fkie_cve-2019-18790
Vulnerability from fkie_nvd
Published
2019-11-22 17:15
Modified
2024-11-21 04:33
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
An issue was discovered in channels/chan_sip.c in Sangoma Asterisk 13.x before 13.29.2, 16.x before 16.6.2, and 17.x before 17.0.1, and Certified Asterisk 13.21 before cert5. A SIP request can be sent to Asterisk that can change a SIP peer's IP address. A REGISTER does not need to occur, and calls can be hijacked as a result. The only thing that needs to be known is the peer's name; authentication details such as passwords do not need to be known. This vulnerability is only exploitable when the nat option is set to the default, or auto_force_rport.
References
cve@mitre.orghttp://downloads.asterisk.org/pub/security/AST-2019-006.htmlPatch, Vendor Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2019/11/msg00038.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2022/04/msg00001.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://www.asterisk.org/downloads/security-advisoriesVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://downloads.asterisk.org/pub/security/AST-2019-006.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2019/11/msg00038.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/04/msg00001.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.asterisk.org/downloads/security-advisoriesVendor Advisory
Impacted products
Vendor Product Version
digium asterisk *
digium asterisk *
digium asterisk *
digium certified_asterisk 13.21.0
digium certified_asterisk 13.21.0
digium certified_asterisk 13.21.0
digium certified_asterisk 13.21.0
digium certified_asterisk 13.21.0
digium certified_asterisk 13.21.0
debian debian_linux 8.0
debian debian_linux 9.0


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in channels/chan_sip.c in Sangoma Asterisk 13.x before 13.29.2, 16.x before 16.6.2, and 17.x before 17.0.1, and Certified Asterisk 13.21 before cert5. A SIP request can be sent to Asterisk that can change a SIP peer\u0027s IP address. A REGISTER does not need to occur, and calls can be hijacked as a result. The only thing that needs to be known is the peer\u0027s name; authentication details such as passwords do not need to be known. This vulnerability is only exploitable when the nat option is set to the default, or auto_force_rport."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en channels/chan_sip.c en Sangoma Asterisk 13.x antes de 13.29.2, 16.x antes de 16.6.2, y 17.x antes de 17.0.1, y Certified Asterisk 13.21 antes de cert5. Una solicitud SIP puede ser enviada a Asterisk que puede cambiar la direcci\u00f3n IP de un peer SIP. Un REGISTRO no necesita ocurrir, y las llamadas pueden ser secuestradas como resultado. Lo \u00fanico que se necesita conocer es el nombre del peer; los detalles de autenticaci\u00f3n como las contrase\u00f1as no necesitan ser conocidos. Esta vulnerabilidad s\u00f3lo es explotable cuando la opci\u00f3n nat est\u00e1 configurada por defecto, o auto_force_rport"
    }
  ],
  "id": "CVE-2019-18790",
  "lastModified": "2024-11-21T04:33:34.090",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
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          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "version": "2.0"
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        "exploitabilityScore": 8.6,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
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          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
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        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "nvd@nist.gov",
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  },
  "published": "2019-11-22T17:15:11.740",
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  "vulnStatus": "Modified",
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}


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