{
  "document": {
    "title": "SSA-208356: DFT File Parsing Vulnerabilities in Solid Edge",
    "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-208356",
      "status": "final",
      "version": "1",
      "revision_history": [
        {
          "number": "1",
          "legacy_version": "1.0",
          "date": "2021-06-08T00:00:00Z",
          "summary": "Publication Date"
        }
      ],
      "initial_release_date": "2021-06-08T00:00:00Z",
      "current_release_date": "2021-06-08T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      }
    },
    "notes": [
      {
        "title": "Summary",
        "category": "summary",
        "text": "Siemens has released a new version for Solid Edge to fix two vulnerabilities that could be triggered when the application read files in DFT file format. If a user is tricked to opening of a malicious file with the affected products, this could lead to application crash, or potentially arbitrary code execution on the target host system.\n\nSiemens recommends to update to the latest versions and to limit opening of untrusted files from unknown sources in the affected products."
      },
      {
        "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-208356.pdf",
        "summary": "SSA-208356: DFT File Parsing Vulnerabilities in Solid Edge - PDF Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-208356.txt",
        "summary": "SSA-208356: DFT File Parsing Vulnerabilities in Solid Edge - TXT Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-208356.json",
        "summary": "SSA-208356: DFT File Parsing Vulnerabilities in Solid Edge - 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": "Solid Edge SE2020",
            "category": "product_name",
            "branches": [
              {
                "name": "All Versions < 2020MP14",
                "category": "product_version_range",
                "product": {
                  "product_id": "1",
                  "name": "Solid Edge SE2020"
                }
              }
            ]
          },
          {
            "name": "Solid Edge SE2021",
            "category": "product_name",
            "branches": [
              {
                "name": "All Versions < SE2021MP5",
                "category": "product_version_range",
                "product": {
                  "product_id": "2",
                  "name": "Solid Edge SE2021"
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2021-31342",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The ugeom2d.dll library lacks proper validation of user-supplied data when parsing DFT files. This could result in an out of bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-12993)"
        }
      ],
      "cve": "CVE-2021-31342",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2"
        ]
      },
      "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",
            "2"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to 2020MP14 or later version"
        },
        {
          "product_ids": [
            "2"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2021MP5 or later version"
        },
        {
          "product_ids": [
            "1",
            "2"
          ],
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-31342.json",
          "summary": "CVE-2021-31342 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2021-31343",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The jutil.dll library lacks proper validation of user-supplied data when parsing DFT files. This could result in an out of bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-12994)"
        }
      ],
      "cve": "CVE-2021-31343",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2"
        ]
      },
      "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",
            "2"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to 2020MP14 or later version"
        },
        {
          "product_ids": [
            "2"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2021MP5 or later version"
        },
        {
          "product_ids": [
            "1",
            "2"
          ],
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-31343.json",
          "summary": "CVE-2021-31343 Mitre 5.0 json"
        }
      ]
    }
  ]
}

