Vulnerability-Lookup

CNVD-2021-91639

Vulnerability from cnvd - Published: 2021-11-26

Title

Realtek RtsUpx Usb Utility Driver访问控制错误漏洞（CNVD-2021-91639）

Description

Realtek RtsUpx Usb Utility Driver是中国瑞昱半导体（Realtek）公司的一个 Usb 实用程序驱动器。 Realtek RtsUpx USB Utility Driver for Camera Hub Audio 中存在访问控制错误漏洞，该漏洞源于产品未对设备的IO控制包进行权限检测。攻击者可通过该漏洞导致权限升级、拒绝服务、代码执行以及信息泄露。

Severity

高

Patch Name

Realtek RtsUpx Usb Utility Driver访问控制错误漏洞（CNVD-2021-91639）的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://www.realtek.com

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-36923

Impacted products

Name
Realtek Realtek RtsUpx USB Utility Driver for Camera Hub Audio <=1.14.0.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-36923"
    }
  },
  "description": "Realtek RtsUpx Usb Utility Driver\u662f\u4e2d\u56fd\u745e\u6631\u534a\u5bfc\u4f53\uff08Realtek\uff09\u516c\u53f8\u7684\u4e00\u4e2a Usb \u5b9e\u7528\u7a0b\u5e8f\u9a71\u52a8\u5668\u3002\n\nRealtek RtsUpx USB Utility Driver for Camera Hub Audio \u4e2d\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ea7\u54c1\u672a\u5bf9\u8bbe\u5907\u7684IO\u63a7\u5236\u5305\u8fdb\u884c\u6743\u9650\u68c0\u6d4b\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u6743\u9650\u5347\u7ea7\u3001\u62d2\u7edd\u670d\u52a1\u3001\u4ee3\u7801\u6267\u884c\u4ee5\u53ca\u4fe1\u606f\u6cc4\u9732\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.realtek.com",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-91639",
  "openTime": "2021-11-26",
  "patchDescription": "Realtek RtsUpx Usb Utility Driver\u662f\u4e2d\u56fd\u745e\u6631\u534a\u5bfc\u4f53\uff08Realtek\uff09\u516c\u53f8\u7684\u4e00\u4e2a Usb \u5b9e\u7528\u7a0b\u5e8f\u9a71\u52a8\u5668\u3002\r\n\r\nRealtek RtsUpx USB Utility Driver for Camera Hub Audio \u4e2d\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ea7\u54c1\u672a\u5bf9\u8bbe\u5907\u7684IO\u63a7\u5236\u5305\u8fdb\u884c\u6743\u9650\u68c0\u6d4b\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u6743\u9650\u5347\u7ea7\u3001\u62d2\u7edd\u670d\u52a1\u3001\u4ee3\u7801\u6267\u884c\u4ee5\u53ca\u4fe1\u606f\u6cc4\u9732\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": "Realtek RtsUpx Usb Utility Driver\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-91639\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Realtek Realtek RtsUpx USB Utility Driver for Camera Hub Audio  \u003c=1.14.0.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-36923",
  "serverity": "\u9ad8",
  "submitTime": "2021-11-03",
  "title": "Realtek RtsUpx Usb Utility Driver\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-91639\uff09"
}

CVE-2021-36923 (GCVE-0-2021-36923)

Vulnerability from cvelistv5 – Published: 2021-11-02 12:37 – Updated: 2024-08-04 01:09

Summary

RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio through 1.14.0.0 allows local low-privileged users to achieve unauthorized access to USB device privileged IN and OUT instructions (leading to Escalation of Privileges, Denial of Service, Code Execution, and Information Disclosure) via a crafted Device IO Control packet to a device.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://www.sentinelone.com/resources/category/report/	x_refsource_MISC
https://www.realtek.com/images/safe-report/Realte…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T01:09:06.211Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.sentinelone.com/resources/category/report/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.realtek.com/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio through 1.14.0.0 allows local low-privileged users to achieve unauthorized access to USB device privileged IN and OUT instructions (leading to Escalation of Privileges, Denial of Service, Code Execution, and Information Disclosure) via a crafted Device IO Control packet to a device."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-11-02T12:37:07.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.sentinelone.com/resources/category/report/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.realtek.com/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-36923",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio through 1.14.0.0 allows local low-privileged users to achieve unauthorized access to USB device privileged IN and OUT instructions (leading to Escalation of Privileges, Denial of Service, Code Execution, and Information Disclosure) via a crafted Device IO Control packet to a device."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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                  "value": "n/a"
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        },
        "references": {
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            {
              "name": "https://www.sentinelone.com/resources/category/report/",
              "refsource": "MISC",
              "url": "https://www.sentinelone.com/resources/category/report/"
            },
            {
              "name": "https://www.realtek.com/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf",
              "refsource": "MISC",
              "url": "https://www.realtek.com/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-36923",
    "datePublished": "2021-11-02T12:37:07.000Z",
    "dateReserved": "2021-07-19T00:00:00.000Z",
    "dateUpdated": "2024-08-04T01:09:06.211Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.