VDE-2024-066

Vulnerability from csaf_helmholzgmbhcokg - Published: 2024-10-15 08:00 - Updated: 2025-08-27 10:00
Summary
Helmholz: Multiple Vulnerabilities in Helmholz REX100 Product
Notes
Summary: Multiple vulnerabilities have been discovered in REX100 allowing for RCE or unauthorized file access.
Impact: CVE-2024-45271, CVE-2024-45274 and CVE-2024-45275 allow remote code execution with system privileges, resulting in full compromise of the device. CVE-2024-45273 allows undetectable tampering and manipulation of encrypted configuration files. CVE-2024-45276 allows unauthenticated access to potential sensitive files.
Remediation: Update REX100 to the version 2.3.1
CVE-2024-45274

An unauthenticated remote attacker can execute OS commands via UDP on the device due to missing authentication.

9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-306 - Missing Authentication for Critical Function
Affected products
Product Identifier Version Remediation
Unresolved product id: CSAFPID-32001 —
Product Identifier Version Remediation
Unresolved product id: CSAFPID-31005 —
Vendor Fix
CVE-2024-45275

The devices contain two hard coded user accounts with hardcoded passwords that allow an unauthenticated remote attacker for full control of the affected devices.

9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-798 - Use of Hard-coded Credentials
Affected products
Product Identifier Version Remediation
Unresolved product id: CSAFPID-32001 —
Product Identifier Version Remediation
Unresolved product id: CSAFPID-31005 —
Vendor Fix
CVE-2024-45271

An unauthenticated local attacker can gain admin privileges by deploying a config file due to improper input validation.

8.4 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Affected products
Product Identifier Version Remediation
Unresolved product id: CSAFPID-32001 —
Product Identifier Version Remediation
Unresolved product id: CSAFPID-31005 —
Vendor Fix
CVE-2024-45273

An unauthenticated local attacker can decrypt the devices config file and therefore compromise the device due to a weak implementation of the encryption used.

8.4 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-261 - Weak Encoding for Password
Affected products
Product Identifier Version Remediation
Unresolved product id: CSAFPID-32001 —
Product Identifier Version Remediation
Unresolved product id: CSAFPID-31005 —
Vendor Fix
CVE-2024-45276

