CVE-2013-6890
Vulnerability from cvelistv5
Published
2013-12-23 22:00
Modified
2024-08-06 17:53
Severity ?
Summary
denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names.
Impacted products
Vendor Product Version
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T17:53:44.689Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "56239",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/56239"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1045982"
          },
          {
            "name": "[oss-security] 20131222 Re: [SECURITY] [DSA 2826-1] denyhosts security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://seclists.org/oss-sec/2013/q4/535"
          },
          {
            "name": "DSA-2826",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2013/dsa-2826"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2013-12-22T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2013-12-23T21:57:01",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "56239",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/56239"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1045982"
        },
        {
          "name": "[oss-security] 20131222 Re: [SECURITY] [DSA 2826-1] denyhosts security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://seclists.org/oss-sec/2013/q4/535"
        },
        {
          "name": "DSA-2826",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2013/dsa-2826"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2013-6890",
          "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": "denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "56239",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/56239"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1045982",
              "refsource": "MISC",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1045982"
            },
            {
              "name": "[oss-security] 20131222 Re: [SECURITY] [DSA 2826-1] denyhosts security update",
              "refsource": "MLIST",
              "url": "http://seclists.org/oss-sec/2013/q4/535"
            },
            {
              "name": "DSA-2826",
              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2013/dsa-2826"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2013-6890",
    "datePublished": "2013-12-23T22:00:00",
    "dateReserved": "2013-11-28T00:00:00",
    "dateUpdated": "2024-08-06T17:53:44.689Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2013-6890\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2013-12-23T22:55:03.050\",\"lastModified\":\"2024-11-21T01:59:55.363\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names.\"},{\"lang\":\"es\",\"value\":\"denyhosts v2.6 utiliza una expresi\u00f3n regular incorrecta al analizar los registros de autenticaci\u00f3n, , lo cual permite a atacantes remotos causar una denegaci\u00f3n de servicio (secuencia incorrecta de direcciones IP) a trav\u00e9s de  nombres de inicio de sesi\u00f3n manipulados.\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-287\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"036E8A89-7A16-411F-9D31-676313BB7244\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"16F59A04-14CF-49E2-9973-645477EA09DA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:7.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7B21E9A8-CE63-42C2-A11A-94D977A96DF1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"20294CE7-12C8-43CA-A702-5ED2A3044FFC\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:phil_schwartz:denyhosts:2.6:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8215831-4E32-4451-AB45-598B8F5620A9\"}]}]}],\"references\":[{\"url\":\"http://seclists.org/oss-sec/2013/q4/535\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://secunia.com/advisories/56239\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://www.debian.org/security/2013/dsa-2826\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1045982\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://seclists.org/oss-sec/2013/q4/535\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://secunia.com/advisories/56239\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://www.debian.org/security/2013/dsa-2826\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1045982\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.