ssa-753746
Vulnerability from csaf_siemens
Published
2024-02-13 00:00
Modified
2024-06-11 00:00
Summary
SSA-753746: Denial of Service Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products

Notes

Summary
Two null point dereference vulnerabilities affect multiple SIMATIC software products. These could allow an attacker to cause a persistent denial of service condition in the RPC Server of these products. Siemens has released new versions for the affected products and recommends to update to the latest versions.
General Recommendations
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. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use
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.


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{
  "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": "Two null point dereference vulnerabilities affect multiple SIMATIC software products. These could allow an attacker to cause a persistent denial of service condition in the RPC Server of these products.\n\nSiemens has released new versions for the affected products and recommends to update to the latest versions.",
        "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-753746: Denial of Service Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-753746.html"
      },
      {
        "category": "self",
        "summary": "SSA-753746: Denial of Service Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-753746.json"
      },
      {
        "category": "self",
        "summary": "SSA-753746: Denial of Service Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-753746.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-753746: Denial of Service Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-753746.txt"
      }
    ],
    "title": "SSA-753746: Denial of Service Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products",
    "tracking": {
      "current_release_date": "2024-06-11T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-753746",
      "initial_release_date": "2024-02-13T00:00:00Z",
      "revision_history": [
        {
          "date": "2024-02-13T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2024-04-09T00:00:00Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added a mitigation"
        },
        {
          "date": "2024-06-11T00:00:00Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Added fix for SIMATIC WinCC Runtime Professional V19 and corrected fix version of WinCC V8.0 from SP4 to Update4"
        }
      ],
      "status": "interim",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "OpenPCS 7 V9.1",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "OpenPCS 7 V9.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC BATCH V9.1",
                  "product_id": "2"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC BATCH V9.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC PCS 7 V9.1",
                  "product_id": "3"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PCS 7 V9.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC Route Control V9.1",
                  "product_id": "4"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC Route Control V9.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC WinCC Runtime Professional V18",
                  "product_id": "5"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC Runtime Professional V18"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V19 Update 2",
                "product": {
                  "name": "SIMATIC WinCC Runtime Professional V19",
                  "product_id": "6"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC Runtime Professional V19"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC WinCC V7.4",
                  "product_id": "7"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC V7.4"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V7.5 SP2 Update 15",
                "product": {
                  "name": "SIMATIC WinCC V7.5",
                  "product_id": "8"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC V7.5"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V8.0 Update 4",
                "product": {
                  "name": "SIMATIC WinCC V8.0",
                  "product_id": "9"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC V8.0"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-48363",
      "cwe": {
        "id": "CWE-476",
        "name": "NULL Pointer Dereference"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The implementation of the RPC (Remote Procedure call) \r\ncommunication protocol in the affected products do not \r\nproperly handle certain unorganized RPC messages. An \r\nattacker could use this vulnerability to cause a denial of service \r\ncondition in the RPC server.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "The vulnerability is fixed if SIMATIC WinCC V7.5 SP2 Update 15 or later version is installed on the same system",
          "product_ids": [
            "1",
            "2",
            "4"
          ]
        },
        {
          "category": "mitigation",
          "details": "Update to V9.1 SP2; then update SIMATIC WinCC to V7.5 SP2 Update 15 or later version",
          "product_ids": [
            "3"
          ]
        },
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
          "product_ids": [
            "7"
          ]
        },
        {
          "category": "none_available",
          "details": "Currently no fix is available",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V19 Update 2 or later version",
          "product_ids": [
            "6"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109820999/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.5 SP2 Update 15 or later version",
          "product_ids": [
            "8"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109793460/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V8.0 Update 4 or later version",
          "product_ids": [
            "9"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109818723/"
        },
        {
          "category": "workaround",
          "details": "Ensure that SIMATIC WinCC, SIMATIC WinCC Runtime Professional and SIMATIC PCS 7 stations communicate via encrypted channels (i.e. activate feature \u201cEncrypted Communication\u201d in SIMATIC WinCC and SIMATIC PCS 7). Enabling \u201cEncrypted Communication\u201d completely mitigates the vulnerability",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9"
          ]
        }
      ],
      "title": "CVE-2023-48363"
    },
    {
      "cve": "CVE-2023-48364",
      "cwe": {
        "id": "CWE-476",
        "name": "NULL Pointer Dereference"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The implementation of the RPC (Remote Procedure call) communication protocol in the affected products do not properly handle certain malformed RPC messages. An attacker could use this vulnerability to cause a denial of service condition in the RPC server.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "The vulnerability is fixed if SIMATIC WinCC V7.5 SP2 Update 15 or later version is installed on the same system",
          "product_ids": [
            "1",
            "2",
            "4"
          ]
        },
        {
          "category": "mitigation",
          "details": "Update to V9.1 SP2; then update SIMATIC WinCC to V7.5 SP2 Update 15 or later version",
          "product_ids": [
            "3"
          ]
        },
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
          "product_ids": [
            "7"
          ]
        },
        {
          "category": "none_available",
          "details": "Currently no fix is available",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V19 Update 2 or later version",
          "product_ids": [
            "6"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109820999/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.5 SP2 Update 15 or later version",
          "product_ids": [
            "8"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109793460/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V8.0 Update 4 or later version",
          "product_ids": [
            "9"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109818723/"
        },
        {
          "category": "workaround",
          "details": "Ensure that SIMATIC WinCC, SIMATIC WinCC Runtime Professional and SIMATIC PCS 7 stations communicate via encrypted channels (i.e. activate feature \u201cEncrypted Communication\u201d in SIMATIC WinCC and SIMATIC PCS 7). Enabling \u201cEncrypted Communication\u201d completely mitigates the vulnerability",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9"
          ]
        }
      ],
      "title": "CVE-2023-48364"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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