GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2017-5243 (GCVE-0-2017-5243)

Vulnerability from cvelistv5 – Published: 2017-06-06 16:00 – Updated: 2024-08-05 14:55
VLAI
Summary
The default SSH configuration in Rapid7 Nexpose hardware appliances shipped before June 2017 does not specify desired algorithms for key exchange and other important functions. As a result, it falls back to allowing ALL algorithms supported by the relevant version of OpenSSH and makes the installations vulnerable to a range of MITM, downgrade, and decryption attacks.
CWE
  • CWE-327 - (Use of a Broken or Risky Cryptographic Algorithm)
References
Impacted products
Vendor Product Version CPE status
Rapid7 Nexpose hardware appliance Affected: All Nexpose hardware appliances shipped before June 2017.
guessed Create a notification for this product.
Date Public
2017-05-31 00:00
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T14:55:35.807Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://community.rapid7.com/community/nexpose/blog/2017/05/31/r7-2017-13-nexpose-hardware-appliance-ssh-enabled-obsolete-algorithms-cve-2017-5243"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Nexpose hardware appliance",
          "vendor": "Rapid7",
          "versions": [
            {
              "status": "affected",
              "version": "All Nexpose hardware appliances shipped before June 2017."
            }
          ]
        }
      ],
      "datePublic": "2017-05-31T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The default SSH configuration in Rapid7 Nexpose hardware appliances shipped before June 2017 does not specify desired algorithms for key exchange and other important functions. As a result, it falls back to allowing ALL algorithms supported by the relevant version of OpenSSH and makes the installations vulnerable to a range of MITM, downgrade, and decryption attacks."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-327",
              "description": "CWE-327 (Use of a Broken or Risky Cryptographic Algorithm)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-06-06T15:57:01.000Z",
        "orgId": "9974b330-7714-4307-a722-5648477acda7",
        "shortName": "rapid7"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://community.rapid7.com/community/nexpose/blog/2017/05/31/r7-2017-13-nexpose-hardware-appliance-ssh-enabled-obsolete-algorithms-cve-2017-5243"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@rapid7.com",
          "ID": "CVE-2017-5243",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Nexpose hardware appliance",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All Nexpose hardware appliances shipped before June 2017."
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Rapid7"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The default SSH configuration in Rapid7 Nexpose hardware appliances shipped before June 2017 does not specify desired algorithms for key exchange and other important functions. As a result, it falls back to allowing ALL algorithms supported by the relevant version of OpenSSH and makes the installations vulnerable to a range of MITM, downgrade, and decryption attacks."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-327 (Use of a Broken or Risky Cryptographic Algorithm)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://community.rapid7.com/community/nexpose/blog/2017/05/31/r7-2017-13-nexpose-hardware-appliance-ssh-enabled-obsolete-algorithms-cve-2017-5243",
              "refsource": "CONFIRM",
              "url": "https://community.rapid7.com/community/nexpose/blog/2017/05/31/r7-2017-13-nexpose-hardware-appliance-ssh-enabled-obsolete-algorithms-cve-2017-5243"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9974b330-7714-4307-a722-5648477acda7",
    "assignerShortName": "rapid7",
    "cveId": "CVE-2017-5243",
    "datePublished": "2017-06-06T16:00:00.000Z",
    "dateReserved": "2017-01-09T00:00:00.000Z",
    "dateUpdated": "2024-08-05T14:55:35.807Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2017-5243",
      "date": "2026-09-16",
      "epss": "0.00507",
      "percentile": "0.42031"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:rapid7:nexpose:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"6.4.40\", \"matchCriteriaId\": \"A1B79EC4-5022-4BE6-AF39-972407FD03AD\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"The default SSH configuration in Rapid7 Nexpose hardware appliances shipped before June 2017 does not specify desired algorithms for key exchange and other important functions. As a result, it falls back to allowing ALL algorithms supported by the relevant version of OpenSSH and makes the installations vulnerable to a range of MITM, downgrade, and decryption attacks.\"}, {\"lang\": \"es\", \"value\": \"La configuraci\\u00f3n por defecto de SSH en los dispositivos hardware con Nexpose de Rapid7 enviados antes de Junio de 2017 no especifica los algoritmos deseados para el intercambio de claves y otras funciones importantes. Como resultado, vuelve a permitir TODOS los algoritmos compatibles para la versi\\u00f3n relevante de OpenSSH y hace que las instalaciones sean vulnerables a una variedad de ataques MITM, degradados y descifrados.\"}]",
      "id": "CVE-2017-5243",
      "lastModified": "2024-11-21T03:27:21.440",
      "metrics": "{\"cvssMetricV30\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H\", \"baseScore\": 8.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 6.0}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:M/Au:N/C:P/I:P/A:P\", \"baseScore\": 6.8, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 8.6, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2017-06-06T16:29:00.173",
      "references": "[{\"url\": \"https://community.rapid7.com/community/nexpose/blog/2017/05/31/r7-2017-13-nexpose-hardware-appliance-ssh-enabled-obsolete-algorithms-cve-2017-5243\", \"source\": \"cve@rapid7.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://community.rapid7.com/community/nexpose/blog/2017/05/31/r7-2017-13-nexpose-hardware-appliance-ssh-enabled-obsolete-algorithms-cve-2017-5243\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "cve@rapid7.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"cve@rapid7.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-327\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-327\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2017-5243\",\"sourceIdentifier\":\"cve@rapid7.com\",\"published\":\"2017-06-06T16:29:00.173\",\"lastModified\":\"2026-05-13T00:24:29.033\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The default SSH configuration in Rapid7 Nexpose hardware appliances shipped before June 2017 does not specify desired algorithms for key exchange and other important functions. As a result, it falls back to allowing ALL algorithms supported by the relevant version of OpenSSH and makes the installations vulnerable to a range of MITM, downgrade, and decryption attacks.\"},{\"lang\":\"es\",\"value\":\"La configuraci\u00f3n por defecto de SSH en los dispositivos hardware con Nexpose de Rapid7 enviados antes de Junio de 2017 no especifica los algoritmos deseados para el intercambio de claves y otras funciones importantes. Como resultado, vuelve a permitir TODOS los algoritmos compatibles para la versi\u00f3n relevante de OpenSSH y hace que las instalaciones sean vulnerables a una variedad de ataques MITM, degradados y descifrados.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":8.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":6.0}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:P/A:P\",\"baseScore\":6.8,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cve@rapid7.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-327\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-327\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:rapid7:nexpose:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"6.4.40\",\"matchCriteriaId\":\"A1B79EC4-5022-4BE6-AF39-972407FD03AD\"}]}]}],\"references\":[{\"url\":\"https://community.rapid7.com/community/nexpose/blog/2017/05/31/r7-2017-13-nexpose-hardware-appliance-ssh-enabled-obsolete-algorithms-cve-2017-5243\",\"source\":\"cve@rapid7.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://community.rapid7.com/community/nexpose/blog/2017/05/31/r7-2017-13-nexpose-hardware-appliance-ssh-enabled-obsolete-algorithms-cve-2017-5243\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…