，该漏洞源于戴尔dbutil驱动程序dbutil 2 .sys中错误的访问限制。目前没有详细的漏洞细节提供。

Severity: 中

Patch Name: Dell dbutil Driver授权问题漏洞的补丁

Patch Description:

DELL Dell dbutil Driver是美国戴尔（DELL）公司的一个应用软件。提供了戴尔公司设备的一个驱动程序。

DBUtil 存在授权问题漏洞，该漏洞源于戴尔dbutil驱动程序dbutil 2 .sys中错误的访问限制。目前没有详细的漏洞细节提供。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-21551

Impacted products

Name
DELL dbutil_2_3.sys

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21551"
    }
  },
  "description": "DELL Dell dbutil Driver\u662f\u7f8e\u56fd\u6234\u5c14\uff08DELL\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u5e94\u7528\u8f6f\u4ef6\u3002\u63d0\u4f9b\u4e86\u6234\u5c14\u516c\u53f8\u8bbe\u5907\u7684\u4e00\u4e2a\u9a71\u52a8\u7a0b\u5e8f\u3002\n\nDBUtil \u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u6234\u5c14dbutil\u9a71\u52a8\u7a0b\u5e8fdbutil 2 .sys\u4e2d\u9519\u8bef\u7684\u8bbf\u95ee\u9650\u5236\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-34721",
  "openTime": "2021-05-15",
  "patchDescription": "DELL Dell dbutil Driver\u662f\u7f8e\u56fd\u6234\u5c14\uff08DELL\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u5e94\u7528\u8f6f\u4ef6\u3002\u63d0\u4f9b\u4e86\u6234\u5c14\u516c\u53f8\u8bbe\u5907\u7684\u4e00\u4e2a\u9a71\u52a8\u7a0b\u5e8f\u3002\r\n\r\nDBUtil \u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u6234\u5c14dbutil\u9a71\u52a8\u7a0b\u5e8fdbutil 2 .sys\u4e2d\u9519\u8bef\u7684\u8bbf\u95ee\u9650\u5236\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "Dell dbutil Driver\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "DELL dbutil_2_3.sys"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-21551",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-08",
  "title": "Dell dbutil Driver\u6388\u6743\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2021-21551 (GCVE-0-2021-21551)

Vulnerability from cvelistv5

Published

2021-05-04 15:15

Modified

2025-07-30 01:38

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-782 - Exposed IOCTL with Insufficient Access Control

Summary

Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required.

References

▼	URL	Tags
	https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability	x_refsource_MISC
	http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html	x_refsource_MISC
	http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Dell	dbutil	Version: 2.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:16:22.923Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-21551",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-07T12:41:16.782641Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2022-03-31",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21551"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-07-30T01:38:11.931Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "timeline": [
          {
            "lang": "en",
            "time": "2022-03-31T00:00:00+00:00",
            "value": "CVE-2021-21551 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "dbutil",
          "vendor": "Dell",
          "versions": [
            {
              "status": "affected",
              "version": "2.3"
            }
          ]
        }
      ],
      "datePublic": "2021-05-03T18:30:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eDell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required.\u003c/p\u003e"
            }
          ],
          "value": "Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required."
        }
      ],
      "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"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-782",
              "description": "CWE-782: Exposed IOCTL with Insufficient Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-05T05:21:14.199Z",
        "orgId": "c550e75a-17ff-4988-97f0-544cde3820fe",
        "shortName": "dell"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secure@dell.com",
          "DATE_PUBLIC": "2021-05-04",
          "ID": "CVE-2021-21551",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "dbutil",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "=",
                            "version_value": "2.3"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Dell"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required."
            }
          ]
        },
        "impact": {
          "cvss": {
            "baseScore": 8.8,
            "baseSeverity": "High",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-285: Improper Authorization"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability",
              "refsource": "MISC",
              "url": "https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability"
            },
            {
              "name": "http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html"
            },
            {
              "name": "http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "c550e75a-17ff-4988-97f0-544cde3820fe",
    "assignerShortName": "dell",
    "cveId": "CVE-2021-21551",
    "datePublished": "2021-05-04T15:15:21.388Z",
    "dateReserved": "2021-01-04T00:00:00.000Z",
    "dateUpdated": "2025-07-30T01:38:11.931Z",
    "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.

Action not permitted