VDE-2024-067

Vulnerability from csaf_phoenixcontactgmbhcokg - Published: 2024-10-08 12:00 - Updated: 2025-05-14 13:00
Summary
Phoenix Contact: Multiple Vulnerabilities in PLCnext Engineer
Severity
High
Notes
Summary: Vulnerabilities in .NET and Visual Studio functions System.Text.Json, System.Formats.Asn1, OPCFoundation.NetStandard.Opc.Ua.Core allow an remote attacker to execute a Denial-of-Servce attack.
Impact: Availability of an application programming workstation might be compromised by attacks using these vulnerabilities.
Mitigation: To mitigate the vulnerabilities and to ensure the availability of the PLCnext Engineer please ensure that only data from trusted sources are used.
Remediation: Phoenix Contact recommends affected users to update to the current PLCnext Engineer 2024.0.4 LTS or 2024.6 which fixes the vulnerabilities.
Product Description: Engineering software platform for Phoenix Contact automation controllers. PLCnext Engineer is IEC 61131-3-compliant.
General Recommendation: For general information and recommendations on security measures to protect network-enabled\ndevices, refer to the application note: [Application Note Security]( https://dam-mdc.phoenixcontact.com/asset/156443151564/0a870ae433c19148b80bd760f3a1c1f2/107913_en_03.pdf).
CVE-2024-30105

.NET Core and Visual Studio Denial of Service Vulnerability. Details: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30105

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 - Uncontrolled Resource Consumption
Vendor Fix Phoenix Contact recommends affected users to update to the current PLCnext Engineer 2024.0.4 LTS or 2024.6 which fixes the vulnerabilities.
CVE-2024-33862

A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.05.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system. Details: https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-33862.pdf

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Vendor Fix Phoenix Contact recommends affected users to update to the current PLCnext Engineer 2024.0.4 LTS or 2024.6 which fixes the vulnerabilities.
CVE-2024-38095

.NET and Visual Studio Denial of Service Vulnerability. Details: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38095

