{
  "document": {
    "title": "SSA-983548: Multiple SPP File Parsing Vulnerabilities in Tecnomatix Plant Simulation",
    "category": "Siemens Security Advisory",
    "csaf_version": "2.0",
    "publisher": {
      "name": "Siemens ProductCERT",
      "contact_details": "productcert@siemens.com",
      "category": "vendor",
      "namespace": "https://www.siemens.com"
    },
    "distribution": {
      "text": "Disclosure is not limited.",
      "tlp": {
        "label": "WHITE"
      }
    },
    "tracking": {
      "id": "SSA-983548",
      "status": "final",
      "version": "1",
      "revision_history": [
        {
          "number": "1",
          "legacy_version": "1.0",
          "date": "2021-05-11T00:00:00Z",
          "summary": "Publication Date"
        }
      ],
      "initial_release_date": "2021-05-11T00:00:00Z",
      "current_release_date": "2021-05-11T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      }
    },
    "notes": [
      {
        "title": "Summary",
        "category": "summary",
        "text": "Siemens Tecnomatix Plant Simulation has released an update for version V16.0 that fixes multiple vulnerabilities that could be triggered when the application reads SPP files. If a user is tricked to open a malicious file using the affected application, this could lead to a crash, and potentially also to arbitrary code execution or data extraction on the target host system.\n\nSiemens recommends to update to the latest version and to avoid opening of untrusted files from unknown sources."
      },
      {
        "title": "General Recommendations",
        "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' 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": "Additional Resources",
        "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": "Terms of Use",
        "category": "legal_disclaimer",
        "text": "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."
      }
    ],
    "references": [
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-983548.pdf",
        "summary": "SSA-983548: Multiple SPP File Parsing Vulnerabilities in Tecnomatix Plant Simulation - PDF Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-983548.txt",
        "summary": "SSA-983548: Multiple SPP File Parsing Vulnerabilities in Tecnomatix Plant Simulation - TXT Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-983548.json",
        "summary": "SSA-983548: Multiple SPP File Parsing Vulnerabilities in Tecnomatix Plant Simulation - CSAF Version"
      }
    ],
    "acknowledgments": [
      {
        "organization": "Trend Micro Zero Day Initiative",
        "summary": "coordinated disclosure"
      },
      {
        "organization": "Cybersecurity and Infrastructure Security Agency (CISA)",
        "summary": "coordination efforts"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "name": "Siemens",
        "category": "vendor",
        "branches": [
          {
            "name": "Tecnomatix Plant Simulation",
            "category": "product_name",
            "branches": [
              {
                "name": "< V16.0.5",
                "category": "product_version_range",
                "product": {
                  "product_id": "1",
                  "name": "Tecnomatix Plant Simulation"
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2021-27396",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The PlantSimCore.dll library lacks proper validation of user-supplied data when parsing SPP files. This could result in a stack based buffer overflow, a different vulnerability than CVE-2021-27398.\n\nAn attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13279)"
        }
      ],
      "cve": "CVE-2021-27396",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to V16.0.5 or later version"
        },
        {
          "product_ids": [
            "1"
          ],
          "category": "mitigation",
          "details": "Do not open untrusted SPP files from unknown sources"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-27396.json",
          "summary": "CVE-2021-27396 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2021-27397",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The PlantSimCore.dll library lacks proper validation of user-supplied data when parsing SPP files. This could result in a memory corruption condition.\n\nAn attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13287)"
        }
      ],
      "cve": "CVE-2021-27397",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to V16.0.5 or later version"
        },
        {
          "product_ids": [
            "1"
          ],
          "category": "mitigation",
          "details": "Do not open untrusted SPP files from unknown sources"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-27397.json",
          "summary": "CVE-2021-27397 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2021-27398",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The PlantSimCore.dll library lacks proper validation of user-supplied data when parsing SPP files. This could result in a stack based buffer overflow, a different vulnerability than CVE-2021-27396.\n\nAn attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13290)"
        }
      ],
      "cve": "CVE-2021-27398",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to V16.0.5 or later version"
        },
        {
          "product_ids": [
            "1"
          ],
          "category": "mitigation",
          "details": "Do not open untrusted SPP files from unknown sources"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-27398.json",
          "summary": "CVE-2021-27398 Mitre 5.0 json"
        }
      ]
    }
  ]
}

