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CVE-2017-8226

Published: Jul 3, 2019Updated: Nov 21, 2024 Sources: CVE List NVDCWE-798
9.8CRITICAL
NVD MITRE
EPSS Score
3.8%
Top 10.5%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available
Self-Check
OpenVAS

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-798

Affected Products

amcrest
commercial·US
ipm-721s firmwareEmbedded
ICS / OT / IoT / ip-camera-nvr
and 1 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Credential Access
Initial Access
View detailed technique mapping

References

http://packetstormsecurity.com/files/153224/Amcrest-IPM-721S-Credential-Disclosure-Privilege-Escalation.html
packetstormsecurity.com
https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Amcrest_sec_issues.pdf
github.com
https://seclists.org/bugtraq/2019/Jun/8
seclists.org

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