Vulnerability-Lookup

CNVD-2017-37420

Vulnerability from cnvd - Published: 2017-12-19

Title

Snap7 Server拒绝服务漏洞

Description

Snap7是一套开源的多平台以太网通信套件，用于与PLC进行本地连接。Snap7 Server是其中的一个服务器组件。 Snap7 Server 1.4.1版本中存在安全漏洞。攻击者可利用该漏洞造成拒绝服务（崩溃）。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://sourceforge.net/projects/snap7/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2017-1000230

Impacted products

Name
Snap7 Snap7 Server 1.4.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-1000230"
    }
  },
  "description": "Snap7\u662f\u4e00\u5957\u5f00\u6e90\u7684\u591a\u5e73\u53f0\u4ee5\u592a\u7f51\u901a\u4fe1\u5957\u4ef6\uff0c\u7528\u4e8e\u4e0ePLC\u8fdb\u884c\u672c\u5730\u8fde\u63a5\u3002Snap7 Server\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u670d\u52a1\u5668\u7ec4\u4ef6\u3002\r\n\r\nSnap7 Server 1.4.1\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5d29\u6e83\uff09\u3002",
  "discovererName": "Martin T",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://sourceforge.net/projects/snap7/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-37420",
  "openTime": "2017-12-19",
  "products": {
    "product": "Snap7 Snap7 Server 1.4.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-1000230",
  "serverity": "\u4e2d",
  "submitTime": "2017-11-20",
  "title": "Snap7 Server\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2017-1000230 (GCVE-0-2017-1000230)

Vulnerability from cvelistv5 – Published: 2017-11-17 21:00 – Updated: 2024-09-16 22:52

Summary

The Snap7 Server version 1.4.1 can be crashed when the ItemCount field of the ReadVar or WriteVar functions of the S7 protocol implementation in Snap7 are provided with unexpected input, thus resulting in denial of service attack.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://sourceforge.net/p/snap7/discussion/bugfix…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T21:53:07.430Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "dateAssigned": "2017-08-22T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The Snap7 Server version 1.4.1 can be crashed when the ItemCount field of the ReadVar or WriteVar functions of the S7 protocol implementation in Snap7 are provided with unexpected input, thus resulting in denial of service attack."
        }
      ],
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              "type": "text"
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      "providerMetadata": {
        "dateUpdated": "2017-11-17T21:00:00.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "DATE_ASSIGNED": "2017-08-22T17:29:33.459114",
          "ID": "CVE-2017-1000230",
          "REQUESTER": "martin.tenek@gmail.com",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
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                            "version_value": "n/a"
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                      }
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                "vendor_name": "n/a"
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        "data_format": "MITRE",
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        "data_version": "4.0",
        "description": {
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            }
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        },
        "references": {
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            {
              "name": "https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/",
              "refsource": "MISC",
              "url": "https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/"
            }
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "datePublished": "2017-11-17T21:00:00.000Z",
    "dateReserved": "2017-11-17T00:00:00.000Z",
    "dateUpdated": "2024-09-16T22:52:08.145Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

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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.
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Action not permitted

CNVD-2017-37420

CVE-2017-1000230 (GCVE-0-2017-1000230)

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