{
  "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": "PowerSys before V3.11 is affected by a vulnerability that could allow a local attacker to bypass authentication, thereby gaining administrative privileges for the managed remote devices.\n\nSiemens has released a new version for PowerSys and recommends to update to the latest version.",
        "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-024584: Authentication Bypass Vulnerability in PowerSys before V3.11 - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-024584.html"
      },
      {
        "category": "self",
        "summary": "SSA-024584: Authentication Bypass Vulnerability in PowerSys before V3.11 - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-024584.json"
      },
      {
        "category": "self",
        "summary": "SSA-024584: Authentication Bypass Vulnerability in PowerSys before V3.11 - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-024584.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-024584: Authentication Bypass Vulnerability in PowerSys before V3.11 - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-024584.txt"
      }
    ],
    "title": "SSA-024584: Authentication Bypass Vulnerability in PowerSys before V3.11",
    "tracking": {
      "current_release_date": "2024-06-11T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-024584",
      "initial_release_date": "2024-06-11T00:00:00Z",
      "revision_history": [
        {
          "date": "2024-06-11T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        }
      ],
      "status": "interim",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV3.11",
                "product": {
                  "name": "PowerSys",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "PowerSys"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-36266",
      "cwe": {
        "id": "CWE-287",
        "name": "Improper Authentication"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected application insufficiently protects responses to authentication requests. This could allow a local attacker to bypass authentication, thereby gaining administrative privileges for the managed remote devices.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V3.11 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109963280/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2024-36266"
    }
  ]
}