ICSA-23-180-04

Vulnerability from csaf_cisa - Published: 2023-06-29 06:00 - Updated: 2023-07-11 06:00
Summary
Mitsubishi Electric MELSEC-F Series
Notes
CISA Disclaimer: This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov
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/.
Risk evaluation: Successful exploitation of this vulnerability could allow an attacker to login to the product by sending specially crafted packets.
Critical infrastructure sectors: Critical Manufacturing
Countries/areas deployed: These products are sold in limited regions.
Company headquarters location: Japan
Recommended Practices: CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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/ics. 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.
Recommended Practices: Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics 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.
Recommended Practices: No known public exploits specifically target this vulnerability. This vulnerability is exploitable remotely. This vulnerability has low attack complexity.
Vulnerability Specification: Mitsubishi Electric reports this vulnerability affects the following MELSEC-F Series products if they are used with ethernet communication special adapter FX3U-ENET-ADP or ethernet communication block FX3U-ENET(-L)
CVE-2023-2846
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE-294 - Authentication Bypass by Capture-replay
Mitigation Mitsubishi Electric recommends customers take the following mitigation measures to minimize the risk of an attacker exploiting this vulnerability:
Mitigation Use a firewall or virtual private network (VPN), etc., to prevent unauthorized access when internet access is required.
Mitigation Use within a LAN and block access from untrusted networks and hosts through firewalls.
Mitigation Restrict physical access to affected products and the LAN they connect.
Mitigation For specific update instructions and additional details, see the Mitsubishi Electric advisory. https://www.mitsubishielectric.com/en/psirt/vulne…
References
Acknowledgments
307LAB, Zhejiang University Chun Liu Xin Che Ruilong Deng Peng Cheng Jiming Chen
To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Chun Liu",
          "Xin Che",
          "Ruilong Deng",
          "Peng Cheng",
          "Jiming Chen"
        ],
        "organization": "307LAB, Zhejiang University",
        "summary": "reporting this vulnerability to Mitsubishi Electric"
      }
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    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
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        "text": "This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov",
        "title": "CISA Disclaimer"
      },
      {
        "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": "summary",
        "text": "Successful exploitation of this vulnerability could allow an attacker to login to the product by sending specially crafted packets.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Critical Manufacturing",
        "title": "Critical infrastructure sectors"
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        "text": "These products are sold in limited regions.",
        "title": "Countries/areas deployed"
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        "text": "Japan",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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/ics. 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",
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        "title": "Recommended Practices"
      },
      {
        "category": "general",
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        "title": "Recommended Practices"
      },
      {
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        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "No known public exploits specifically target this vulnerability. This vulnerability is exploitable remotely. This vulnerability has low attack complexity.",
        "title": "Recommended Practices"
      },
      {
        "category": "other",
        "text": "Mitsubishi Electric reports this vulnerability affects the following MELSEC-F Series products if they are used with ethernet communication special adapter FX3U-ENET-ADP or ethernet communication block FX3U-ENET(-L)",
        "title": "Vulnerability Specification"
      }
    ],
    "publisher": {
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      "name": "CISA",
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-2846",
      "cwe": {
        "id": "CWE-294",
        "name": "Authentication Bypass by Capture-replay"
      },
      "notes": [
        {
          "category": "summary",
          "text": "An authentication bypass vulnerability due to authentication bypass by capture-replay exists in the MELSEC-F series main modules.",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
          "CSAFPID-0008",
          "CSAFPID-0009",
          "CSAFPID-0010",
          "CSAFPID-0011",
          "CSAFPID-0012",
          "CSAFPID-0013",
          "CSAFPID-0014",
          "CSAFPID-0015",
          "CSAFPID-0016"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-2846"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Mitsubishi Electric recommends customers take the following mitigation measures to minimize the risk of an attacker exploiting this vulnerability:",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016"
          ]
        },
        {
          "category": "mitigation",
          "details": "Use a firewall or virtual private network (VPN), etc., to prevent unauthorized access when internet access is required.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016"
          ]
        },
        {
          "category": "mitigation",
          "details": "Use within a LAN and block access from untrusted networks and hosts through firewalls.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016"
          ]
        },
        {
          "category": "mitigation",
          "details": "Restrict physical access to affected products and the LAN they connect.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016"
          ]
        },
        {
          "category": "mitigation",
          "details": "For specific update instructions and additional details, see the Mitsubishi Electric advisory.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016"
          ],
          "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-005_en.pdf"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016"
          ]
        }
      ]
    }
  ]
}


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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.