{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-24T14:22:24.432","vulnerabilities":[{"cve":{"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 están codificadas en el firmware y pueden ser extraídas por cualquiera que invierta el firmware para identificarlas. Si la versión 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 función vulnerable que configura las credenciales predeterminadas en el dispositivo. Si uno abre este binario en IDA-pro, notará que sigue un formato ARM en little endian. La función sub_3DB2FC en IDA pro se identifica para configurar los valores en la dirección 0x003DB5A6. El sub_5C057C luego establece este valor y lo agrega a los archivos de Configuración en el archivo / mnt / mtd / Config / Account1."}],"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"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"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"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-798"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:amcrest:ipm-721s_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2.420.ac00.16.r.20160909","matchCriteriaId":"2EC72AB3-67BC-4187-8918-8030B045F383"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:amcrest:ipm-721s:-:*:*:*:*:*:*:*","matchCriteriaId":"A8A354BD-B8FC-45D1-B8B2-5A44334CF2F8"}]}]}],"references":[{"url":"http://packetstormsecurity.com/files/153224/Amcrest-IPM-721S-Credential-Disclosure-Privilege-Escalation.html","source":"cve@mitre.org","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Amcrest_sec_issues.pdf","source":"cve@mitre.org","tags":["Exploit","Third Party Advisory"]},{"url":"https://seclists.org/bugtraq/2019/Jun/8","source":"cve@mitre.org","tags":["Mailing List","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/153224/Amcrest-IPM-721S-Credential-Disclosure-Privilege-Escalation.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Amcrest_sec_issues.pdf","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"]},{"url":"https://seclists.org/bugtraq/2019/Jun/8","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]}]}}]}