{
  "document": {
    "title": "SSA-173615: Multiple PAR and ASM 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-173615",
      "status": "final",
      "version": "1",
      "revision_history": [
        {
          "number": "1",
          "legacy_version": "1.0",
          "date": "2021-07-13T00:00:00Z",
          "summary": "Publication Date"
        }
      ],
      "initial_release_date": "2021-07-13T00:00:00Z",
      "current_release_date": "2021-07-13T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      }
    },
    "notes": [
      {
        "title": "Summary",
        "category": "summary",
        "text": "Siemens has released version SE2021MP5 for Solid Edge to fix multiple heap based buffer overflow vulnerabilities that could be triggered when the application read files in PAR or ASM file formats. 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.\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-173615.pdf",
        "summary": "SSA-173615: Multiple PAR and ASM File Parsing Vulnerabilities in Solid Edge - PDF Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-173615.txt",
        "summary": "SSA-173615: Multiple PAR and ASM File Parsing Vulnerabilities in Solid Edge - TXT Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-173615.json",
        "summary": "SSA-173615: Multiple PAR and ASM File Parsing Vulnerabilities in Solid Edge - CSAF Version"
      }
    ],
    "acknowledgments": [
      {
        "organization": "Trend Micro Zero Day Initiative",
        "summary": "coordinated disclosure"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "name": "Siemens",
        "category": "vendor",
        "branches": [
          {
            "name": "Solid Edge SE2021",
            "category": "product_name",
            "branches": [
              {
                "name": "All Versions < SE2021MP5",
                "category": "product_version_range",
                "product": {
                  "product_id": "1",
                  "name": "Solid Edge SE2021"
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2021-34326",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The plmxmlAdapterSE70.dll library in affected applications lacks proper validation of user-supplied data when parsing PAR files. This could result in an out of bounds write past the fixed-length heap-based buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13422)"
        }
      ],
      "cve": "CVE-2021-34326",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-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 SE2021MP5 or later version"
        },
        {
          "product_ids": [
            "1"
          ],
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-34326.json",
          "summary": "CVE-2021-34326 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2021-34327",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The plmxmlAdapterSE70.dll library in affected applications lacks proper validation of user-supplied data when parsing ASM files. This could result in an out of bounds write past the fixed-length heap-based buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13423)"
        }
      ],
      "cve": "CVE-2021-34327",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-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 SE2021MP5 or later version"
        },
        {
          "product_ids": [
            "1"
          ],
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-34327.json",
          "summary": "CVE-2021-34327 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2021-34328",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The plmxmlAdapterSE70.dll library in affected applications lacks proper validation of user-supplied data when parsing PAR files. This could result in an out of bounds write past the fixed-length heap-based buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13424)"
        }
      ],
      "cve": "CVE-2021-34328",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-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 SE2021MP5 or later version"
        },
        {
          "product_ids": [
            "1"
          ],
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-34328.json",
          "summary": "CVE-2021-34328 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2021-34329",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "The plmxmlAdapterSE70.dll library in affected applications lacks proper validation of user-supplied data when parsing PAR files. This could result in an out of bounds write past the fixed-length heap-based buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13427)"
        }
      ],
      "cve": "CVE-2021-34329",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-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 SE2021MP5 or later version"
        },
        {
          "product_ids": [
            "1"
          ],
          "category": "mitigation",
          "details": "Avoid to open untrusted files from unknown sources in Solid Edge"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-34329.json",
          "summary": "CVE-2021-34329 Mitre 5.0 json"
        }
      ]
    }
  ]
}