Vulnerability-Lookup

CNVD-2021-61123

Vulnerability from cnvd - Published: 2021-08-11

Title

Siemens SIMATIC S7-1200缺少身份验证漏洞

Description

Siemens SIMATIC S7-1200是德国西门子（Siemens）公司的一款S7-1200系列PLC（可编程逻辑控制器）。 Siemens SIMATIC S7-1200存在安全题漏洞，该漏洞源于设备无法根据配置的密码进行身份验证。攻击者可利用漏洞绕过身份验证并将任意程序下载到PLC。

Severity

高

Patch Name

Siemens SIMATIC S7-1200缺少身份验证漏洞的补丁

Patch Description

Siemens SIMATIC S7-1200是德国西门子（Siemens）公司的一款S7-1200系列PLC（可编程逻辑控制器）。 Siemens SIMATIC S7-1200存在安全题漏洞，该漏洞源于设备无法根据配置的密码进行身份验证。攻击者可利用漏洞绕过身份验证并将任意程序下载到PLC。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

用户可参考如下供应商提供的安全公告获得补丁信息： https://cert-portal.siemens.com/productcert/pdf/ssa-830194.pdf

Reference

https://cert-portal.siemens.com/productcert/pdf/ssa-830194.pdf

Impacted products

Name
Siemens SIMATIC S7-1200 CPU family (incl. SIPLUS vari- ants) V4.5.0

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-37172"
    }
  },
  "description": "Siemens SIMATIC S7-1200\u662f\u5fb7\u56fd\u897f\u95e8\u5b50\uff08Siemens\uff09\u516c\u53f8\u7684\u4e00\u6b3eS7-1200\u7cfb\u5217PLC\uff08\u53ef\u7f16\u7a0b\u903b\u8f91\u63a7\u5236\u5668\uff09\u3002\n\nSiemens SIMATIC S7-1200\u5b58\u5728\u5b89\u5168\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8bbe\u5907\u65e0\u6cd5\u6839\u636e\u914d\u7f6e\u7684\u5bc6\u7801\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u5e76\u5c06\u4efb\u610f\u7a0b\u5e8f\u4e0b\u8f7d\u5230PLC\u3002",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u4f9b\u5e94\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttps://cert-portal.siemens.com/productcert/pdf/ssa-830194.pdf",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-61123",
  "openTime": "2021-08-11",
  "patchDescription": "Siemens SIMATIC S7-1200\u662f\u5fb7\u56fd\u897f\u95e8\u5b50\uff08Siemens\uff09\u516c\u53f8\u7684\u4e00\u6b3eS7-1200\u7cfb\u5217PLC\uff08\u53ef\u7f16\u7a0b\u903b\u8f91\u63a7\u5236\u5668\uff09\u3002\r\n\r\nSiemens SIMATIC S7-1200\u5b58\u5728\u5b89\u5168\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8bbe\u5907\u65e0\u6cd5\u6839\u636e\u914d\u7f6e\u7684\u5bc6\u7801\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u5e76\u5c06\u4efb\u610f\u7a0b\u5e8f\u4e0b\u8f7d\u5230PLC\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": "Siemens SIMATIC S7-1200\u7f3a\u5c11\u8eab\u4efd\u9a8c\u8bc1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Siemens SIMATIC S7-1200 CPU family (incl. SIPLUS vari- ants) V4.5.0"
  },
  "referenceLink": "https://cert-portal.siemens.com/productcert/pdf/ssa-830194.pdf",
  "serverity": "\u9ad8",
  "submitTime": "2021-08-11",
  "title": "Siemens SIMATIC S7-1200\u7f3a\u5c11\u8eab\u4efd\u9a8c\u8bc1\u6f0f\u6d1e"
}

CVE-2021-37172 (GCVE-0-2021-37172)

Vulnerability from cvelistv5 – Published: 2021-08-10 10:35 – Updated: 2024-08-04 01:16

Summary

A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (V4.5.0). Affected devices fail to authenticate against configured passwords when provisioned using TIA Portal V13. This could allow an attacker using TIA Portal V13 or later versions to bypass authentication and download arbitrary programs to the PLC. The vulnerability does not occur when TIA Portal V13 SP1 or any later version was used to provision the device.

Severity

No CVSS data available.

CWE

CWE-287 - Improper Authentication

Assigner

siemens icscert root Scorecard

References

1 reference

URL	Tags
https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Siemens	SIMATIC S7-1200 CPU family (incl. SIPLUS variants)	Affected: V4.5.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T01:16:03.220Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-830194.pdf"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "SIMATIC S7-1200 CPU family (incl. SIPLUS variants)",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "V4.5.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (V4.5.0). Affected devices fail to authenticate against configured passwords when provisioned using TIA Portal V13. This could allow an attacker using TIA Portal V13 or later versions to bypass authentication and download arbitrary programs to the PLC. The vulnerability does not occur when TIA Portal V13 SP1 or any later version was used to provision the device."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "CWE-287: Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-14T10:47:40.000Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-830194.pdf"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "productcert@siemens.com",
          "ID": "CVE-2021-37172",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "SIMATIC S7-1200 CPU family (incl. SIPLUS variants)",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "V4.5.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Siemens"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (V4.5.0). Affected devices fail to authenticate against configured passwords when provisioned using TIA Portal V13. This could allow an attacker using TIA Portal V13 or later versions to bypass authentication and download arbitrary programs to the PLC. The vulnerability does not occur when TIA Portal V13 SP1 or any later version was used to provision the device."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-287: Improper Authentication"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-830194.pdf",
              "refsource": "MISC",
              "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-830194.pdf"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
    "assignerShortName": "siemens",
    "cveId": "CVE-2021-37172",
    "datePublished": "2021-08-10T10:35:34.000Z",
    "dateReserved": "2021-07-21T00:00:00.000Z",
    "dateUpdated": "2024-08-04T01:16:03.220Z",
    "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-2021-61123

CVE-2021-37172 (GCVE-0-2021-37172)

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