{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Richard Davy"
        ],
        "organization": "ECSC Group",
        "summary": "coordinated disclosure"
      }
    ],
    "category": "Siemens Security Advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited.",
      "tlp": {
        "label": "WHITE"
      }
    },
    "notes": [
      {
        "category": "summary",
        "text": "The installation of SIMARIS configuration causes insecure folder permissions that could allow vertical privilege escalation.\n\nSiemens has released an update for SIMARIS and recommends to update to the latest version.",
        "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: 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": "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-794542: Insecure Folder Permissions in SIMARIS Configuration - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-794542.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-794542: Insecure Folder Permissions in SIMARIS Configuration - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-794542.txt"
      },
      {
        "category": "self",
        "summary": "SSA-794542: Insecure Folder Permissions in SIMARIS Configuration - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-794542.json"
      }
    ],
    "title": "SSA-794542: Insecure Folder Permissions in SIMARIS Configuration",
    "tracking": {
      "current_release_date": "2021-05-11T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-794542",
      "initial_release_date": "2021-02-09T00:00:00Z",
      "revision_history": [
        {
          "date": "2021-02-09T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2021-05-11T00:00:00Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added solution"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V4.0.1",
                "product": {
                  "name": "SIMARIS configuration",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMARIS configuration"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-28392",
      "cwe": {
        "id": "CWE-276",
        "name": "Incorrect Default Permissions"
      },
      "notes": [
        {
          "category": "summary",
          "text": "During installation to default target folder, incorrect permissions are configured for the application folder and subfolders which could allow an attacker to gain persistence or potentially escalate privileges should a user with elevated credentials log onto the machine.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2020-28392 - SIMARIS configuration",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109740118/"
        },
        {
          "summary": "CVE-2020-28392 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-28392.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V4.0.1 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109740118/"
        },
        {
          "category": "mitigation",
          "details": "Set installation path to a folder inside %APPDATA% for your user.",
          "product_ids": [
            "1"
          ]
        },
        {
          "category": "mitigation",
          "details": "Apply the principle of least privileges operation of SIMARIS configuration and especially do not use any administrative accounts for executing the software.",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2020-28392"
    }
  ]
}