ssa-689942
Vulnerability from csaf_siemens
Published
2020-06-09 00:00
Modified
2021-04-13 00:00
Summary
SSA-689942: Denial-of-Service and DLL Hijacking Vulnerabilities in Multiple SIMATIC Software Products

Notes

Summary
Multiple SIMATIC Software products are affected by two vulnerabilities that could allow an attacker to manipulate project files that may lead to Remote Code Execution or Denial-of-Service attacks. Siemens has released updates to some of the affected products and recommends that customers update to the latest version. Siemens is preparing further updates and recommends specific workarounds and mitigations until patches are available.
General Recommendations
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use
Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.


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{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Uri Katz"
        ],
        "organization": "Claroty",
        "summary": "coordinated disclosure"
      }
    ],
    "category": "Siemens Security Advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited.",
      "tlp": {
        "label": "WHITE"
      }
    },
    "notes": [
      {
        "category": "summary",
        "text": "Multiple SIMATIC Software products are affected by two vulnerabilities that could allow an attacker to manipulate project files that may lead to Remote Code Execution or Denial-of-Service attacks.\n\nSiemens has released updates to some of the affected products and recommends that customers update to the latest version. Siemens is preparing further updates and recommends specific workarounds and mitigations until patches are available.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens\u0027 operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\n\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "title": "General Recommendations"
      },
      {
        "category": "general",
        "text": "For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens\u0027 underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter \"License Terms\"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens\u0027 Global Website (https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "productcert@siemens.com",
      "name": "Siemens ProductCERT",
      "namespace": "https://www.siemens.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-689942: Denial-of-Service and DLL Hijacking Vulnerabilities in Multiple SIMATIC Software Products - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-689942.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-689942: Denial-of-Service and DLL Hijacking Vulnerabilities in Multiple SIMATIC Software Products - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-689942.txt"
      },
      {
        "category": "self",
        "summary": "SSA-689942: Denial-of-Service and DLL Hijacking Vulnerabilities in Multiple SIMATIC Software Products - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-689942.json"
      }
    ],
    "title": "SSA-689942: Denial-of-Service and DLL Hijacking Vulnerabilities in Multiple SIMATIC Software Products",
    "tracking": {
      "current_release_date": "2021-04-13T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-689942",
      "initial_release_date": "2020-06-09T00:00:00Z",
      "revision_history": [
        {
          "date": "2020-06-09T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2020-07-14T00:00:00Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added solution for SIMATIC PCS 7 V9.0"
        },
        {
          "date": "2020-12-08T00:00:00Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Corrected affected version and patch link for SINAMICS STARTER"
        },
        {
          "date": "2021-04-13T00:00:00Z",
          "legacy_version": "1.3",
          "number": "4",
          "summary": "Added solution for SIMATIC PDM"
        }
      ],
      "status": "final",
      "version": "4"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC PCS 7 V8.2 and earlier",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PCS 7 V8.2 and earlier"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V9.0 SP3",
                "product": {
                  "name": "SIMATIC PCS 7 V9.0",
                  "product_id": "2"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PCS 7 V9.0"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V9.2",
                "product": {
                  "name": "SIMATIC PDM",
                  "product_id": "3"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PDM"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V5.6 SP2 HF3",
                "product": {
                  "name": "SIMATIC STEP 7 V5.X",
                  "product_id": "4"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC STEP 7 V5.X"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V5.4 HF2",
                "product": {
                  "name": "SINAMICS STARTER (containing STEP 7 OEM version)",
                  "product_id": "5"
                }
              }
            ],
            "category": "product_name",
            "name": "SINAMICS STARTER (containing STEP 7 OEM version)"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-7585",
      "cwe": {
        "id": "CWE-427",
        "name": "Uncontrolled Search Path Element"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A DLL Hijacking vulnerability could allow a local attacker to execute code with elevated privileges.\n\nThe security vulnerability could be exploited by an attacker with local access to the affected systems. Successful exploitation requires user privileges but no user interaction. The vulnerability could allow an attacker to compromise the availability of the system as well as to have access to confidential information.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5"
        ]
      },
      "references": [
        {
          "summary": "CVE-2020-7585 - SIMATIC PDM",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109794361/"
        },
        {
          "summary": "CVE-2020-7585 - SIMATIC STEP 7 V5.X",
          "url": "https://support.industry.siemens.com/cs/de/en/view/109779992/"
        },
        {
          "summary": "CVE-2020-7585 - SINAMICS STARTER (containing STEP 7 OEM version)",
          "url": "https://support.industry.siemens.com/cs/us/en/view/109782792/"
        },
        {
          "summary": "CVE-2020-7585 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-7585.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "See recommendations from section Workarounds and Mitigations or upgrade to a newer SIMATIC PCS 7 version",
          "product_ids": [
            "1"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.0 SP3 or later version",
          "product_ids": [
            "2"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.2 or later version",
          "product_ids": [
            "3"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109794361/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.6 SP2 HF3 or later version",
          "product_ids": [
            "4"
          ],
          "url": "https://support.industry.siemens.com/cs/de/en/view/109779992/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.4 HF2 or later version",
          "product_ids": [
            "5"
          ],
          "url": "https://support.industry.siemens.com/cs/us/en/view/109782792/"
        },
        {
          "category": "mitigation",
          "details": "Restrict access to project files on the engineering station to trusted users.",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5"
          ]
        },
        {
          "category": "mitigation",
          "details": "Only use project files from trusted sources.",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5"
          ]
        }
      ],
      "title": "CVE-2020-7585"
    },
    {
      "cve": "CVE-2020-7586",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A buffer overflow vulnerability could allow a local attacker to cause a Denial-of-Service situation.\n\nThe security vulnerability could be exploited by an attacker with local access to the affected systems. Successful exploitation requires user privileges but no user interaction. The vulnerability could allow an attacker to compromise the availability of the system as well as to have access to confidential information.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5"
        ]
      },
      "references": [
        {
          "summary": "CVE-2020-7586 - SIMATIC PDM",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109794361/"
        },
        {
          "summary": "CVE-2020-7586 - SIMATIC STEP 7 V5.X",
          "url": "https://support.industry.siemens.com/cs/de/en/view/109779992/"
        },
        {
          "summary": "CVE-2020-7586 - SINAMICS STARTER (containing STEP 7 OEM version)",
          "url": "https://support.industry.siemens.com/cs/us/en/view/109782792/"
        },
        {
          "summary": "CVE-2020-7586 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-7586.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "See recommendations from section Workarounds and Mitigations or upgrade to a newer SIMATIC PCS 7 version",
          "product_ids": [
            "1"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.0 SP3 or later version",
          "product_ids": [
            "2"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.2 or later version",
          "product_ids": [
            "3"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109794361/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.6 SP2 HF3 or later version",
          "product_ids": [
            "4"
          ],
          "url": "https://support.industry.siemens.com/cs/de/en/view/109779992/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.4 HF2 or later version",
          "product_ids": [
            "5"
          ],
          "url": "https://support.industry.siemens.com/cs/us/en/view/109782792/"
        },
        {
          "category": "mitigation",
          "details": "Restrict access to project files on the engineering station to trusted users.",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5"
          ]
        },
        {
          "category": "mitigation",
          "details": "Only use project files from trusted sources.",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5"
          ]
        }
      ],
      "title": "CVE-2020-7586"
    }
  ]
}


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