{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)",
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in Nullsoft Scriptable Installer System (NSIS) software (CVE-2023-37378) used in Parasolid installers before V36 creates an \u201cuninstall directory\u201d with insufficient access control. This could allow an attacker to misuse the vulnerability, and potentially escalate privileges. \n\nOnly systems where Parasolid is installed with a Parasolid installer is impacted. Siemens recommends to uninstall impacted Parasolid instances and reinstall with the latest installer available.",
        "title": "Summary"
      },
      {
        "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\u0027 operational guidelines for Industrial Security (Download: \nhttps://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "title": "General Recommendations"
      },
      {
        "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": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens\u0027 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\u0027 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.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "productcert@siemens.com",
      "name": "Siemens ProductCERT",
      "namespace": "https://www.siemens.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-116172: Nullsoft Scriptable Install System (NSIS) Vulnerability (CVE-2023-37378) in Parasolid Installer - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-116172.html"
      },
      {
        "category": "self",
        "summary": "SSA-116172: Nullsoft Scriptable Install System (NSIS) Vulnerability (CVE-2023-37378) in Parasolid Installer - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-116172.json"
      },
      {
        "category": "self",
        "summary": "SSA-116172: Nullsoft Scriptable Install System (NSIS) Vulnerability (CVE-2023-37378) in Parasolid Installer - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-116172.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-116172: Nullsoft Scriptable Install System (NSIS) Vulnerability (CVE-2023-37378) in Parasolid Installer - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-116172.txt"
      }
    ],
    "title": "SSA-116172: Nullsoft Scriptable Install System (NSIS) Vulnerability (CVE-2023-37378) in Parasolid Installer",
    "tracking": {
      "current_release_date": "2023-08-08T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-116172",
      "initial_release_date": "2023-08-08T00:00:00Z",
      "revision_history": [
        {
          "date": "2023-08-08T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Parasolid V35.0",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "Parasolid V35.0"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Parasolid V35.1",
                  "product_id": "2"
                }
              }
            ],
            "category": "product_name",
            "name": "Parasolid V35.1"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-37378",
      "cwe": {
        "id": "CWE-732",
        "name": "Incorrect Permission Assignment for Critical Resource"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Nullsoft Scriptable Install System (NSIS) before v3.09 creates an \"uninstall directory\" with insufficient access control. This could allow an attacker to misuse the vulnerability, and potentially escalate privileges.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Ensure that only trusted persons have access to the system and avoid the configuration of additional accounts",
          "product_ids": [
            "1",
            "2"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Run the uninstaller to remove the vulnerable directory and reinstall with the latest installer available for download",
          "product_ids": [
            "1",
            "2"
          ],
          "url": "https://support.sw.siemens.com/en-US/product/258316782/"
        },
        {
          "category": "workaround",
          "details": "Scan each computer where Parasolid has ever been installed with an up-to-date anti-virus program and follow its recommendations",
          "product_ids": [
            "1",
            "2"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2"
          ]
        }
      ],
      "title": "CVE-2023-37378"
    }
  ]
}