CVE-2017-5544 (GCVE-0-2017-5544)

Vulnerability from cvelistv5 – Published: 2017-01-23 06:49 – Updated: 2024-08-05 15:04
VLAI?
Summary
An issue was discovered on FiberHome Fengine S5800 switches V210R240. An unauthorized attacker can access the device's SSH service, using a password cracking tool to establish SSH connections quickly. This will trigger an increase in the SSH login timeout (each of the login attempts will occupy a connection slot for a longer time). Once this occurs, legitimate login attempts via SSH/telnet will be refused, resulting in a denial of service; you must restart the device.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
http://www.nfcwar.com x_refsource_MISC
http://www.securityfocus.com/bid/95708 vdb-entryx_refsource_BID
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T15:04:15.292Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://www.nfcwar.com"
          },
          {
            "name": "95708",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/95708"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2017-01-23T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered on FiberHome Fengine S5800 switches V210R240. An unauthorized attacker can access the device\u0027s SSH service, using a password cracking tool to establish SSH connections quickly. This will trigger an increase in the SSH login timeout (each of the login attempts will occupy a connection slot for a longer time). Once this occurs, legitimate login attempts via SSH/telnet will be refused, resulting in a denial of service; you must restart the device."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-01-24T10:57:01",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://www.nfcwar.com"
        },
        {
          "name": "95708",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/95708"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-5544",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An issue was discovered on FiberHome Fengine S5800 switches V210R240. An unauthorized attacker can access the device\u0027s SSH service, using a password cracking tool to establish SSH connections quickly. This will trigger an increase in the SSH login timeout (each of the login attempts will occupy a connection slot for a longer time). Once this occurs, legitimate login attempts via SSH/telnet will be refused, resulting in a denial of service; you must restart the device."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "http://www.nfcwar.com",
              "refsource": "MISC",
              "url": "http://www.nfcwar.com"
            },
            {
              "name": "95708",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/95708"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2017-5544",
    "datePublished": "2017-01-23T06:49:00",
    "dateReserved": "2017-01-19T00:00:00",
    "dateUpdated": "2024-08-05T15:04:15.292Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2017-5544\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2017-01-23T07:59:00.547\",\"lastModified\":\"2025-04-20T01:37:25.860\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An issue was discovered on FiberHome Fengine S5800 switches V210R240. An unauthorized attacker can access the device\u0027s SSH service, using a password cracking tool to establish SSH connections quickly. This will trigger an increase in the SSH login timeout (each of the login attempts will occupy a connection slot for a longer time). Once this occurs, legitimate login attempts via SSH/telnet will be refused, resulting in a denial of service; you must restart the device.\"},{\"lang\":\"es\",\"value\":\"Un problema fue descubierto en los switches FiberHome Fengine S5800 V210R240. Un atacante no autorizado puede acceder al servicio SSH del dispositivo, utilizando una herramienta de craqueo de contrase\u00f1as para establecer r\u00e1pidamente conexiones SSH. Esto desencadenar\u00e1 un incremento en el tiempo de espera en el inicio de sesi\u00f3n SSH (cada un de los intentos de inicio de sesi\u00f3n ocupar\u00e1 una ranura de conexi\u00f3n durante un tiempo mayor). Una vez que esto ocurra, los intentos de inicio de sesi\u00f3n leg\u00edtimos a trav\u00e9s de SSH/telnet ser\u00e1n rechazados, resultando en una denegaci\u00f3n de servicio; debe reiniciar el dispositivo.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:N/A:C\",\"baseScore\":7.1,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":8.6,\"impactScore\":6.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fiberhome:fengine_s5800_firmware:v210r240:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C4C4C2BB-CB68-47EA-A125-7DECA73630D3\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:fiberhome:fengine_28f-s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FDA77F7F-59F0-4E9A-A6FA-55E6710D58EA\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:fiberhome:fengine_52f-s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BA8E0A26-FF86-43F3-9D33-EF0B5648403C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:fiberhome:fengine_52t-s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C61388D1-E384-4DFF-89FF-72CA6B22AD9D\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:fiberhome:fengine_s5800-28t-s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F5C5E8A6-8404-4F29-BC42-99AEB3DF91AC\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:fiberhome:fengine_s5800-28t-s-pe:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"35DEF0C7-1261-498F-AB16-9078806F856E\"}]}]}],\"references\":[{\"url\":\"http://www.nfcwar.com\",\"source\":\"cve@mitre.org\",\"tags\":[\"URL Repurposed\"]},{\"url\":\"http://www.securityfocus.com/bid/95708\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.nfcwar.com\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"URL Repurposed\"]},{\"url\":\"http://www.securityfocus.com/bid/95708\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.