VAR-202011-0887

Vulnerability from variot - Updated: 2024-11-23 22:11

An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur

Show details on source website

{
  "@context": {
    "@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
    "affected_products": {
      "@id": "https://www.variotdbs.pl/ref/affected_products"
    },
    "configurations": {
      "@id": "https://www.variotdbs.pl/ref/configurations"
    },
    "credits": {
      "@id": "https://www.variotdbs.pl/ref/credits"
    },
    "cvss": {
      "@id": "https://www.variotdbs.pl/ref/cvss/"
    },
    "description": {
      "@id": "https://www.variotdbs.pl/ref/description/"
    },
    "exploit_availability": {
      "@id": "https://www.variotdbs.pl/ref/exploit_availability/"
    },
    "external_ids": {
      "@id": "https://www.variotdbs.pl/ref/external_ids/"
    },
    "iot": {
      "@id": "https://www.variotdbs.pl/ref/iot/"
    },
    "iot_taxonomy": {
      "@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
    },
    "patch": {
      "@id": "https://www.variotdbs.pl/ref/patch/"
    },
    "problemtype_data": {
      "@id": "https://www.variotdbs.pl/ref/problemtype_data/"
    },
    "references": {
      "@id": "https://www.variotdbs.pl/ref/references/"
    },
    "sources": {
      "@id": "https://www.variotdbs.pl/ref/sources/"
    },
    "sources_release_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_release_date/"
    },
    "sources_update_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_update_date/"
    },
    "threat_type": {
      "@id": "https://www.variotdbs.pl/ref/threat_type/"
    },
    "title": {
      "@id": "https://www.variotdbs.pl/ref/title/"
    },
    "type": {
      "@id": "https://www.variotdbs.pl/ref/type/"
    }
  },
  "@id": "https://www.variotdbs.pl/vuln/VAR-202011-0887",
  "affected_products": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/affected_products#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "model": "fedora",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "fedoraproject",
        "version": "33"
      },
      {
        "model": "asterisk",
        "scope": "gte",
        "trust": 1.0,
        "vendor": "sangoma",
        "version": "13.0"
      },
      {
        "model": "asterisk",
        "scope": "gte",
        "trust": 1.0,
        "vendor": "sangoma",
        "version": "18.0"
      },
      {
        "model": "certified asterisk",
        "scope": "lte",
        "trust": 1.0,
        "vendor": "asterisk",
        "version": "16.8.0"
      },
      {
        "model": "asterisk",
        "scope": "gte",
        "trust": 1.0,
        "vendor": "sangoma",
        "version": "16.0"
      },
      {
        "model": "asterisk",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "sangoma",
        "version": "13.37.1"
      },
      {
        "model": "asterisk",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "sangoma",
        "version": "18.0.1"
      },
      {
        "model": "linux",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "debian",
        "version": "9.0"
      },
      {
        "model": "asterisk",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "sangoma",
        "version": "17.8.1"
      },
      {
        "model": "asterisk",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "sangoma",
        "version": "16.14.1"
      },
      {
        "model": "asterisk",
        "scope": "gte",
        "trust": 1.0,
        "vendor": "sangoma",
        "version": "17.0"
      },
      {
        "model": "asterisk open source",
        "scope": null,
        "trust": 0.8,
        "vendor": "digium",
        "version": null
      },
      {
        "model": "certified asterisk",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "digium",
        "version": "16.8-cert5"
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-013387"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-28242"
      }
    ]
  },
  "cve": "CVE-2020-28242",
  "cvss": {
    "@context": {
      "cvssV2": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
      },
      "cvssV3": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
      },
      "severity": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/cvss/severity#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/severity"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "cvssV2": [
          {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "author": "nvd@nist.gov",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.0,
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 8.0,
            "id": "CVE-2020-28242",
            "impactScore": 2.9,
            "integrityImpact": "NONE",
            "severity": "MEDIUM",
            "trust": 1.8,
            "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
            "version": "2.0"
          }
        ],
        "cvssV3": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "author": "nvd@nist.gov",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 2.8,
            "id": "CVE-2020-28242",
            "impactScore": 3.6,
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "trust": 1.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          {
            "attackComplexity": "Low",
            "attackVector": "Network",
            "author": "NVD",
            "availabilityImpact": "High",
            "baseScore": 6.5,
            "baseSeverity": "Medium",
            "confidentialityImpact": "None",
            "exploitabilityScore": null,
