{
  "document": {
    "acknowledgments": [
      {
        "organization": "Siemens ProductCERT",
        "summary": "reporting this vulnerability to CISA."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
        "label": "WHITE",
        "url": "https://us-cert.cisa.gov/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "WIBU Systems published information about a heap buffer overflow vulnerability and associated fix releases of CodeMeter Runtime, a product provided by WIBU Systems and used in several Siemens industrial products for license management.\n\nThe vulnerability is described in the section \"Vulnerability Classification\" below and got assigned the CVE ID CVE-2023-3935.\nSuccessful exploitation of this vulnerability could allow\n\n- an unauthenticated remote attacker to execute code on vulnerable products, where CodeMeter Runtime (i.e., CodeMeter.exe) is configured as a server, or\n- an authenticated local attacker to gain root/admin privileges on vulnerable products, where CodeMeter Runtime is configured as a client.\n\nSiemens has released updates for several affected products and recommends to update to the latest versions. Siemens is preparing further updates and recommends countermeasures for products where updates are not, or not yet available.",
        "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"
      },
      {
        "category": "legal_disclaimer",
        "text": "All information products included in https://us-cert.cisa.gov/ics are provided \"as is\" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.",
        "title": "Legal Notice"
      },
      {
        "category": "other",
        "text": "This CISA CSAF advisory was converted from Siemens ProductCERT\u0027s CSAF advisory.",
        "title": "Advisory Conversion Disclaimer"
      },
      {
        "category": "other",
        "text": "Multiple",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Germany",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Locate control system networks and remote devices behind firewalls and isolate them from business networks.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "central@cisa.dhs.gov",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-240541: WIBU Systems CodeMeter Heap Buffer Overflow Vulnerability in Industrial Products - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-240541.json"
      },
      {
        "category": "self",
        "summary": "SSA-240541: WIBU Systems CodeMeter Heap Buffer Overflow Vulnerability in Industrial Products - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-240541.html"
      },
      {
        "category": "self",
        "summary": "SSA-240541: WIBU Systems CodeMeter Heap Buffer Overflow Vulnerability in Industrial Products - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-240541.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-240541: WIBU Systems CodeMeter Heap Buffer Overflow Vulnerability in Industrial Products - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-240541.txt"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-23-257-06 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2023/icsa-23-257-06.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-23-257-06 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/ICSA-23-257-06"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/topics/industrial-control-systems"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
      }
    ],
    "title": "Siemans WIBU Systems CodeMeter",
    "tracking": {
      "current_release_date": "2023-09-12T00:00:00Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1"
        }
      },
      "id": "ICSA-23-257-06",
      "initial_release_date": "2023-09-12T00:00:00Z",
      "revision_history": [
        {
          "date": "2023-09-12T00:00:00Z",
          "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/\u003cV14.2023-08-23",
                "product": {
                  "name": "PSS(R)CAPE V14",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "PSS(R)CAPE V14"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV15.0.22",
                "product": {
                  "name": "PSS(R)CAPE V15",
                  "product_id": "2"
                }
              }
            ],
            "category": "product_name",
            "name": "PSS(R)CAPE V15"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV34.9.6",
                "product": {
                  "name": "PSS(R)E V34",
                  "product_id": "3"
                }
              }
            ],
            "category": "product_name",
            "name": "PSS(R)E V34"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "PSS(R)E V35",
                  "product_id": "4"
                }
              }
            ],
            "category": "product_name",
            "name": "PSS(R)E V35"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "PSS(R)ODMS V13.0",
                  "product_id": "5"
                }
              }
            ],
            "category": "product_name",
            "name": "PSS(R)ODMS V13.0"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV13.1.12.1",
                "product": {
                  "name": "PSS(R)ODMS V13.1",
                  "product_id": "6"
                }
              }
            ],
            "category": "product_name",
            "name": "PSS(R)ODMS V13.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC PCS neo V3",
                  "product_id": "7"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PCS neo V3"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC PCS neo V4",
