Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2017-8226 First vendor Publication 2019-07-03
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8226

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-798 Use of Hard-coded Credentials (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 2

Sources (Detail)

http://packetstormsecurity.com/files/153224/Amcrest-IPM-721S-Credential-Discl...
https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Amcrest_sec_iss...
https://seclists.org/bugtraq/2019/Jun/8
Source Url

Alert History

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Date Informations
2024-11-28 13:09:37
  • Multiple Updates
2020-05-23 02:08:58
  • Multiple Updates
2020-05-23 01:04:24
  • Multiple Updates
2019-07-17 21:19:29
  • Multiple Updates
2019-07-11 09:18:40
  • Multiple Updates
2019-07-05 17:19:00
  • Multiple Updates
2019-07-04 05:19:26
  • First insertion