Vulnerability-Lookup

CVE-2020-28395 (GCVE-0-2020-28395)

Vulnerability from cvelistv5 – Published: 2021-01-12 00:00 – Updated: 2024-08-04 16:33

Summary

A vulnerability has been identified in SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0). Devices do not create a new unique private key after factory reset. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.

Severity ?

No CVSS data available.

CWE

CWE-321 - Use of Hard-coded Cryptographic Key

Assigner

siemens

References

URL

ICSA-21-012-02

Vulnerability from csaf_cisa - Published: 2021-01-12 00:00 - Updated: 2022-12-13 00:00

Summary

Siemens SCALANCE X Switches (Update B)

Notes

Summary

SCALANCE X devices might not generate a unique random key after factory reset, and use a private key shipped with the firmware. Siemens has released updates for the affected products and recommends to update to the latest versions.

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

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.

Legal Notice

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/.

Advisory Conversion Disclaimer

This CISA CSAF advisory was converted from Siemens ProductCERT's CSAF advisory.

Critical infrastructure sectors

Multiple

Countries/areas deployed

Worldwide

Company headquarters location

Germany

Recommended Practices

CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.

Recommended Practices

Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.

Recommended Practices

Locate control system networks and remote devices behind firewalls and isolate them from business networks.

Recommended Practices

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.

Recommended Practices

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

Recommended Practices

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.

Recommended Practices

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.

