SSA-783481

Vulnerability from csaf_siemens - Published: 2021-03-09 00:00 - Updated: 2024-10-08 00:00
Summary
SSA-783481: Denial-of-Service Vulnerability in LOGO! 8 BM

Notes

Summary
A Denial-of-Service vulnerability has been identified in LOGO! 8 BM. This vulnerability could allow an attacker to crash a device, if a user is tricked into loading a malicious project file onto an affected device. The vulnerability is related to the hardware of the product. Siemens has released new hardware versions with the LOGO! V8.4 BM and the SIPLUS LOGO! V8.4 BM product families for all affected devices in which this vulnerability is fixed. See the chapter "Additional Information" below for more details. For more information please also refer to the related product support article: https://support.industry.siemens.com/cs/ww/en/view/109826554/.
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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        "category": "summary",
        "text": "A Denial-of-Service vulnerability has been identified in LOGO! 8 BM. This vulnerability could allow an attacker to crash a device, if a user is tricked into loading a malicious project file onto an affected device.\n\nThe vulnerability is related to the hardware of the product. Siemens has released new hardware versions with the LOGO! V8.4 BM and the SIPLUS LOGO! V8.4 BM product families for all affected devices in which this vulnerability is fixed. See the chapter \"Additional Information\" below for more details.\n\nFor more information please also refer to the related product support article: \nhttps://support.industry.siemens.com/cs/ww/en/view/109826554/.",
        "title": "Summary"
      },
      {
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        "title": "General Recommendations"
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        "title": "Additional Resources"
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      {
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  "vulnerabilities": [
    {
      "cve": "CVE-2020-25236",
      "cwe": {
        "id": "CWE-755",
        "name": "Improper Handling of Exceptional Conditions"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The control logic (CL) the LOGO! 8 executes could be manipulated in a way that could cause the device\nexecuting the CL to improperly handle the manipulation and crash. After successful execution of the attack, the device needs to be manually reset.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "7",
          "8",
          "3",
          "4",
          "5",
          "6",
          "9",
          "10",
          "15",
          "16",
          "11",
          "12",
          "13",
          "14"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Siemens recommends limiting the possibilities to execute untrusted code if\npossible.",
          "product_ids": [
            "1",
            "2",
            "7",
            "8",
            "3",
            "4",
            "5",
            "6",
            "9",
            "10",
            "15",
            "16",
            "11",
            "12",
            "13",
            "14"
          ]
        },
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
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            "16",
            "11",
            "12",
            "13",
            "14"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:T/RC:C",
            "version": "3.1"
          },
          "products": [
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            "16",
            "11",
            "12",
            "13",
            "14"
          ]
        }
      ],
      "title": "CVE-2020-25236"
    }
  ]
}


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Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.