An unauthenticated remote attacker can get read access to files in the "/tmp" directory due to missing authentication.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-552 - Files or Directories Accessible to External Parties
Affected products
Product Identifier Version Remediation
Unresolved product id: CSAFPID-32001 —
Product Identifier Version Remediation
Unresolved product id: CSAFPID-31005 —
Vendor Fix
References
Acknowledgments
CERT@VDE certvde.com
SySS GmbH Moritz Abrell www.syss.de
To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "organization": "CERT@VDE",
        "summary": "coordination",
        "urls": [
          "https://certvde.com"
        ]
      },
      {
        "names": [
          "Moritz Abrell"
        ],
        "organization": "SySS GmbH",
        "summary": "reporting",
        "urls": [
          "https://www.syss.de"
        ]
      }
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    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
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    "notes": [
      {
        "category": "summary",
        "text": "Multiple vulnerabilities have been discovered in REX100 allowing for RCE or unauthorized file access.",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "CVE-2024-45271, CVE-2024-45274 and CVE-2024-45275 allow remote code execution with system privileges, resulting in full compromise of the device.\n\nCVE-2024-45273 allows undetectable tampering and manipulation of encrypted configuration files.\n\nCVE-2024-45276 allows unauthenticated access to potential sensitive files.",
        "title": "Impact"
      },
      {
        "category": "description",
        "text": "Update REX100 to the version 2.3.1",
        "title": "Remediation"
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    "publisher": {
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      "contact_details": "psirt@helmholz.de",
      "name": "Helmholz GmbH \u0026 Co. KG",
      "namespace": "https://www.helmholz.de"
    },
    "references": [
      {
        "category": "external",
        "summary": "Product security incident reports",
        "url": "https://helmholz.com/security-advice"
      },
      {
        "category": "external",
        "summary": "CERT@VDE Security Advisories for Helmholz",
        "url": "https://certvde.com/en/advisories/vendor/helmholz"
      },
      {
        "category": "self",
        "summary": "VDE-2024-066: Helmholz: Multiple Vulnerabilities in Helmholz REX100 Product - HTML",
        "url": "https://certvde.com/en/advisories/VDE-2024-066"
      },
      {
        "category": "self",
        "summary": "VDE-2024-066: Helmholz: Multiple Vulnerabilities in Helmholz REX100 Product - CSAF",
        "url": "https://helmholz.csaf-tp.certvde.com/.well-known/csaf/white/2024/vde-2024-066.json"
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    ],
    "title": "Helmholz: Multiple Vulnerabilities in Helmholz REX100 Product",
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          "date": "2024-10-15T08:00:00.000Z",
          "number": "1.0.0",
          "summary": "Initial revision."
        },
        {
          "date": "2024-11-06T11:27:01.000Z",
          "number": "1.0.1",
          "summary": "Fix: correct certvde domain, added self-reference"
        },
        {
          "date": "2025-03-12T13:30:00.000Z",
          "number": "1.0.2",
          "summary": "removed spaces around version operators"
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  "product_tree": {
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            "category": "product_family",
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          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=2.2.13",
                "product": {
                  "name": "Firmware \u003c=2.2.13",
                  "product_id": "CSAFPID-21004"
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  "vulnerabilities": [
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      "cwe": {
        "id": "CWE-306",
        "name": "Missing Authentication for Critical Function"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "An unauthenticated remote attacker can execute OS commands via UDP on the device due to missing authentication.",
          "title": "Vulnerability Description"
        }
      ],
      "product_status": {
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        "known_affected": [
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          "details": "Update REX100 to the version 2.3.1",
          "product_ids": [
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      ],
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            "attackVector": "NETWORK",
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            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
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            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
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            "userInteraction": "NONE",
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            "version": "3.1"
          },
          "products": [
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          ]
        }
      ],
      "title": "CVE-2024-45274"
    },
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        "name": "Use of Hard-coded Credentials"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "The devices contain two hard coded user accounts with hardcoded passwords that allow an unauthenticated remote attacker for full control of the affected devices.",
          "title": "Vulnerability Description"
        }
      ],
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            "CSAFPID-31005"
          ]
        }
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            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 9.8,
            "environmentalSeverity": "CRITICAL",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
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          },
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          ]
        }
      ],
      "title": "CVE-2024-45275"
    },
    {
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        "name": "Improper Control of Generation of Code (\u0027Code Injection\u0027)"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "An unauthenticated local attacker can gain admin privileges by deploying a config file due to improper input validation.",
          "title": "Vulnerability Description"
        }
      ],
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        }
      ],
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        {
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 8.4,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
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      ],
      "title": "CVE-2024-45271"
    },
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        "name": "Weak Encoding for Password"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "An unauthenticated local attacker can decrypt the devices config file and therefore compromise the device due to a weak implementation of the encryption used.",
          "title": "Vulnerability Description"
        }
      ],
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        ],
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          "product_ids": [
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          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
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            "environmentalSeverity": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
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            "version": "3.1"
          },
          "products": [
            "CSAFPID-31005"
          ]
        }
      ],
      "title": "CVE-2024-45273"
    },
    {
      "cve": "CVE-2024-45276",
      "cwe": {
        "id": "CWE-552",
        "name": "Files or Directories Accessible to External Parties"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "An unauthenticated remote attacker can get read access to files in the \"/tmp\" directory due to missing authentication.",
          "title": "Vulnerability Description"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-32001"
        ],
        "known_affected": [
          "CSAFPID-31005"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update REX100 to the version 2.3.1",
          "product_ids": [
            "CSAFPID-31005"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "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:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-31005"
          ]
        }
      ],
      "title": "CVE-2024-45276"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.