                  "product_id": "8"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PCS neo V4"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC WinCC OA V3.17",
                  "product_id": "9"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC OA V3.17"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC WinCC OA V3.18",
                  "product_id": "10"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC OA V3.18"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV3.19 P006",
                "product": {
                  "name": "SIMATIC WinCC OA V3.19",
                  "product_id": "11"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC OA V3.19"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMIT Simulation Platform",
                  "product_id": "12"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMIT Simulation Platform"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SINEC INS",
                  "product_id": "13"
                }
              }
            ],
            "category": "product_name",
            "name": "SINEC INS"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SINEMA Remote Connect",
                  "product_id": "14"
                }
              }
            ],
            "category": "product_name",
            "name": "SINEMA Remote Connect"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-3935",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "summary",
          "text": "In CodeMeter Runtime versions up to 7.60b, there is a heap buffer overflow vulnerability which can potentially lead to a remote code execution. Currently, no PoC is known to us. To\r\nexploit the heap overflow, additional protection mechanisms need to be broken. Remote access is only possible if CodeMeter is configured as a server. If CodeMeter is not configured as a server, the adversary would need to log in to the machine where the CodeMeter Runtime is running or trick the user into sending a malicious request to CodeMeter. This might result in an escalation of privilege. (WIBU-230704-01)",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11",
          "12",
          "13",
          "14"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "If CodeMeter Runtime is configured as server: Limit remote access to systems where the CodeMeter Runtime network server is running",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14"
          ]
        },
        {
          "category": "mitigation",
          "details": "Ensure that only trusted persons have access to the system and avoid the configuration of additional local accounts",
          "product_ids": [
            "12"
          ]
        },
        {
          "category": "mitigation",
          "details": "For affected versions: Install WIBU Systems CodeMeter Runtime V7.60c or later version manually to fix the issue: Download the package from \nhttps://www.wibu.com/support/user/user-software.html and follow the installation instructions from WIBU Systems.",
          "product_ids": [
            "2",
            "3",
            "6"
          ]
        },
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
          "product_ids": [
            "7",
            "13",
            "14"
          ]
        },
        {
          "category": "none_available",
          "details": "Currently no fix is available",
          "product_ids": [
            "8",
            "9",
            "10"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V13.1.12.1 or later version",
          "product_ids": [
            "6"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V15.0.22 or later version",
          "product_ids": [
            "2"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.19 P006 or later version",
          "product_ids": [
            "11"
          ],
          "url": "https://www.winccoa.com/downloads/category/versions-patches.html"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V34.9.6 or later version",
          "product_ids": [
            "3"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Install WIBU Systems CodeMeter Runtime V7.60c or later version manually to fix the issue: Download the package from \nhttps://www.wibu.com/support/user/user-software.html  and follow the installation instructions from WIBU Systems.",
          "product_ids": [
            "4",
            "12"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "CAPE V14 installations installed from material dated 2023-08-23 or later are not affected, as they contain a fixed version of CodeMeter Runtime.\n\nFor installations of CAPE V14 using material earlier than 2023-08-23: Install WIBU Systems CodeMeter Runtime V7.60c or later version manually to fix the issue: Download the package from https://www.wibu.com/support/user/user-software.html and follow the installation instructions from WIBU Systems.",
          "product_ids": [
            "1"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Install WIBU Systems CodeMeter Runtime V7.60c or later version manually to \ufb01x the issue: Download the package from \nhttps://www.wibu.com/support/user/user-software.html and follow the installation instructions from WIBU Systems.",
          "product_ids": [
            "5"
          ]
        },
        {
          "category": "workaround",
          "details": "If CodeMeter Runtime is configured as client only in the affected product: Ensure that only trusted persons have access to the system and avoid the configuration of additional local accounts",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.0,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14"
          ]
        }
      ],
      "title": "CVE-2023-3935"
    }
  ]
}