Vulnerability-Lookup

CNVD-2021-94837

Vulnerability from cnvd - Published: 2021-12-07

Title

D-Link DSL-3782缓冲区溢出漏洞（CNVD-2021-94837）

Description

D-Link DSL-3782是中国台湾友讯（D-Link）公司的一款无线路由器。 D-Link DSL-3782 EU v1.01版本和EU v1.03版本中存在缓冲区溢出漏洞，该漏洞源于WEB界面/cgi-bin/New_GUI/Igmp.asp中在内存上执行操作时，未正确验证数据边界。经过身份验证的远程攻击者可以通过HTTP请求在参数“igmpsnoopEnable”中发送一个长字符串来触发该漏洞进而造成拒绝服务攻击。

Severity

中

Patch Name

D-Link DSL-3782缓冲区溢出漏洞（CNVD-2021-94837）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10245

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-40284

Impacted products

Name
['D-Link DSL-3782 EU v1.01', 'D-Link DSL-3782 EU v1.03']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-40284",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-40284"
    }
  },
  "description": "D-Link DSL-3782\u662f\u4e2d\u56fd\u53f0\u6e7e\u53cb\u8baf\uff08D-Link\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u65e0\u7ebf\u8def\u7531\u5668\u3002\n\nD-Link DSL-3782 EU v1.01\u7248\u672c\u548cEU v1.03\u7248\u672c\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eWEB\u754c\u9762/cgi-bin/New_GUI/Igmp.asp\u4e2d\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\u3002\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7HTTP\u8bf7\u6c42\u5728\u53c2\u6570\u201cigmpsnoopEnable\u201d\u4e2d\u53d1\u9001\u4e00\u4e2a\u957f\u5b57\u7b26\u4e32\u6765\u89e6\u53d1\u8be5\u6f0f\u6d1e\u8fdb\u800c\u9020\u6210\u62d2\u7edd\u670d\u52a1\u653b\u51fb\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://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10245",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-94837",
  "openTime": "2021-12-07",
  "patchDescription": "D-Link DSL-3782\u662f\u4e2d\u56fd\u53f0\u6e7e\u53cb\u8baf\uff08D-Link\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u65e0\u7ebf\u8def\u7531\u5668\u3002\r\n\r\nD-Link DSL-3782 EU v1.01\u7248\u672c\u548cEU v1.03\u7248\u672c\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eWEB\u754c\u9762/cgi-bin/New_GUI/Igmp.asp\u4e2d\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\u3002\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7HTTP\u8bf7\u6c42\u5728\u53c2\u6570\u201cigmpsnoopEnable\u201d\u4e2d\u53d1\u9001\u4e00\u4e2a\u957f\u5b57\u7b26\u4e32\u6765\u89e6\u53d1\u8be5\u6f0f\u6d1e\u8fdb\u800c\u9020\u6210\u62d2\u7edd\u670d\u52a1\u653b\u51fb\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 DSL-3782\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-94837\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "D-Link DSL-3782 EU v1.01",
      "D-Link DSL-3782 EU v1.03"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-40284",
  "serverity": "\u4e2d",
  "submitTime": "2021-09-12",
  "title": "D-Link DSL-3782\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-94837\uff09"
}

CVE-2021-40284 (GCVE-0-2021-40284)

Vulnerability from cvelistv5 – Published: 2021-09-09 16:18 – Updated: 2024-08-04 02:27

Summary

D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface "/cgi-bin/New_GUI/Igmp.asp". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter 'igmpsnoopEnable' via an HTTP request.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2291 records in the last 180 days details

References

2 references

URL	Tags
https://www.dlink.com/en/security-bulletin/	x_refsource_MISC
https://supportannouncement.us.dlink.com/announce…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T02:27:31.875Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.dlink.com/en/security-bulletin/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10245"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface \"/cgi-bin/New_GUI/Igmp.asp\". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter \u0027igmpsnoopEnable\u0027 via an HTTP request."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-09T16:18:25.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.dlink.com/en/security-bulletin/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10245"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-40284",
          "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": "D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface \"/cgi-bin/New_GUI/Igmp.asp\". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter \u0027igmpsnoopEnable\u0027 via an HTTP request."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.dlink.com/en/security-bulletin/",
              "refsource": "MISC",
              "url": "https://www.dlink.com/en/security-bulletin/"
            },
            {
              "name": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10245",
              "refsource": "MISC",
              "url": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10245"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-40284",
    "datePublished": "2021-09-09T16:18:25.000Z",
    "dateReserved": "2021-08-30T00:00:00.000Z",
    "dateUpdated": "2024-08-04T02:27:31.875Z",
    "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.

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.

Action not permitted

CNVD-2021-94837

CVE-2021-40284 (GCVE-0-2021-40284)

Tags

Sightings

Nomenclature

Related by attack behaviour