Vulnerability-Lookup

CNVD-2021-94832

Vulnerability from cnvd - Published: 2021-12-07

Title

D-LINK DIR-3040信息泄露漏洞（CNVD-2021-94832）

Description

D-LINK DIR-3040是中国台湾友讯（D-Link）公司的一个路由器。提供连接网络的功能。 D-LINK DIR-3040 1.13B03的WiFi Smart Mesh功能存在信息泄露漏洞。攻击者可借助特制的网络请求利用该漏洞导致命令执行。

Severity

高

Patch Name

D-LINK DIR-3040信息泄露漏洞（CNVD-2021-94832）的补丁

Patch Description

D-LINK DIR-3040是中国台湾友讯（D-Link）公司的一个路由器。提供连接网络的功能。 D-LINK DIR-3040 1.13B03的WiFi Smart Mesh功能存在信息泄露漏洞。攻击者可借助特制的网络请求利用该漏洞导致命令执行。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

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://talosintelligence.com/vulnerability_reports/TALOS-2021-1361

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-21913

Impacted products

Name
D-Link DIR-3040 1.13B03

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21913",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-21913"
    }
  },
  "description": "D-LINK DIR-3040\u662f\u4e2d\u56fd\u53f0\u6e7e\u53cb\u8baf\uff08D-Link\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u8def\u7531\u5668\u3002\u63d0\u4f9b\u8fde\u63a5\u7f51\u7edc\u7684\u529f\u80fd\u3002\n\nD-LINK DIR-3040 1.13B03\u7684WiFi Smart Mesh\u529f\u80fd\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u7f51\u7edc\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u547d\u4ee4\u6267\u884c\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttps://talosintelligence.com/vulnerability_reports/TALOS-2021-1361",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-94832",
  "openTime": "2021-12-07",
  "patchDescription": "D-LINK DIR-3040\u662f\u4e2d\u56fd\u53f0\u6e7e\u53cb\u8baf\uff08D-Link\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u8def\u7531\u5668\u3002\u63d0\u4f9b\u8fde\u63a5\u7f51\u7edc\u7684\u529f\u80fd\u3002\r\n\r\nD-LINK DIR-3040 1.13B03\u7684WiFi Smart Mesh\u529f\u80fd\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u7f51\u7edc\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u547d\u4ee4\u6267\u884c\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": "D-LINK DIR-3040\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2021-94832\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "D-Link DIR-3040 1.13B03"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-21913",
  "serverity": "\u9ad8",
  "submitTime": "2021-09-26",
  "title": "D-LINK DIR-3040\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2021-94832\uff09"
}

CVE-2021-21913 (GCVE-0-2021-21913)

Vulnerability from cvelistv5 – Published: 2021-09-23 14:48 – Updated: 2024-08-03 18:30

Summary

An information disclosure vulnerability exists in the WiFi Smart Mesh functionality of D-LINK DIR-3040 1.13B03. A specially-crafted network request can lead to command execution. An attacker can connect to the MQTT service to trigger this vulnerability.

Severity

10 (Critical)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CWE

CWE-798 - Use of Hard-coded Credentials

Assigner

talos mitre root

References

1 reference

URL	Tags
https://talosintelligence.com/vulnerability_repor…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	D-Link	Affected: D-LINK DIR-3040 1.13B03

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:30:22.881Z",
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            "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1361"
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        ],
        "title": "CVE Program Container"
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    "cna": {
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          "product": "D-Link",
          "vendor": "n/a",
          "versions": [
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              "version": "D-LINK DIR-3040 1.13B03"
            }
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        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
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          }
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          ],
          "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1361"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "talos-cna@cisco.com",
          "ID": "CVE-2021-21913",
          "STATE": "PUBLIC"
        },
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                    {
                      "product_name": "D-Link",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "D-LINK DIR-3040 1.13B03"
                          }
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            }
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  "cveMetadata": {
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    "datePublished": "2021-09-23T14:48:37.000Z",
    "dateReserved": "2021-01-04T00:00:00.000Z",
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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.