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-20 - Improper Input Validation
Vendor Fix Phoenix Contact recommends affected users to update to the current PLCnext Engineer 2024.0.4 LTS or 2024.6 which fixes the vulnerabilities.
References
Acknowledgments
CERT@VDE certvde.com
To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "organization": "CERT@VDE",
        "summary": "the coordination and support with this publication.",
        "urls": [
          "https://certvde.com"
        ]
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    ],
    "aggregate_severity": {
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      "text": "High"
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    "category": "csaf_security_advisory",
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      {
        "category": "summary",
        "text": "Vulnerabilities in .NET and Visual Studio functions System.Text.Json, System.Formats.Asn1, OPCFoundation.NetStandard.Opc.Ua.Core allow an remote attacker to execute a Denial-of-Servce attack.",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "Availability of an application programming workstation might be compromised by attacks using these vulnerabilities.",
        "title": "Impact"
      },
      {
        "category": "description",
        "text": "To mitigate the vulnerabilities and to ensure the availability of the PLCnext Engineer please ensure that only data from trusted sources are used.",
        "title": "Mitigation"
      },
      {
        "category": "description",
        "text": "Phoenix Contact recommends affected users to update to the current PLCnext Engineer 2024.0.4 LTS or 2024.6 which fixes the vulnerabilities.",
        "title": "Remediation"
      },
      {
        "category": "description",
        "text": "Engineering software platform for Phoenix Contact automation controllers. PLCnext Engineer is IEC 61131-3-compliant.",
        "title": "Product Description"
      },
      {
        "category": "general",
        "text": "For general information and recommendations on security measures to protect network-enabled\\ndevices, refer to the application note: [Application Note Security](\nhttps://dam-mdc.phoenixcontact.com/asset/156443151564/0a870ae433c19148b80bd760f3a1c1f2/107913_en_03.pdf).",
        "title": "General Recommendation"
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    ],
    "publisher": {
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    },
    "references": [
      {
        "category": "external",
        "summary": "PCSA-2024/00013",
        "url": "https://phoenixcontact.com/psirt"
      },
      {
        "category": "external",
        "summary": "Phoenix Contact advisory overview at CERT@VDE",
        "url": "https://certvde.com/de/advisories/vendor/phoenixcontact/"
      },
      {
        "category": "external",
        "summary": "Phoenix Contact application note",
        "url": "https://dam-mdc.phoenixcontact.com/asset/156443151564/0a870ae433c19148b80bd760f3a1c1f2/107913_en_03.pdf"
      },
      {
        "category": "self",
        "summary": "VDE-2024-067: Phoenix Contact: Multiple Vulnerabilities in PLCnext Engineer - HTML",
        "url": "https://certvde.com/en/advisories/VDE-2024-067/"
      },
      {
        "category": "self",
        "summary": "VDE-2024-067: Phoenix Contact: Multiple Vulnerabilities in PLCnext Engineer - CSAF",
        "url": "https://phoenixcontact.csaf-tp.certvde.com/.well-known/csaf/white/2024/vde-2024-067.json"
      }
    ],
    "source_lang": "en",
    "title": "Phoenix Contact: Multiple Vulnerabilities in PLCnext Engineer",
    "tracking": {
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      "current_release_date": "2025-05-14T13:00:14.000Z",
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          "date": "2024-10-08T10:00:00.000Z",
          "number": "1",
          "summary": "A new PLCnext Engineer releases fixes known vulnerabilities in open-source libraries utilized by PLCnext Engineer."
        },
        {
          "date": "2024-10-30T13:00:00.000Z",
          "number": "2",
          "summary": "no security related changes\nrevamped product tree"
        },
        {
          "date": "2024-11-06T11:27:01.000Z",
          "number": "3",
          "summary": "Fix: added self-reference"
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        {
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          "number": "4",
          "summary": "Fixed self-reference url"
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        {
          "date": "2025-05-14T13:00:14.000Z",
          "number": "5",
          "summary": "Fix: added distribution"
        }
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      "status": "final",
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                    "name": "\u003c2024.0.4 LTS",
                    "product": {
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                      "product_id": "CSAFPID-51001",
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  "vulnerabilities": [
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      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "notes": [
        {
          "category": "description",
          "text": ".NET Core and Visual Studio Denial of Service Vulnerability.    \nDetails: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30105",
          "title": "Description"
        }
      ],
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          "CSAFPID-52002"
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          "group_ids": [
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          ]
        }
      ],
      "scores": [
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "environmentalScore": 7.5,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
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            "version": "3.1"
          },
          "products": [
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            "CSAFPID-51002"
          ]
        }
      ],
      "title": "CVE-2024-30105"
    },
    {
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      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "notes": [
        {
          "category": "description",
          "text": "A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.05.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.    \n\nDetails: https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-33862.pdf",
          "title": "Description"
        }
      ],
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          "CSAFPID-51002"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Phoenix Contact recommends affected users to update to the current PLCnext Engineer 2024.0.4 LTS or 2024.6 which fixes the vulnerabilities.",
          "group_ids": [
            "CSAFGID-61001"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "environmentalScore": 7.5,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 7.5,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-51001",
            "CSAFPID-51002"
          ]
        }
      ],
      "title": "CVE-2024-33862"
    },
    {
      "cve": "CVE-2024-38095",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "notes": [
        {
          "category": "description",
          "text": ".NET and Visual Studio Denial of Service Vulnerability.     \nDetails: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38095",
          "title": "Description"
        }
      ],
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          "CSAFPID-52002"
        ],
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          "CSAFPID-51002"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Phoenix Contact recommends affected users to update to the current PLCnext Engineer 2024.0.4 LTS or 2024.6 which fixes the vulnerabilities.",
          "group_ids": [
            "CSAFGID-61001"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "environmentalScore": 7.5,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 7.5,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-51001",
            "CSAFPID-51002"
          ]
        }
      ],
      "title": "CVE-2024-38095"
    }
  ]
}


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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.