CVE-2018-12520 (GCVE-0-2018-12520)

Vulnerability from cvelistv5 – Published: 2018-07-05 20:00 – Updated: 2024-08-05 08:38
VLAI?
Summary
An issue was discovered in ntopng 3.4 before 3.4.180617. The PRNG involved in the generation of session IDs is not seeded at program startup. This results in deterministic session IDs being allocated for active user sessions. An attacker with foreknowledge of the operating system and standard library in use by the host running the service and the username of the user whose session they're targeting can abuse the deterministic random number generation in order to hijack the user's session, thus escalating their access.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T08:38:05.943Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a"
          },
          {
            "name": "44973",
            "tags": [
              "exploit",
              "x_refsource_EXPLOIT-DB",
              "x_transferred"
            ],
            "url": "https://www.exploit-db.com/exploits/44973/"
          },
          {
            "name": "20180702 ntop-ng \u003c 3.4.180617 - Authentication bypass / session hijacking",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2018/Jul/14"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2018-07-02T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in ntopng 3.4 before 3.4.180617. The PRNG involved in the generation of session IDs is not seeded at program startup. This results in deterministic session IDs being allocated for active user sessions. An attacker with foreknowledge of the operating system and standard library in use by the host running the service and the username of the user whose session they\u0027re targeting can abuse the deterministic random number generation in order to hijack the user\u0027s session, thus escalating their access."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-07-06T09:57:01",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a"
        },
        {
          "name": "44973",
          "tags": [
            "exploit",
            "x_refsource_EXPLOIT-DB"
          ],
          "url": "https://www.exploit-db.com/exploits/44973/"
        },
        {
          "name": "20180702 ntop-ng \u003c 3.4.180617 - Authentication bypass / session hijacking",
          "tags": [
            "mailing-list",
            "x_refsource_FULLDISC"
          ],
          "url": "http://seclists.org/fulldisclosure/2018/Jul/14"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-12520",
          "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 in ntopng 3.4 before 3.4.180617. The PRNG involved in the generation of session IDs is not seeded at program startup. This results in deterministic session IDs being allocated for active user sessions. An attacker with foreknowledge of the operating system and standard library in use by the host running the service and the username of the user whose session they\u0027re targeting can abuse the deterministic random number generation in order to hijack the user\u0027s session, thus escalating their access."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a",
              "refsource": "CONFIRM",
              "url": "https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a"
            },
            {
              "name": "44973",
              "refsource": "EXPLOIT-DB",
              "url": "https://www.exploit-db.com/exploits/44973/"
            },
            {
              "name": "20180702 ntop-ng \u003c 3.4.180617 - Authentication bypass / session hijacking",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2018/Jul/14"
            },
            {
              "name": "https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f",
              "refsource": "MISC",
              "url": "https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-12520",
    "datePublished": "2018-07-05T20:00:00",
    "dateReserved": "2018-06-17T00:00:00",
    "dateUpdated": "2024-08-05T08:38:05.943Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ntop:ntopng:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"3.4\", \"versionEndExcluding\": \"3.4.180617\", \"matchCriteriaId\": \"4430DA75-F986-4B4E-9163-789C6269C328\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"An issue was discovered in ntopng 3.4 before 3.4.180617. The PRNG involved in the generation of session IDs is not seeded at program startup. This results in deterministic session IDs being allocated for active user sessions. An attacker with foreknowledge of the operating system and standard library in use by the host running the service and the username of the user whose session they\u0027re targeting can abuse the deterministic random number generation in order to hijack the user\u0027s session, thus escalating their access.\"}, {\"lang\": \"es\", \"value\": \"Se ha descubierto un problema en ntopng, en versiones 3.4 anteriores a la 3.4.180617. El PRNG implicado en la generaci\\u00f3n de ID de sesi\\u00f3n no se propaga al iniciar el programa. Esto resulta en que se asignan ID de sesi\\u00f3n deterministas para las sesiones activas de usuario. Un atacante con conocimientos del sistema operativo y biblioteca est\\u00e1ndar en uso por parte del host que ejecuta el servicio y el nombre de usuario del usuario cuya sesi\\u00f3n est\\u00e1 en el punto de mira puede abusar de la generaci\\u00f3n determinista de n\\u00fameros aleatorios para secuestrar la sesi\\u00f3n del usuario y escalando su acceso.\"}]",
      "id": "CVE-2018-12520",
      "lastModified": "2024-11-21T03:45:21.340",
      "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:H/I:H/A:H\", \"baseScore\": 8.1, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.2, \"impactScore\": 5.9}], \"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": "2018-07-05T20:29:00.527",
      "references": "[{\"url\": \"http://seclists.org/fulldisclosure/2018/Jul/14\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\"]}, {\"url\": \"https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a\", \"source\": \"cve@mitre.org\", \"tags\": [\"Patch\"]}, {\"url\": \"https://www.exploit-db.com/exploits/44973/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://seclists.org/fulldisclosure/2018/Jul/14\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\"]}, {\"url\": \"https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://www.exploit-db.com/exploits/44973/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\", \"VDB Entry\"]}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-335\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2018-12520\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2018-07-05T20:29:00.527\",\"lastModified\":\"2024-11-21T03:45:21.340\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An issue was discovered in ntopng 3.4 before 3.4.180617. The PRNG involved in the generation of session IDs is not seeded at program startup. This results in deterministic session IDs being allocated for active user sessions. An attacker with foreknowledge of the operating system and standard library in use by the host running the service and the username of the user whose session they\u0027re targeting can abuse the deterministic random number generation in order to hijack the user\u0027s session, thus escalating their access.\"},{\"lang\":\"es\",\"value\":\"Se ha descubierto un problema en ntopng, en versiones 3.4 anteriores a la 3.4.180617. El PRNG implicado en la generaci\u00f3n de ID de sesi\u00f3n no se propaga al iniciar el programa. Esto resulta en que se asignan ID de sesi\u00f3n deterministas para las sesiones activas de usuario. Un atacante con conocimientos del sistema operativo y biblioteca est\u00e1ndar en uso por parte del host que ejecuta el servicio y el nombre de usuario del usuario cuya sesi\u00f3n est\u00e1 en el punto de mira puede abusar de la generaci\u00f3n determinista de n\u00fameros aleatorios para secuestrar la sesi\u00f3n del usuario y escalando su acceso.\"}],\"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:H/I:H/A:H\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":5.9}],\"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\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-335\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntop:ntopng:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.4\",\"versionEndExcluding\":\"3.4.180617\",\"matchCriteriaId\":\"4430DA75-F986-4B4E-9163-789C6269C328\"}]}]}],\"references\":[{\"url\":\"http://seclists.org/fulldisclosure/2018/Jul/14\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\"]},{\"url\":\"https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\"]},{\"url\":\"https://www.exploit-db.com/exploits/44973/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://seclists.org/fulldisclosure/2018/Jul/14\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://gist.github.com/Psychotropos/3e8c047cada9b1fb716e6a014a428b7f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\"]},{\"url\":\"https://github.com/ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://www.exploit-db.com/exploits/44973/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"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.