{
  "document": {
    "title": "SSA-535997: Cleartext Storage of Sensitive Information in Multiple SIMATIC Products",
    "category": "csaf_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-535997",
      "status": "final",
      "version": "2",
      "revision_history": [
        {
          "number": "1",
          "legacy_version": "1.0",
          "date": "2021-09-14T00:00:00Z",
          "summary": "Publication Date"
        },
        {
          "number": "2",
          "legacy_version": "1.1",
          "date": "2022-06-14T00:00:00Z",
          "summary": "Added fix for SIMATIC CP 1545-1"
        }
      ],
      "initial_release_date": "2021-09-14T00:00:00Z",
      "current_release_date": "2022-06-14T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      }
    },
    "notes": [
      {
        "title": "Summary",
        "category": "summary",
        "text": "A cleartext vulnerability was found in the SIMATIC communication processors CP 1543-1 and CP 1545-1 that could allow an attacker to read sensitive information.\n\nSiemens has released updates for the affected products and recommends to update to the latest versions."
      },
      {
        "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-535997.pdf",
        "summary": "SSA-535997: Cleartext Storage of Sensitive Information in Multiple SIMATIC Products - PDF Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-535997.txt",
        "summary": "SSA-535997: Cleartext Storage of Sensitive Information in Multiple SIMATIC Products - TXT Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-535997.json",
        "summary": "SSA-535997: Cleartext Storage of Sensitive Information in Multiple SIMATIC Products - CSAF Version"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "name": "Siemens",
        "category": "vendor",
        "branches": [
          {
            "name": "SIMATIC CP 1543-1 (incl. SIPLUS variants)",
            "category": "product_name",
            "branches": [
              {
                "name": "< V3.0",
                "category": "product_version_range",
                "product": {
                  "product_id": "1",
                  "name": "SIMATIC CP 1543-1 (incl. SIPLUS variants)"
                }
              }
            ]
          },
          {
            "name": "SIMATIC CP 1545-1",
            "category": "product_name",
            "branches": [
              {
                "name": "< V1.1",
                "category": "product_version_range",
                "product": {
                  "product_id": "2",
                  "name": "SIMATIC CP 1545-1",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK7545-1GX00-0XE0"
                    ]
                  }
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2021-33716",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "An attacker with access to the subnet of the affected device could retrieve sensitive information stored in cleartext."
        }
      ],
      "cve": "CVE-2021-33716",
      "cwe": {
        "id": "CWE-312",
        "name": "Cleartext Storage of Sensitive Information"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C"
          },
          "products": [
            "1",
            "2"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "Update to V3.0 or later version and migrate the TIA Portal engineering project to V17.",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109800773/"
        },
        {
          "product_ids": [
            "1"
          ],
          "category": "vendor_fix",
          "details": "After migrating the project successfully, compilation and download to the device is required.",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109800773/"
        },
        {
          "product_ids": [
            "2"
          ],
          "category": "vendor_fix",
          "details": "Update to V1.1 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109811116/"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109800773/",
          "summary": "CVE-2021-33716 - SIMATIC CP 1543-1 (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109811116/",
          "summary": "CVE-2021-33716 - SIMATIC CP 1545-1"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-33716.json",
          "summary": "CVE-2021-33716 Mitre 5.0 json"
        }
      ]
    }
  ]
}