{
  "id": "CVE-2017-8226",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2019-07-03T20:15:10.430",
  "lastModified": "2024-11-21T03:33:34.810",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Amcrest IPM-721S V2.420.AC00.16.R.20160909 devices have default credentials that are hardcoded in the firmware and can be extracted by anyone who reverses the firmware to identify them. If the firmware version V2.420.AC00.16.R 9/9/2016 is dissected using binwalk tool, one obtains a _user-x.squashfs.img.extracted archive which contains the filesystem set up on the device that many of the binaries in the /usr folder. The binary \"sonia\" is the one that has the vulnerable function that sets up the default credentials on the device. If one opens this binary in IDA-pro, one will notice that this follows a ARM little endian format. The function sub_3DB2FC in IDA pro is identified to be setting up the values at address 0x003DB5A6. The sub_5C057C then sets this value and adds it to the Configuration files in /mnt/mtd/Config/Account1 file."
    },
    {
      "lang": "es",
      "value": "Los dispositivos Amcrest IPM-721S V2.420.AC00.16.R.20160909 tienen credenciales predeterminadas que est\u00e1n codificadas en el firmware y pueden ser extra\u00eddas por cualquiera que invierta el firmware para identificarlas. Si la versi\u00f3n del firmware V2.420.AC00.16.R 9/9/2016 se diseca con la herramienta binwalk, se obtiene un archivo _user-x.squashfs.img.extracted que contiene el sistema de archivos configurado en el dispositivo que muchos de los binarios en la carpeta / usr. El \"sonia\" binario es el que tiene la funci\u00f3n vulnerable que configura las credenciales predeterminadas en el dispositivo. Si uno abre este binario en IDA-pro, notar\u00e1 que sigue un formato ARM en little endian. La funci\u00f3n sub_3DB2FC en IDA pro se identifica para configurar los valores en la direcci\u00f3n 0x003DB5A6. El sub_5C057C luego establece este valor y lo agrega a los archivos de Configuraci\u00f3n en el archivo / mnt / mtd / Config / Account1."
    }
  ],
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        "type": "Primary",
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          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
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        "impactScore": 5.9
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        "acInsufInfo": false,
        "obtainAllPrivilege": false,
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        "obtainOtherPrivilege": false,
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  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "value": "CWE-798"
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