{
  "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": "Multiple SICAM products are affected by buffer overflow vulnerability in the IEC 61850 Client libraries from Triangle MicroWorks that could allow an unauthenticated remote attacker to create a denial of service condition by sending specially crafted MMS messages.\n\nAffected SICAM and SITIPE products:\n\n- \nSICAM A8000 Device firmware \n\n- ETI5 for CP-8031/CP-8050\n\n\n- \nSICAM EGS Device firmware \n\n- ETI5\n\n\n- \nSICAM 8 Software Solution \n\n- ETI5 \n\n\n- \nSICAM SCC\n\n\n- SITIPE AT\n\nSiemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "Operators of critical power systems (e.g. TSOs or DSOs) worldwide are usually required by regulations to build resilience into the power grids by applying multi-level redundant secondary protection schemes. It is therefore recommended that the operators check whether appropriate resilient protection measures are in place. The risk of cyber incidents impacting the grid\u0027s reliability can thus be minimized by virtue of the grid design.\nSiemens strongly recommends applying the provided security updates using the corresponding tooling and documented procedures made available with the product. If supported by the product, an automated means to apply the security updates across multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being applied, and supervision by trained staff of the update process in the target environment. \nAs a general security measure Siemens strongly recommends to protect network access with appropriate mechanisms (e.g. firewalls, segmentation, VPN). It is advised to configure the environment according to our operational guidelines in order to run the devices in a protected IT environment.\n\nRecommended security guidelines can be found at:\n\nhttps://www.siemens.com/gridsecurity",
        "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-673996: Buffer Overflow Vulnerability in Third-Party Component in SICAM and SITIPE Products - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-673996.html"
      },
      {
        "category": "self",
        "summary": "SSA-673996: Buffer Overflow Vulnerability in Third-Party Component in SICAM and SITIPE Products - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-673996.json"
      }
    ],
    "title": "SSA-673996: Buffer Overflow Vulnerability in Third-Party Component in SICAM and SITIPE Products",
    "tracking": {
      "current_release_date": "2024-09-10T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-673996",
      "initial_release_date": "2024-09-10T00:00:00Z",
      "revision_history": [
        {
          "date": "2024-09-10T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        }
      ],
      "status": "interim",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV05.30",
                "product": {
                  "name": "ETI5 Ethernet Int. 1x100TX IEC61850",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "ETI5 Ethernet Int. 1x100TX IEC61850"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV10.0",
                "product": {
                  "name": "SICAM SCC",
                  "product_id": "2"
                }
              }
            ],
            "category": "product_name",
            "name": "SICAM SCC"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SITIPE AT",
                  "product_id": "3"
                }
              }
            ],
            "category": "product_name",
            "name": "SITIPE AT"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-34057",
      "cwe": {
        "id": "CWE-120",
        "name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The IEC 61850 Client libraries as integrated in affected products improperly check buffer sizes when processing received MMS messages. This could allow an unauthenticated remote attacker to create a denial of service condition by sending specially crafted MMS messages.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "remediations": [
        {
          "category": "none_available",
          "details": "Currently no fix is available",
          "product_ids": [
            "3"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V10.0 or later version",
          "product_ids": [
            "2"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109973586/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V05.30 or later version\n\nThe firmware ETI5 V5.30 is present within \u201cCP-8031/CP-8050 Package\u201d V5.30\n\n\nhttps://support.industry.siemens.com/cs/ww/en/view/109804985/",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3"
          ]
        }
      ],
      "title": "CVE-2024-34057"
    }
  ]
}