Recommended Practices

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

JSON

To clipboard

{
  "document": {
    "acknowledgments": [
      {
        "organization": "Siemens ProductCERT",
        "summary": "reporting these vulnerabilities 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/"
      }
    },
    "notes": [
      {
        "category": "summary",
        "text": "SCALANCE X devices might not generate a unique random key\nafter factory reset, and use a private key shipped with the firmware.\n\nSiemens has released updates for the affected products and recommends to update to the latest versions.",
        "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: \nhttps://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"
      },
      {
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        "text": "Multiple",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
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        "text": "Germany",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.",
        "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"
      },
      {
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        "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"
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    "publisher": {
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      "contact_details": "central@cisa.dhs.gov",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
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        "category": "self",
        "summary": "SSA-274900: Use of Hardcoded Key in SCALANCE X Devices Under Certain Conditions - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-274900.json"
      },
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        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-274900.txt"
      },
      {
        "category": "self",
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        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf"
      },
      {
        "category": "self",
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        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-012-02.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-21-012-02 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-21-012-02"
      },
      {
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        "url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01"
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        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
      },
      {
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        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/topics/industrial-control-systems"
      },
      {
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        "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"
      },
      {
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        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
      }
    ],
    "title": "Siemens SCALANCE X Switches (Update B)",
    "tracking": {
      "current_release_date": "2022-12-13T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-21-012-02",
      "initial_release_date": "2021-01-12T00:00:00.000000Z",
      "revision_history": [
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          "date": "2021-01-12T00:00:00.000000Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2021-02-09T00:00:00.000000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added update information for SCALANCE X-200IRT switch family"
        },
        {
          "date": "2021-09-14T00:00:00.000000Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Added solution for SCALANCE X-200 switch family"
        },
        {
          "date": "2022-12-13T00:00:00.000000Z",
          "legacy_version": "1.3",
          "number": "4",
          "summary": "Added SCALANCE X-200RNA switch family"
        }
      ],
      "status": "final",
      "version": "4"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV5.2.5",
                "product": {
                  "name": "SCALANCE X-200 switch family (incl. SIPLUS NET variants)",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200 switch family (incl. SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV5.5.0",
                "product": {
                  "name": "SCALANCE X-200IRT switch family (incl. SIPLUS NET variants)",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200IRT switch family (incl. SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV3.2.7",
                "product": {
                  "name": "SCALANCE X-200RNA switch family",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200RNA switch family"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV4.1.0",
                "product": {
                  "name": "SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants)",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants)"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-28391",
      "cwe": {
        "id": "CWE-321",
        "name": "Use of Hard-coded Cryptographic Key"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Devices create a new unique key upon factory reset, except when used\nwith C-PLUG. When used with C-PLUG the devices use the hardcoded private RSA-key\nshipped with the firmware-image. An attacker could leverage this situation to a\nman-in-the-middle situation and decrypt previously captured traffic.\n\n\n",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Update the default selfsigned device X.509 certificates with own trusted  certificates",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        },
        {
          "category": "mitigation",
          "details": "Update the default hardcoded X.509 certificates from the firmware image (fingerprints SHA-1: \nF2:C8:3B:8F:86:27:74:AA:60:EC:D4:A0:CF:0D:BE:A6:D1:FE:22:12 and SHA-256: 25:60:DB:B3: F9:07:9D:69:0E:DD:A9:EB:4E:1C:D5:8E:AF:79:16:C3:C8:13:A6:F6:59:AD:05:E4:6F:77:F7:72 - fingerprints for X-200RNA switch devices SHA-1: 04:64:EF:98:A4:42:D2:BB:57:4A:47:12:20:EC:E6:85:15:4F:03:61 and SHA-256: 9C:15:FA:56:ED:FF:CA:8D:17:16:E9:2C:57:CB:90:3C:4E:81:5B:3D:60:E9:CF:26:07:B3:73:F6:C7:02:75:88)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.2.5 or later version",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "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": [
            "CSAFPID-0002"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109792534/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.2.7 or later version",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109814809/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:U/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        }
      ],
      "title": "CVE-2020-28391"
    },
    {
      "cve": "CVE-2020-28395",
      "cwe": {
        "id": "CWE-321",
        "name": "Use of Hard-coded Cryptographic Key"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Devices do not create a new unique private key after factory reset.  An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.\n\n\n",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0003",
          "CSAFPID-0004"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Update the default selfsigned device X.509 certificates with own trusted  certificates",
          "product_ids": [
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "mitigation",
          "details": "Update the default hardcoded X.509 certificates from the firmware image (fingerprints SHA-1: \nF2:C8:3B:8F:86:27:74:AA:60:EC:D4:A0:CF:0D:BE:A6:D1:FE:22:12 and SHA-256: 25:60:DB:B3: F9:07:9D:69:0E:DD:A9:EB:4E:1C:D5:8E:AF:79:16:C3:C8:13:A6:F6:59:AD:05:E4:6F:77:F7:72 - fingerprints for X-200RNA switch devices SHA-1: 04:64:EF:98:A4:42:D2:BB:57:4A:47:12:20:EC:E6:85:15:4F:03:61 and SHA-256: 9C:15:FA:56:ED:FF:CA:8D:17:16:E9:2C:57:CB:90:3C:4E:81:5B:3D:60:E9:CF:26:07:B3:73:F6:C7:02:75:88)",
          "product_ids": [
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.1.0 or later version (for supported devices)",
          "product_ids": [
            "CSAFPID-0004"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109773547/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.2.7 or later version",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109814809/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:U/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        }
      ],
      "title": "CVE-2020-28395"
    }
  ]
}

FKIE_CVE-2020-28395

Vulnerability from fkie_nvd - Published: 2021-01-12 21:15 - Updated: 2024-11-21 05:22

Severity ?

5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

URL	Tags
productcert@siemens.com	https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf	Vendor Advisory
productcert@siemens.com	https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02	Third Party Advisory, US Government Resource, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02	Third Party Advisory, US Government Resource, Vendor Advisory

Impacted products

Vendor	Product	Version
siemens	scalance_xr324-12m_firmware	*
siemens	scalance_xr324-12m	-
siemens	scalance_xr324-12m_ts_firmware	*
siemens	scalance_xr324-12m_ts	-
siemens	scalance_xr324-4m_eec_firmware	*
siemens	scalance_xr324-4m_eec	-
siemens	scalance_xr324-4m_poe_firmware	*
siemens	scalance_xr324-4m_poe	-
siemens	scalance_xr324-4m_poe_ts_firmware	*
siemens	scalance_xr324-4m_poe_ts	-
siemens	scalance_xr324wg_firmware	*
siemens	scalance_xr324wg	-
siemens	scalance_xr326-2c_poe_wg_firmware	*
siemens	scalance_xr326-2c_poe_wg	-
siemens	scalance_xr328-4c_wg_firmware	*
siemens	scalance_xr328-4c_wg	-

