VDE-2024-044

Vulnerability from csaf_helmholzgmbhcokg - Published: 2024-07-31 08:00 - Updated: 2025-05-14 12:28
Summary
Helmholz: Multiple products are vulnerable to regreSSHion
Notes
Summary: Several Helmholz products are vulnerable to a possible race condition vulnerability in OpenSSH named "regreSSHion".
Impact: Possible full system compromise where an attacker can execute arbitrary code with the highest privileges.
Mitigation: Prevent all access to the sshd daemon listening on port 22.
Remediation: Update to latest firmware: * 2.16.1 for myREX24 V2/myREX24 V2 virtual * 8.2.0 for REX200/REX250
CVE-2024-6387

A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead to sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.

8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Mitigation Prevent all access to the sshd daemon listening on port 22.
Vendor Fix Update to latest firmware: * 2.16.1 for myREX24 V2/myREX24 V2 virtual * 8.2.0 for REX200/REX250
References
Acknowledgments
CERTVDE certvde.com
To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "organization": "CERTVDE",
        "summary": "coordination",
        "urls": [
          "https://certvde.com"
        ]
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-GB",
    "notes": [
      {
        "category": "summary",
        "text": "Several Helmholz products are vulnerable to a possible race condition vulnerability in OpenSSH named \"regreSSHion\".",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "Possible full system compromise where an attacker can execute arbitrary code with the highest privileges.",
        "title": "Impact"
      },
      {
        "category": "description",
        "text": "Prevent all access to the sshd daemon listening on port 22.",
        "title": "Mitigation"
      },
      {
        "category": "description",
        "text": "Update to latest firmware: \n\n * 2.16.1 for myREX24 V2/myREX24 V2 virtual \n * 8.2.0 for REX200/REX250",
        "title": "Remediation"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@helmholz.de",
      "name": "Helmholz GmbH \u0026 Co. KG",
      "namespace": "https://www.helmholz.de"
    },
    "references": [
      {
        "category": "external",
        "summary": "psirt@helmholz.de",
        "url": "https://www.helmholz.de"
      },
      {
        "category": "external",
        "summary": "CERT@VDE Security Advisories",
        "url": "https://certvde.com/en/advisories/vendor/helmholz/"
      },
      {
        "category": "self",
        "summary": "VDE-2024-044: Helmholz: Multiple products are vulnerable to regreSSHion - HTML",
        "url": "https://certvde.com/en/advisories/VDE-2024-044/"
      },
      {
        "category": "self",
        "summary": "VDE-2024-044: Helmholz: Multiple products are vulnerable to regreSSHion - CSAF",
        "url": "https://helmholz.csaf-tp.certvde.com/.well-known/csaf/white/2024/vde-2024-044.json"
      }
    ],
    "title": "Helmholz: Multiple products are vulnerable to regreSSHion",
    "tracking": {
      "aliases": [
        "VDE-2024-044"
      ],
      "current_release_date": "2025-05-14T12:28:19.000Z",
      "generator": {
        "date": "2024-09-25T09:30:45.003Z",
        "engine": {
          "name": "Secvisogram",
          "version": "2.5.12"
        }
      },
      "id": "VDE-2024-044",
      "initial_release_date": "2024-07-31T08:00:00.000Z",
      "revision_history": [
        {
          "date": "2024-07-31T08:00:00.000Z",
          "number": "1",
          "summary": "initial revision"
        },
        {
          "date": "2025-05-14T12:28:19.000Z",
          "number": "2",
          "summary": "Fix: version space, added distribution"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "myREX24 V2",
                "product": {
                  "name": "myREX24 V2",
                  "product_id": "CSAFPID-11001"
                }
              },
              {
                "category": "product_name",
                "name": "myREX24 V2 virtual",
                "product": {
                  "name": "myREX24 V2 virtual",
                  "product_id": "CSAFPID-11002"
                }
              },
              {
                "category": "product_name",
                "name": "REX200",
                "product": {
                  "name": "REX200",
                  "product_id": "CSAFPID-11003"
                }
              },
              {
                "category": "product_name",
                "name": "REX250",
                "product": {
                  "name": "REX250",
                  "product_id": "CSAFPID-11004"
                }
              }
            ],
            "category": "product_family",
            "name": "Hardware"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c2.16.1",
                "product": {
                  "name": "Firmware \u003c2.16.1",
                  "product_id": "CSAFPID-21001"
