{
  "document": {
    "title": "SSA-818688: Multiple Vulnerabilities in Solid Edge before SE2021MP7",
    "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-818688",
      "status": "final",
      "version": "1",
      "revision_history": [
        {
          "number": "1",
          "legacy_version": "1.0",
          "date": "2021-08-10T00:00:00Z",
          "summary": "Publication Date"
        }
      ],
      "initial_release_date": "2021-08-10T00:00:00Z",
      "current_release_date": "2021-08-10T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      }
    },
    "notes": [
      {
        "title": "Summary",
        "category": "summary",
        "text": "Siemens has released a new version for Solid Edge that fixes three vulnerabilities - an XML external entity (XXE) injection, and two file parsing issues which could be triggered when the application reads OBJ files.\n\nIf a user is tricked to opening a malicious file using the affected application this could lead the application to crash, or potentially arbitrary code execution and data extraction on the target host system.\n\nSiemens recommends to update to the latest version and to limit opening of 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-818688.pdf",
        "summary": "SSA-818688: Multiple Vulnerabilities in Solid Edge before SE2021MP7 - PDF Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-818688.txt",
        "summary": "SSA-818688: Multiple Vulnerabilities in Solid Edge before SE2021MP7 - TXT Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-818688.json",
        "summary": "SSA-818688: Multiple Vulnerabilities in Solid Edge before SE2021MP7 - CSAF Version"
      }
    ],
    "acknowledgments": [
      {
        "organization": "Trend Micro Zero Day Initiative",
        "summary": "coordinated disclosure of CVE-2021-37179 and CVE-2021-37180"
      },
      {
        "organization": "Cybersecurity and Infrastructure Security Agency (CISA)",
        "summary": "coordination efforts"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "name": "Siemens",
        "category": "vendor",
        "branches": [
          {
            "name": "Solid Edge SE2021",
            "category": "product_name",
            "branches": [
              {
                "name": "All Versions < SE2021MP7",
                "category": "product_version_range",
                "product": {
                  "product_id": "1",
                  "name": "Solid Edge SE2021"
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2021-37178",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "An XML external entity injection vulnerability in the underlying XML parser could cause the affected application to disclose arbitrary files to remote attackers by loading a specially crafted xml file."
        }
      ],
      "cve": "CVE-2021-37178",
      "cwe": {
        "id": "CWE-611",
        "name": "Improper Restriction of XML External Entity Reference"
      },
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:L/E:P/RL:O/RC:C"
          },
          "products": [
            "1"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2021MP7 or later version"
        },
        {
          "product_ids": [
            "1"
          ],
          "category": "mitigation",
          "details": "Avoid opening files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-37178.json",
          "summary": "CVE-2021-37178 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2021-37179",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The PSKERNEL.dll library in affected application lacks proper validation while parsing user-supplied OBJ files that could lead to a use-after-free condition. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13777)"
        }
      ],
      "cve": "CVE-2021-37179",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "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 SE2021MP7 or later version"
        },
        {
          "product_ids": [
            "1"
          ],
          "category": "mitigation",
          "details": "Avoid opening files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-37179.json",
          "summary": "CVE-2021-37179 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2021-37180",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The PSKERNEL.dll library lacks proper validation while parsing user-supplied OBJ files that could cause an out of bounds access to an uninitialized pointer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13775)"
        }
      ],
      "cve": "CVE-2021-37180",
      "cwe": {
        "id": "CWE-824",
        "name": "Access of Uninitialized Pointer"
      },
      "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:T/RC:C"
          },
          "products": [
            "1"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to SE2021MP7 or later version"
        },
        {
          "product_ids": [
            "1"
          ],
          "category": "mitigation",
          "details": "Avoid opening files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-37180.json",
          "summary": "CVE-2021-37180 Mitre 5.0 json"
        }
      ]
    }
  ]
}

