Vulnerability-Lookup

CNVD-2021-39139

Vulnerability from cnvd - Published: 2021-06-03

Title

Siemens SIMATIC OPC UA信息泄露漏洞

Description

Siemens SIMATIC CP443-1 OPC UA9是德国西门子（Siemens）公司的一款通信处理器。 OPC UA 存在信息泄露漏洞。攻击者可利用该漏洞获取敏感信息。

Severity

中

Patch Name

Siemens SIMATIC OPC UA信息泄露漏洞的补丁

Patch Description

Siemens SIMATIC CP443-1 OPC UA9是德国西门子（Siemens）公司的一款通信处理器。 OPC UA 存在信息泄露漏洞。攻击者可利用该漏洞获取敏感信息。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://cert-portal.siemens.com/productcert/pdf/ssa-752103.pdf

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-27434

Impacted products

Name
Siemens Unified Automation .NET based OPC UA Client/Server SDK Bundle <=V3.0.7（仅限 .NET 4.5、4.0 和 3.5 Framework 版本）

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-27434"
    }
  },
  "description": "Siemens SIMATIC CP443-1 OPC UA9\u662f\u5fb7\u56fd\u897f\u95e8\u5b50\uff08Siemens\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u901a\u4fe1\u5904\u7406\u5668\u3002\n\nOPC UA \u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\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://cert-portal.siemens.com/productcert/pdf/ssa-752103.pdf",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-39139",
  "openTime": "2021-06-03",
  "patchDescription": "Siemens SIMATIC CP443-1 OPC UA9\u662f\u5fb7\u56fd\u897f\u95e8\u5b50\uff08Siemens\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u901a\u4fe1\u5904\u7406\u5668\u3002\r\n\r\nOPC UA \u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\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 OPC UA\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Siemens Unified Automation .NET based OPC UA Client/Server SDK Bundle \u003c=V3.0.7\uff08\u4ec5\u9650 .NET 4.5\u30014.0 \u548c 3.5 Framework \u7248\u672c\uff09"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-27434",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-14",
  "title": "Siemens SIMATIC OPC UA\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2021-27434 (GCVE-0-2021-27434)

Vulnerability from cvelistv5 – Published: 2021-05-20 13:42 – Updated: 2024-08-03 20:48

Summary

Products with Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only) are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow.

Severity

No CVSS data available.

CWE

CWE-200 - EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200

Assigner

icscert icscert root

References

1 reference

URL	Tags
https://us-cert.cisa.gov/ics/advisories/icsa-21-133-04	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	OPC UA Products Built with the .NET Framework 4.5, 4.0, and 3.5	Affected: Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:48:17.296Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-04"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "OPC UA Products Built with the .NET Framework 4.5, 4.0, and 3.5",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only)"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Products with Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only) are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-20T13:42:54.000Z",
        "orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
        "shortName": "icscert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-04"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "ics-cert@hq.dhs.gov",
          "ID": "CVE-2021-27434",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "OPC UA Products Built with the .NET Framework 4.5, 4.0, and 3.5",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only)"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Products with Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only) are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-04",
              "refsource": "MISC",
              "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-04"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
    "assignerShortName": "icscert",
    "cveId": "CVE-2021-27434",
    "datePublished": "2021-05-20T13:42:54.000Z",
    "dateReserved": "2021-02-19T00:00:00.000Z",
    "dateUpdated": "2024-08-03T20:48:17.296Z",
    "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.
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CNVD-2021-39139

CVE-2021-27434 (GCVE-0-2021-27434)

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