SSA-139628

Vulnerability from csaf_siemens - Published: 2021-01-12 00:00 - Updated: 2021-09-14 00:00
Summary
SSA-139628: Vulnerabilities in Web Server for Scalance X Products

Notes

Summary
Several SCALANCE X switches contain vulnerabilities in the web server of the affected devices. An unauthenticated attacker could reboot, cause denial-of-service conditions and potentially impact the system by other means through heap and buffer overflow vulnerabilities. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available.
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": "Siemens Security Advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited.",
      "tlp": {
        "label": "WHITE"
      }
    },
    "notes": [
      {
        "category": "summary",
        "text": "Several SCALANCE X switches contain vulnerabilities in the web server of the affected devices.\n\nAn unauthenticated attacker could reboot, cause denial-of-service conditions and potentially impact the system by other means through heap and buffer overflow vulnerabilities.\n\nSiemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific 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: 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": "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-139628: Vulnerabilities in Web Server for Scalance X Products - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-139628.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-139628: Vulnerabilities in Web Server for Scalance X Products - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-139628.txt"
      },
      {
        "category": "self",
        "summary": "SSA-139628: Vulnerabilities in Web Server for Scalance X Products - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-139628.json"
      }
    ],
    "title": "SSA-139628: Vulnerabilities in Web Server for Scalance X Products",
    "tracking": {
      "current_release_date": "2021-09-14T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-139628",
      "initial_release_date": "2021-01-12T00:00:00Z",
      "revision_history": [
        {
          "date": "2021-01-12T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2021-02-09T00:00:00Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added update information for SCALANCE X-200IRT switch family"
        },
        {
          "date": "2021-09-14T00:00:00Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Added solution for SCALANCE X-200 switch family"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V5.2.5",
                "product": {
                  "name": "SCALANCE X-200 switch family (incl. SIPLUS NET variants)",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200 switch family (incl. SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V5.5.0",
                "product": {
                  "name": "SCALANCE X-200IRT switch family (incl. SIPLUS NET variants)",
                  "product_id": "2"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200IRT switch family (incl. SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V4.1.0",
                "product": {
                  "name": "SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants)",
                  "product_id": "3"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants)"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-15799",
      "cwe": {
        "id": "CWE-306",
        "name": "Missing Authentication for Critical Function"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The vulnerability could allow an unauthenticated attacker to reboot the device over the network by using special urls from integrated web server of the affected products.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2"
        ]
      },
      "references": [
        {
          "summary": "CVE-2020-15799 - SCALANCE X-200 switch family (incl. SIPLUS NET variants)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109801131/"
        },
        {
          "summary": "CVE-2020-15799 - SCALANCE X-200IRT switch family (incl. SIPLUS NET variants)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109792534/"
        },
        {
          "summary": "CVE-2020-15799 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-15799.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V5.2.5 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109801131/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.5.0 or later version",
          "product_ids": [
            "2"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109792534/"
        },
        {
          "category": "mitigation",
          "details": "Limit network traffic of web servers of Scalance X switches to trusted connections by firewall rules (port 443/tcp).",
          "product_ids": [
            "1",
            "2"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/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"
          ]
        }
      ],
      "title": "CVE-2020-15799"
    },
    {
      "cve": "CVE-2020-15800",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The webserver of the affected devices contains a vulnerability that may lead to a heap overflow condition. An attacker could cause this condition on the webserver by sending specially crafted requests. This could stop the webserver temporarily.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "references": [
        {
          "summary": "CVE-2020-15800 - SCALANCE X-200 switch family (incl. SIPLUS NET variants)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109801131/"
        },
        {
          "summary": "CVE-2020-15800 - SCALANCE X-200IRT switch family (incl. SIPLUS NET variants)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109792534/"
        },
        {
          "summary": "CVE-2020-15800 - SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109773547/"
        },
        {
          "summary": "CVE-2020-15800 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-15800.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V5.2.5 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109801131/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.5.0 or later version",
          "product_ids": [
            "2"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109792534/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.1.0 or later version",
          "product_ids": [
            "3"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109773547/"
        },
        {
          "category": "mitigation",
          "details": "Limit network traffic of web servers of Scalance X switches to trusted connections by firewall rules (port 443/tcp).",
          "product_ids": [
            "1",
            "2",
            "3"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3"
          ]
        }
      ],
      "title": "CVE-2020-15800"
    },
    {
      "cve": "CVE-2020-25226",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The web server of the affected devices contains a vulnerability that may lead to a buffer overflow condition. An attacker could cause this condition on the webserver by sending a specially crafted request. The webserver could stop and not recover anymore.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2"
        ]
      },
      "references": [
        {
          "summary": "CVE-2020-25226 - SCALANCE X-200 switch family (incl. SIPLUS NET variants)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109801131/"
        },
        {
          "summary": "CVE-2020-25226 - SCALANCE X-200IRT switch family (incl. SIPLUS NET variants)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109792534/"
        },
        {
          "summary": "CVE-2020-25226 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-25226.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V5.2.5 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109801131/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.5.0 or later version",
          "product_ids": [
            "2"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109792534/"
        },
        {
          "category": "mitigation",
          "details": "Limit network traffic of web servers of Scalance X switches to trusted connections by firewall rules (port 443/tcp).",
          "product_ids": [
            "1",
            "2"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2"
          ]
        }
      ],
      "title": "CVE-2020-25226"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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