JSON

To clipboard

{
  "configurations": [
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CERTFR-2021-AVI-018

Vulnerability from certfr_avis - Published: 2021-01-12 - Updated: 2021-01-12

De multiples vulnérabilités ont été découvertes dans les produits Siemens. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service à distance et une atteinte à l'intégrité des données.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None

Impacted products

Vendor	Product	Description
Siemens	N/A	Les commutateurs de la famille SCALANCE X-200IRT (inclus les variants SIPLUSNET)
Siemens	N/A	Les commutateurs de la famille SCALANCE X-300 (inclus les variants X408 et SIPLUS NET) versions antérieures à V4.1.0
Siemens	N/A	Solid Edge versions antérieures à SE2021MP2
Siemens	N/A	T2Go versions antérieures à V13.1.0
Siemens	N/A	Teamcenter Visualization versions antérieures à V13.1.0 (cette version reste vulnérable aux vulnérabilités CVE-2020-26989, CVE-2020-26990 et CVE-2020-26991)
Siemens	N/A	Les commutateurs de la famille SCALANCE X-200 (inclus les variants SIPLUSNET)

References

Title

Publication Time

GSD-2020-28395

Vulnerability from gsd - Updated: 2023-12-13 01:22

Details

Aliases

CVE-2020-28395

Aliases

CVE-2020-28395

JSON

To clipboard

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}

CNVD-2021-02592

Vulnerability from cnvd - Published: 2021-01-13

Title

Scalance X Products硬编码加密密钥漏洞（CNVD-2021-02592）

Description

SCALANCE X是一个开关用于连接工业部件，例如：可编程逻辑控制器(plc)或人机界面(HMIs)。 Scalance X Products硬编码加密密钥漏洞，攻击者可以利用该漏洞处理中间人的情况并解密先前捕获的信息流量。

Severity

高

Patch Name

Scalance X Products硬编码加密密钥漏洞（CNVD-2021-02592）的补丁

Patch Description

SCALANCE X是一个开关用于连接工业部件，例如：可编程逻辑控制器(plc)或人机界面(HMIs)。 Scalance X Products硬编码加密密钥漏洞，攻击者可以利用该漏洞处理中间人的情况并解密先前捕获的信息流量。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布相关漏洞补丁链接，请及时更新： https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf

Reference

https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf

Impacted products

Name
SIEMENS SCALANCE X-300 switch family (incl. X408 andSIPLUS NET variants) <V4.1.0

Show details on source website

JSON

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  "patchName": "Scalance X Products\u786c\u7f16\u7801\u52a0\u5bc6\u5bc6\u94a5\u6f0f\u6d1e\uff08CNVD-2021-02592\uff09\u7684\u8865\u4e01",
  "products": {
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}

VAR-202101-0487

Vulnerability from variot - Updated: 2024-11-23 20:32

Show details on source website

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GHSA-VFW8-4P7F-CJJH

Vulnerability from github – Published: 2022-05-24 17:38 – Updated: 2022-12-13 18:30

Details

A vulnerability has been identified in SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0). Devices do not create a new unique private key after factory reset. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.

Severity ?

5.9 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2020-28395"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-321",
      "CWE-798"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-01-12T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability has been identified in SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions \u003c V4.1.0). Devices do not create a new unique private key after factory reset. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.",
  "id": "GHSA-vfw8-4p7f-cjjh",
  "modified": "2022-12-13T18:30:27Z",
  "published": "2022-05-24T17:38:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28395"
    },
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      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf"
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      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-061"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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.

Action not permitted

CVE-2020-28395 (GCVE-0-2020-28395)

ICSA-21-012-02

FKIE_CVE-2020-28395

CERTFR-2021-AVI-018

Solution

GSD-2020-28395

CNVD-2021-02592

VAR-202101-0487

GHSA-VFW8-4P7F-CJJH

Tags

Sightings

Nomenclature