Vulnerability-Lookup

CNVD-2021-21933

Vulnerability from cnvd - Published: 2021-03-24

Title

DrayTek Vigor3900、Vigor2960和Vigor300B堆栈缓冲区溢出漏洞

Description

DrayTek Vigor3900等都是中国台湾居易科技（DrayTek）公司的产品。DrayTek Vigor3900是一款宽带路由器/VPN网关设备。Vigor2960是一款负载平衡路由器和VPN网关设备。Vigor300B是一款负载均衡路由器。 DrayTek Vigor3900、Vigor2960和Vigor300B中存在堆栈缓冲区溢出漏洞。攻击者可通过发送较长的参数利用该漏洞执行任意代码或造成拒绝服务。

Severity

高

Patch Name

DrayTek Vigor3900、Vigor2960和Vigor300B堆栈缓冲区溢出漏洞的补丁

Patch Description

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.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-stack-based-buffer-overflow-vulnerability-(cve-2020-14473)

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-14473

Impacted products

Name
['DrayTek Vigor3900 <1.5.1.1', 'DrayTek Vigor2960 <1.5.1.1', 'DrayTek Vigor300B <1.5.1.1']

Show details on source website

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-14473"
    }
  },
  "description": "DrayTek Vigor3900\u7b49\u90fd\u662f\u4e2d\u56fd\u53f0\u6e7e\u5c45\u6613\u79d1\u6280\uff08DrayTek\uff09\u516c\u53f8\u7684\u4ea7\u54c1\u3002DrayTek Vigor3900\u662f\u4e00\u6b3e\u5bbd\u5e26\u8def\u7531\u5668/VPN\u7f51\u5173\u8bbe\u5907\u3002Vigor2960\u662f\u4e00\u6b3e\u8d1f\u8f7d\u5e73\u8861\u8def\u7531\u5668\u548cVPN\u7f51\u5173\u8bbe\u5907\u3002Vigor300B\u662f\u4e00\u6b3e\u8d1f\u8f7d\u5747\u8861\u8def\u7531\u5668\u3002\n\nDrayTek Vigor3900\u3001Vigor2960\u548cVigor300B\u4e2d\u5b58\u5728\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u8f83\u957f\u7684\u53c2\u6570\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u4ee3\u7801\u6216\u9020\u6210\u62d2\u7edd\u670d\u52a1\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.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-stack-based-buffer-overflow-vulnerability-(cve-2020-14473)",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-21933",
  "openTime": "2021-03-24",
  "patchDescription": "DrayTek Vigor3900\u7b49\u90fd\u662f\u4e2d\u56fd\u53f0\u6e7e\u5c45\u6613\u79d1\u6280\uff08DrayTek\uff09\u516c\u53f8\u7684\u4ea7\u54c1\u3002DrayTek Vigor3900\u662f\u4e00\u6b3e\u5bbd\u5e26\u8def\u7531\u5668/VPN\u7f51\u5173\u8bbe\u5907\u3002Vigor2960\u662f\u4e00\u6b3e\u8d1f\u8f7d\u5e73\u8861\u8def\u7531\u5668\u548cVPN\u7f51\u5173\u8bbe\u5907\u3002Vigor300B\u662f\u4e00\u6b3e\u8d1f\u8f7d\u5747\u8861\u8def\u7531\u5668\u3002\r\n\r\nDrayTek Vigor3900\u3001Vigor2960\u548cVigor300B\u4e2d\u5b58\u5728\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u8f83\u957f\u7684\u53c2\u6570\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u4ee3\u7801\u6216\u9020\u6210\u62d2\u7edd\u670d\u52a1\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": "DrayTek Vigor3900\u3001Vigor2960\u548cVigor300B\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "DrayTek Vigor3900 \u003c1.5.1.1",
      "DrayTek Vigor2960 \u003c1.5.1.1",
      "DrayTek Vigor300B \u003c1.5.1.1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-14473",
  "serverity": "\u9ad8",
  "submitTime": "2020-06-28",
  "title": "DrayTek Vigor3900\u3001Vigor2960\u548cVigor300B\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2020-14473 (GCVE-0-2020-14473)

Vulnerability from cvelistv5 – Published: 2020-06-24 16:41 – Updated: 2024-08-04 12:46

Summary

Stack-based buffer overflow vulnerability in Vigor3900, Vigor2960, and Vigor300B with firmware before 1.5.1.1.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

2 references

URL	Tags
https://www.draytek.com/about/security-advisory/v…	x_refsource_CONFIRM
https://github.com/Cossack9989/Vulns/blob/master/…	x_refsource_MISC

Date Public

2020-06-24 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T12:46:34.299Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-stack-based-buffer-overflow-vulnerability-%28cve-2020-14473%29"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/Cossack9989/Vulns/blob/master/IoT/CVE-2020-14473.md"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2020-06-24T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Stack-based buffer overflow vulnerability in Vigor3900, Vigor2960, and Vigor300B with firmware before 1.5.1.1."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-06-30T13:03:15.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-stack-based-buffer-overflow-vulnerability-%28cve-2020-14473%29"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Cossack9989/Vulns/blob/master/IoT/CVE-2020-14473.md"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-14473",
          "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": "Stack-based buffer overflow vulnerability in Vigor3900, Vigor2960, and Vigor300B with firmware before 1.5.1.1."
            }
          ]
        },
        "problemtype": {
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            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
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        },
        "references": {
          "reference_data": [
            {
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              "refsource": "CONFIRM",
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            },
            {
              "name": "https://github.com/Cossack9989/Vulns/blob/master/IoT/CVE-2020-14473.md",
              "refsource": "MISC",
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            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "datePublished": "2020-06-24T16:41:51.000Z",
    "dateReserved": "2020-06-19T00:00:00.000Z",
    "dateUpdated": "2024-08-04T12:46:34.299Z",
    "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.

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Action not permitted

CNVD-2021-21933

CVE-2020-14473 (GCVE-0-2020-14473)

Tags

Sightings

Nomenclature

Related by attack behaviour