            "id": "CVE-2020-28242",
            "impactScore": null,
            "integrityImpact": "None",
            "privilegesRequired": "Low",
            "scope": "Unchanged",
            "trust": 0.8,
            "userInteraction": "None",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "nvd@nist.gov",
            "id": "CVE-2020-28242",
            "trust": 1.0,
            "value": "MEDIUM"
          },
          {
            "author": "NVD",
            "id": "CVE-2020-28242",
            "trust": 0.8,
            "value": "Medium"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-202011-675",
            "trust": 0.6,
            "value": "MEDIUM"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-013387"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202011-675"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-28242"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2020-28242"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-013387"
      }
    ],
    "trust": 1.62
  },
  "external_ids": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/external_ids#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "db": "NVD",
        "id": "CVE-2020-28242",
        "trust": 2.4
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-013387",
        "trust": 0.8
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202011-675",
        "trust": 0.6
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-013387"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202011-675"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-28242"
      }
    ]
  },
  "id": "VAR-202011-0887",
  "iot": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": true,
    "sources": [
      {
        "db": "VARIoT devices database",
        "id": null
      }
    ],
    "trust": 0.348297215
  },
  "last_update_date": "2024-11-23T22:11:15.384000Z",
  "patch": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/patch#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "title": "AST-2020-002",
        "trust": 0.8,
        "url": "http://downloads.asterisk.org/pub/security/AST-2020-002.html"
      },
      {
        "title": "Digium Asterisk Open Source  and Certified Asterisk Security vulnerabilities",
        "trust": 0.6,
        "url": "http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=135266"
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-013387"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202011-675"
      }
    ]
  },
  "problemtype_data": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "problemtype": "CWE-674",
        "trust": 1.0
      },
      {
        "problemtype": "Inappropriate recursive control (CWE-674) [NVD Evaluation ]",
        "trust": 0.8
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-013387"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-28242"
      }
    ]
  },
  "references": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/references#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "trust": 1.6,
        "url": "http://downloads.asterisk.org/pub/security/ast-2020-002.html"
      },
      {
        "trust": 1.6,
        "url": "https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html"
      },
      {
        "trust": 1.4,
        "url": "https://nvd.nist.gov/vuln/detail/cve-2020-28242"
      },
      {
        "trust": 1.0,
        "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/qus54qtqcykr36eiulyd544gxda644hb/"
      },
      {
        "trust": 0.6,
        "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/qus54qtqcykr36eiulyd544gxda644hb/"
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-013387"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202011-675"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-28242"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-013387"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202011-675"
      },
      {
        "db": "NVD",
        "id": "CVE-2020-28242"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-06-29T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2020-013387"
      },
      {
        "date": "2020-11-06T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202011-675"
      },
      {
        "date": "2020-11-06T06:15:11.930000",
        "db": "NVD",
        "id": "CVE-2020-28242"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-06-29T08:35:00",
        "db": "JVNDB",
        "id": "JVNDB-2020-013387"
      },
      {
        "date": "2022-04-06T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202011-675"
      },
      {
        "date": "2024-11-21T05:22:30.340000",
        "db": "NVD",
        "id": "CVE-2020-28242"
      }
    ]
  },
  "threat_type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/threat_type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "remote",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202011-675"
      }
    ],
    "trust": 0.6
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Asterisk\u00a0Open\u00a0Source\u00a0 and \u00a0Certified\u00a0Asterisk\u00a0 Recursion control vulnerability in",
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2020-013387"
      }
    ],
    "trust": 0.8
  },
  "type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "other",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202011-675"
      }
    ],
    "trust": 0.6
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
Events included in the timeline

Loading timeline…


    Loading…

    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.