cnvd - cnvd-2021-67536

CNVD-2021-67536

Vulnerability from cnvd - Published: 2021-09-02

Title

Siemens SIMATIC PCS 7安全绕过漏洞

Description

Siemens SIMATIC PCS 7是德国西门子（Siemens）公司的一套过程控制系统。 Siemens SIMATIC PCS 7存在安全漏洞，攻击者可利用漏洞更改某些元文件的内容。

Severity

高

Patch Name

Siemens SIMATIC PCS 7安全绕过漏洞的补丁

Patch Description

Siemens SIMATIC PCS 7是德国西门子（Siemens）公司的一套过程控制系统。 Siemens SIMATIC PCS 7存在安全漏洞，攻击者可利用漏洞更改某些元文件的内容。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-661034.pdf

Reference

https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf

Impacted products

Name
['SIEMENS SIMATIC PDM', 'SIEMENS SIMATIC PCS 7 <=V8.2', 'SIEMENS SINAMICS STARTER (containing STEP 7 OEM version)', 'Siemens SIMATIC STEP 7 < V5.7', 'SIEMENS SIMATIC PCS 7 V9.X']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-31894"
    }
  },
  "description": "Siemens SIMATIC PCS 7\u662f\u5fb7\u56fd\u897f\u95e8\u5b50\uff08Siemens\uff09\u516c\u53f8\u7684\u4e00\u5957\u8fc7\u7a0b\u63a7\u5236\u7cfb\u7edf\u3002\n\nSiemens SIMATIC PCS 7\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u66f4\u6539\u67d0\u4e9b\u5143\u6587\u4ef6\u7684\u5185\u5bb9\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-661034.pdf",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-67536",
  "openTime": "2021-09-02",
  "patchDescription": "Siemens SIMATIC PCS 7\u662f\u5fb7\u56fd\u897f\u95e8\u5b50\uff08Siemens\uff09\u516c\u53f8\u7684\u4e00\u5957\u8fc7\u7a0b\u63a7\u5236\u7cfb\u7edf\u3002\r\n\r\nSiemens SIMATIC PCS 7\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u66f4\u6539\u67d0\u4e9b\u5143\u6587\u4ef6\u7684\u5185\u5bb9\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 PCS 7\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "SIEMENS SIMATIC PDM",
      "SIEMENS SIMATIC PCS 7 \u003c=V8.2",
      "SIEMENS SINAMICS STARTER (containing STEP 7 OEM version)",
      "Siemens SIMATIC STEP 7 \u003c V5.7",
      "SIEMENS SIMATIC PCS 7 V9.X"
    ]
  },
  "referenceLink": "https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf",
  "serverity": "\u9ad8",
  "submitTime": "2021-07-16",
  "title": "Siemens SIMATIC PCS 7\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2021-31894 (GCVE-0-2021-31894)

Vulnerability from cvelistv5 – Published: 2021-07-13 11:02 – Updated: 2024-08-03 23:10

Summary

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.X (All versions < V9.1 SP2), SIMATIC PDM (All versions < V9.2 SP2), SIMATIC STEP 7 V5.X (All versions < V5.7), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 SP2 HF1). A directory containing metafiles relevant to devices' configurations has write permissions. An attacker could leverage this vulnerability by changing the content of certain metafiles and subsequently manipulate parameters or behavior of devices that would be later configured by the affected software.

Severity ?

No CVSS data available.

CWE

CWE-732 - Incorrect Permission Assignment for Critical Resource

Assigner

siemens

References

URL

Tags

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

x_refsource_MISC

Impacted products

Vendor

Product

Version

Siemens

SIMATIC PCS 7 V8.2 and earlier

Affected: All versions

Siemens	SIMATIC PCS 7 V9.X	Affected: All versions < V9.1 SP2
Siemens	SIMATIC PDM	Affected: All versions < V9.2 SP2
Siemens	SIMATIC STEP 7 V5.X	Affected: All versions < V5.7
Siemens	SINAMICS STARTER (containing STEP 7 OEM version)	Affected: All versions < V5.4 SP2 HF1

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:10:30.952Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "SIMATIC PCS 7 V8.2 and earlier",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "product": "SIMATIC PCS 7 V9.X",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V9.1 SP2"
            }
          ]
        },
        {
          "product": "SIMATIC PDM",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V9.2 SP2"
            }
          ]
        },
        {
          "product": "SIMATIC STEP 7 V5.X",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V5.7"
            }
          ]
        },
        {
          "product": "SINAMICS STARTER (containing STEP 7 OEM version)",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c  V5.4 SP2 HF1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.X (All versions \u003c V9.1 SP2), SIMATIC PDM (All versions \u003c V9.2 SP2), SIMATIC STEP 7 V5.X (All versions \u003c V5.7), SINAMICS STARTER (containing STEP 7 OEM version) (All versions \u003c V5.4 SP2 HF1). A directory containing metafiles relevant to devices\u0027 configurations has write permissions. An attacker could leverage this vulnerability by changing the content of certain metafiles and subsequently manipulate parameters or behavior of devices that would be later configured by the affected software."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-732",
              "description": "CWE-732: Incorrect Permission Assignment for Critical Resource",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-08-10T11:17:00",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "productcert@siemens.com",
          "ID": "CVE-2021-31894",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "SIMATIC PCS 7 V8.2 and earlier",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All versions"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "SIMATIC PCS 7 V9.X",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All versions \u003c V9.1 SP2"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "SIMATIC PDM",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All versions \u003c V9.2 SP2"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "SIMATIC STEP 7 V5.X",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All versions \u003c V5.7"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "SINAMICS STARTER (containing STEP 7 OEM version)",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All versions \u003c  V5.4 SP2 HF1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "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 PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.X (All versions \u003c V9.1 SP2), SIMATIC PDM (All versions \u003c V9.2 SP2), SIMATIC STEP 7 V5.X (All versions \u003c V5.7), SINAMICS STARTER (containing STEP 7 OEM version) (All versions \u003c V5.4 SP2 HF1). A directory containing metafiles relevant to devices\u0027 configurations has write permissions. An attacker could leverage this vulnerability by changing the content of certain metafiles and subsequently manipulate parameters or behavior of devices that would be later configured by the affected software."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-732: Incorrect Permission Assignment for Critical Resource"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf",
              "refsource": "MISC",
              "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
    "assignerShortName": "siemens",
    "cveId": "CVE-2021-31894",
    "datePublished": "2021-07-13T11:02:58",
    "dateReserved": "2021-04-29T00:00:00",
    "dateUpdated": "2024-08-03T23:10:30.952Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2021-67536

CVE-2021-31894 (GCVE-0-2021-31894)

Tags

Sightings

Nomenclature