{
  "document": {
    "title": "SSA-574442: Multiple PAR and 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-574442",
      "status": "final",
      "version": "2",
      "revision_history": [
        {
          "number": "1",
          "legacy_version": "1.0",
          "date": "2021-04-13T00:00:00Z",
          "summary": "Publication Date"
        },
        {
          "number": "2",
          "legacy_version": "1.1",
          "date": "2021-06-08T00:00:00Z",
          "summary": "Updated remediation for CVE-2020-26997, CVE-2021-25678 and CVE-2021-27382"
        }
      ],
      "initial_release_date": "2021-04-13T00:00:00Z",
      "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 multiple vulnerabilities that could be triggered when the application reads files in different file formats (PAR, DFT extensions). If a user is tricked to open a malicious file with 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-574442.pdf",
        "summary": "SSA-574442: Multiple PAR and DFT File Parsing Vulnerabilities in Solid Edge - PDF Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-574442.txt",
        "summary": "SSA-574442: Multiple PAR and DFT File Parsing Vulnerabilities in Solid Edge - TXT Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-574442.json",
        "summary": "SSA-574442: Multiple PAR and 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": "< SE2020MP13",
                "category": "product_version_range",
                "product": {
                  "product_id": "1",
                  "name": "Solid Edge SE2020"
                }
              }
            ]
          },
          {
            "name": "Solid Edge SE2020",
            "category": "product_name",
            "branches": [
              {
                "name": "< SE2020MP14",
                "category": "product_version_range",
                "product": {
                  "product_id": "2",
                  "name": "Solid Edge SE2020"
                }
              }
            ]
          },
          {
            "name": "Solid Edge SE2021",
            "category": "product_name",
            "branches": [
              {
                "name": "All Versions < SE2021MP4",
                "category": "product_version_range",
                "product": {
                  "product_id": "3",
                  "name": "Solid Edge SE2021"
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2020-26997",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "Affected applications lack proper validation of user-supplied data when parsing PAR files. This could lead to pointer dereferences of a value obtained from untrusted source. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-11919)"
        }
      ],
      "cve": "CVE-2020-26997",
      "cwe": {
        "id": "CWE-822",
        "name": "Untrusted Pointer Dereference"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "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",
            "3"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2020MP13 or later version"
        },
        {
          "product_ids": [
            "2"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2020MP14 or later version"
        },
        {
          "product_ids": [
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2021MP4 or later version"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-26997.json",
          "summary": "CVE-2020-26997 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2020-28385",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "Affected applications lack 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-12049)"
        }
      ],
      "cve": "CVE-2020-28385",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "product_status": {
        "known_affected": [
          "1",
          "3"
        ]
      },
      "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",
            "3"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2020MP13 or later version"
        },
        {
          "product_ids": [
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2021MP4 or later version"
        },
        {
          "product_ids": [
            "1",
            "3"
          ],
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-28385.json",
          "summary": "CVE-2020-28385 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2021-25678",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "Affected applications lack proper validation of user-supplied data when parsing PAR 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-12529)"
        }
      ],
      "cve": "CVE-2021-25678",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "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",
            "3"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2020MP13 or later version"
        },
        {
          "product_ids": [
            "2"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2020MP14 or later version"
        },
        {
          "product_ids": [
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2021MP4 or later version"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-25678.json",
          "summary": "CVE-2021-25678 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2021-27380",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "Affected applications lack proper validation of user-supplied data when parsing PAR 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-12532)"
        }
      ],
      "cve": "CVE-2021-27380",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "product_status": {
        "known_affected": [
          "1",
          "3"
        ]
      },
      "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",
            "3"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2020MP13 or later version"
        },
        {
          "product_ids": [
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2021MP4 or later version"
        },
        {
          "product_ids": [
            "1",
            "3"
          ],
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-27380.json",
          "summary": "CVE-2021-27380 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2021-27382",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "Affected applications lack proper validation of user-supplied data when parsing of PAR files. This could result in a stack based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13040)"
        }
      ],
      "cve": "CVE-2021-27382",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "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",
            "3"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2020MP13 or later version"
        },
        {
          "product_ids": [
            "2"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2020MP14 or later version"
        },
        {
          "product_ids": [
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2021MP4 or later version"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-27382.json",
          "summary": "CVE-2021-27382 Mitre 5.0 json"
        }
      ]
    }
  ]
}