                }
              },
              {
                "category": "product_version",
                "name": "2.16.1",
                "product": {
                  "name": "Firmware 2.16.1",
                  "product_id": "CSAFPID-22001"
                }
              },
              {
                "category": "product_version_range",
                "name": "8.0.0\u003c8.2.0",
                "product": {
                  "name": "Firmware 8.0.0\u003c8.2.0",
                  "product_id": "CSAFPID-21003"
                }
              },
              {
                "category": "product_version",
                "name": "8.2.0",
                "product": {
                  "name": "Firmware 8.2.0",
                  "product_id": "CSAFPID-22003"
                }
              }
            ],
            "category": "product_family",
            "name": "Firmware"
          }
        ],
        "category": "vendor",
        "name": "Helmholz GmbH \u0026 Co. KG"
      }
    ],
    "product_groups": [
      {
        "group_id": "CSAFGID-0001",
        "product_ids": [
          "CSAFPID-31001",
          "CSAFPID-31002",
          "CSAFPID-31003",
          "CSAFPID-31004"
        ],
        "summary": "Affected Products"
      },
      {
        "group_id": "CSAFGID-0002",
        "product_ids": [
          "CSAFPID-32001",
          "CSAFPID-32002",
          "CSAFPID-32003",
          "CSAFPID-32004"
        ],
        "summary": "Fixed Products"
      }
    ],
    "relationships": [
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c2.16.1 installed on myREX24 V2",
          "product_id": "CSAFPID-31001"
        },
        "product_reference": "CSAFPID-21001",
        "relates_to_product_reference": "CSAFPID-11001"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 2.16.1 installed on myREX24 V2",
          "product_id": "CSAFPID-32001"
        },
        "product_reference": "CSAFPID-22001",
        "relates_to_product_reference": "CSAFPID-11001"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c2.16.1 installed on myREX24 V2 virtual",
          "product_id": "CSAFPID-31002"
        },
        "product_reference": "CSAFPID-21001",
        "relates_to_product_reference": "CSAFPID-11002"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 2.16.1 installed on myREX24 V2 virtual",
          "product_id": "CSAFPID-32002"
        },
        "product_reference": "CSAFPID-22001",
        "relates_to_product_reference": "CSAFPID-11002"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 8.0.0\u003c8.2.0 installed on REX200",
          "product_id": "CSAFPID-31003"
        },
        "product_reference": "CSAFPID-21003",
        "relates_to_product_reference": "CSAFPID-11003"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 8.2.0 installed on REX200",
          "product_id": "CSAFPID-32003"
        },
        "product_reference": "CSAFPID-22003",
        "relates_to_product_reference": "CSAFPID-11003"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 8.0.0\u003c8.2.0 installed on REX250",
          "product_id": "CSAFPID-31004"
        },
        "product_reference": "CSAFPID-21003",
        "relates_to_product_reference": "CSAFPID-11004"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 8.2.0 installed on REX250",
          "product_id": "CSAFPID-32004"
        },
        "product_reference": "CSAFPID-22003",
        "relates_to_product_reference": "CSAFPID-11004"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-6387",
      "cwe": {
        "id": "CWE-362",
        "name": "Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "A security regression (CVE-2006-5051) was discovered in OpenSSH\u0027s server (sshd). There is a race condition which can lead to sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.",
          "title": "Vulnerability Description"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-32001",
          "CSAFPID-32002",
          "CSAFPID-32003",
          "CSAFPID-32004"
        ],
        "known_affected": [
          "CSAFPID-31001",
          "CSAFPID-31002",
          "CSAFPID-31003",
          "CSAFPID-31004"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Prevent all access to the sshd daemon listening on port 22.",
          "group_ids": [
            "CSAFGID-0001"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to latest firmware: \n\n * 2.16.1 for myREX24 V2/myREX24 V2 virtual \n * 8.2.0 for REX200/REX250",
          "group_ids": [
            "CSAFGID-0001"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 8.1,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 8.1,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-31001",
            "CSAFPID-31002",
            "CSAFPID-31003",
            "CSAFPID-31004"
          ]
        }
      ],
      "title": "CVE-2024-6387"
    }
  ]
}


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