Vulnerability-Lookup

CNVD-2021-92821

Vulnerability from cnvd - Published: 2021-12-01

Title

ZTE MF971R Referer认证绕过漏洞

Description

ZTE MF971R是一款Cat 6 LTE移动Wi-Fi路由器，下载速度可达300mbps，上传速度可达50mbps。 ZTE MF971R存在Referer认证绕过漏洞。攻击者可通过向用户发送点击请求利用该漏洞进行非法授权操作。

Severity

中

Patch Name

ZTE MF971R Referer认证绕过漏洞的补丁

Patch Description

ZTE MF971R是一款Cat 6 LTE移动Wi-Fi路由器，下载速度可达300mbps，上传速度可达50mbps。 ZTE MF971R存在Referer认证绕过漏洞。攻击者可通过向用户发送点击请求利用该漏洞进行非法授权操作。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://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1019764

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-21745

Impacted products

Name
['ZTE MF971R BD_ZTE_MF971RV1.0.0B05', 'ZTE MF971R BD_PLKPLMF971R1V1.0.0B06', 'ZTE MF971R BD_MF971R2V1.0.0B03', 'ZTE MF971R BD_ZTE_MF971RS2V1.0.0B03', 'ZTE MF971R BD_ZTE_MF971RSV1.0.0B05']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21745",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-21745"
    }
  },
  "description": "ZTE MF971R\u662f\u4e00\u6b3eCat 6 LTE\u79fb\u52a8Wi-Fi\u8def\u7531\u5668\uff0c\u4e0b\u8f7d\u901f\u5ea6\u53ef\u8fbe300mbps\uff0c\u4e0a\u4f20\u901f\u5ea6\u53ef\u8fbe50mbps\u3002\n\nZTE MF971R\u5b58\u5728Referer\u8ba4\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u7528\u6237\u53d1\u9001\u70b9\u51fb\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u8fdb\u884c\u975e\u6cd5\u6388\u6743\u64cd\u4f5c\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://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1019764",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-92821",
  "openTime": "2021-12-01",
  "patchDescription": "ZTE MF971R\u662f\u4e00\u6b3eCat 6 LTE\u79fb\u52a8Wi-Fi\u8def\u7531\u5668\uff0c\u4e0b\u8f7d\u901f\u5ea6\u53ef\u8fbe300mbps\uff0c\u4e0a\u4f20\u901f\u5ea6\u53ef\u8fbe50mbps\u3002\r\n\r\nZTE MF971R\u5b58\u5728Referer\u8ba4\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u7528\u6237\u53d1\u9001\u70b9\u51fb\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u8fdb\u884c\u975e\u6cd5\u6388\u6743\u64cd\u4f5c\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": "ZTE MF971R Referer\u8ba4\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "ZTE MF971R BD_ZTE_MF971RV1.0.0B05",
      "ZTE MF971R BD_PLKPLMF971R1V1.0.0B06",
      "ZTE MF971R BD_MF971R2V1.0.0B03",
      "ZTE MF971R BD_ZTE_MF971RS2V1.0.0B03",
      "ZTE MF971R BD_ZTE_MF971RSV1.0.0B05"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-21745",
  "serverity": "\u4e2d",
  "submitTime": "2021-10-21",
  "title": "ZTE MF971R Referer\u8ba4\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2021-21745 (GCVE-0-2021-21745)

Vulnerability from cvelistv5 – Published: 2021-10-20 15:20 – Updated: 2024-08-03 18:23

Summary

ZTE MF971R product has a Referer authentication bypass vulnerability. Without CSRF verification, an attackercould use this vulnerability to perform illegal authorization operations by sending a request to the user to click.

Severity

No CVSS data available.

CWE

Referer authentication bypass

Assigner

zte mitre root

References

1 reference

URL	Tags
https://support.zte.com.cn/support/news/LoopholeI…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	MF971R	Affected: BD_ZTE_MF971RV1.0.0B05, BD_PLKPLMF971R1V1.0.0B06, BD_MF971R2V1.0.0B03, BD_ZTE_MF971RS2V1.0.0B03, BD_ZTE_MF971RSV1.0.0B05

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:23:29.386Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "tags": [
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              "x_transferred"
            ],
            "url": "https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1019764"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "MF971R",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "BD_ZTE_MF971RV1.0.0B05, BD_PLKPLMF971R1V1.0.0B06, BD_MF971R2V1.0.0B03, BD_ZTE_MF971RS2V1.0.0B03, BD_ZTE_MF971RSV1.0.0B05"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "ZTE MF971R product has a Referer authentication bypass vulnerability. Without CSRF verification, an attackercould use this vulnerability to perform illegal authorization operations by sending a request to the user to click."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Referer authentication bypass",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-20T15:20:50.000Z",
        "orgId": "6786b568-6808-4982-b61f-398b0d9679eb",
        "shortName": "zte"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1019764"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@zte.com.cn",
          "ID": "CVE-2021-21745",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "MF971R",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "BD_ZTE_MF971RV1.0.0B05, BD_PLKPLMF971R1V1.0.0B06, BD_MF971R2V1.0.0B03, BD_ZTE_MF971RS2V1.0.0B03, BD_ZTE_MF971RSV1.0.0B05"
                          }
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                      }
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                "vendor_name": "n/a"
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        "description": {
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            }
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        },
        "problemtype": {
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                  "value": "Referer authentication bypass"
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        "references": {
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  "cveMetadata": {
    "assignerOrgId": "6786b568-6808-4982-b61f-398b0d9679eb",
    "assignerShortName": "zte",
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    "datePublished": "2021-10-20T15:20:50.000Z",
    "dateReserved": "2021-01-04T00:00:00.000Z",
    "dateUpdated": "2024-08-03T18:23:29.386Z",
    "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.

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Action not permitted

CNVD-2021-92821

CVE-2021-21745 (GCVE-0-2021-21745)

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